DE102013005840A1 - An electrochemical energy conversion device having a cell housing, a battery having at least two of these electrochemical energy conversion devices, and methods for producing an electrochemical energy conversion device - Google Patents

Abstract

Electrochemical energy converter device (1) with at least one, in particular, rechargeable electrode assembly (2), which is intended to provide electrical energy, in particular to a consumer, at least at times, which has at least two electrodes (3, 3a) of different polarity, with at least one current conducting device (4 , 4a), which is provided to be electrically, preferably cohesively connected to one of the electrodes (3, 3a) of the electrode assembly (2), with a cell housing (5) with a first housing part (6), the first housing part (6 ) is provided to enclose the electrode assembly (2) at least in areas.

Description

The present invention relates to an electrochemical energy conversion device, also referred to below as a converter cell, comprising a cell housing, a battery having at least two of these electrochemical energy conversion devices, and a method for producing an electrochemical energy conversion device. The invention will be described in the context of lithium-ion batteries for the supply of motor vehicle drives. It should be noted that the invention may also be used independently of the chemistry of the converter cell or the type of battery or regardless of the type of powered drive.

Batteries with a plurality of converter cells for supplying motor vehicle drives are known from the prior art. Conventional converter cells have an electrode assembly with at least two electrodes of different polarity and a separator. The separator separates or complains the electrodes of different polarity. Furthermore, conventional converter cells have a cell housing which encloses the electrode assembly at least in certain areas. Next, conventional converter cell at least two Stromleiteinrichtungen, which are electrically connected to one electrode of the electrode assembly.

The high cost of producing some types of converter cells is sometimes perceived as problematic.

It is an object of the invention to provide a converter cell which can be manufactured with less effort or expense.

The object is achieved by an electrochemical energy conversion device according to claim 1. Claim 13 describes a battery with at least two electrochemical energy conversion devices according to the invention. The object is also achieved by a manufacturing method for an electrochemical energy conversion device according to claim 14. Preferred developments of the invention are the subject of the dependent claims.

A converter cell according to the invention, in particular designed as an electrochemical energy conversion device, has at least one in particular rechargeable electrode assembly. The at least one electrode assembly is provided to provide at least temporary electrical energy, in particular to a consumer. The electrode assembly has at least two electrodes of different polarity. The converter cell has one, two or more Stromleiteinrichtungen, wherein at least one or more of these Stromleiteinrichtungen are provided to be electrically connected to one of the electrodes of the electrode assembly, preferably cohesively. The converter cell has a cell housing with at least one in particular first housing part, wherein the cell housing is provided to enclose the electrode assembly at least in regions. The first housing part has at least one functional device, which is provided to assist the delivery of energy from the electrode assembly, in particular to a consumer. The functional device is operatively connected to the electrode assembly, in particular for receiving energy. The first housing part has at least one first support element which is provided to delimit the at least one functional device from the surroundings of the converter cell. The first support element serves in particular to support the at least one functional device, d. H. in particular to counteract an undesired relative displacement of the at least one functional device with respect to the converter cell. The first support element serves, in particular, to protect the at least one functional device against damaging influences from the environment.

Preferably, the at least one electrode assembly is provided to convert at least temporarily chemical energy into electrical energy. Preferably, the at least one electrode assembly is provided, at least temporarily, in particular to convert supplied electrical energy into chemical energy.

In the case of the inventive design of the first housing part, the functional device assumes a plurality of functions, in particular with regard to the operation of the converter cell or of the electrode assembly, which in known types of converter cells are fulfilled by discrete components. Several discrete components or functional elements are combined in the at least one functional device, in particular as a separate functional module. Thus, fewer assemblies are required for the production of the converter cell according to the invention, whereby the effort in the production or assembly is reduced. This solves the underlying task.

Next, the converter cell according to the invention has the advantage of increased durability by the first support member protects the underlying functional device against mechanical damage, in particular by a foreign body acting on the cell housing. Furthermore, the converter cell according to the invention offers the advantage of increased durability, in that the first carrier element improves the cohesion of the functional device, in particular during accelerations or vibrations during operation of the converter cell.

An electrode assembly in the sense of the invention means a device which serves in particular for the provision of electrical energy.

The electrode assembly has at least two electrodes of different polarity. These electrodes of different polarity are spaced apart by a separator, the separator being conductive to ions but not to electrons. Preferably, the electrode assembly is formed substantially cuboid. Preferably, the electrode assembly is connected to two of these Stromleiteinrichtungen different polarity in particular cohesively, which serve for at least indirect electrical connection with at least one adjacent electrode assembly and / or at least indirectly the electrical connection to the consumer.

Preferably, at least one of these electrodes has a particular metallic collector foil and an active mass. The active composition is applied to the collector foil at least on one side. When charging or discharging the electrode assembly, electrons are exchanged between the collector foil and the active mass. Preferably, at least one arrester lug is connected in particular to the collector foil in a materially bonded manner. Particularly preferred are connected in particular cohesively with the collector foil several Ableitfahnen. This embodiment has the advantage that the current per arrester lug is reduced.

Preferably, at least one of these electrodes has a particular metallic collector foil and two active materials of different polarity, which are arranged on different surfaces of the collector foil and spaced by the collector foil. For this arrangement of active masses and the term "Bizelle" is common. When charging or discharging the electrode assembly, electrons are exchanged between the collector foil and the active mass. Preferably, at least one arrester lug is connected in particular to the collector foil in a materially bonded manner. Particularly preferred are connected in particular cohesively with the collector foil several Ableitfahnen.

This embodiment offers the advantage that the number of electrons which flow per unit time through an arrester lug is reduced.

Two electrodes of different polarity are spaced in the electrode assembly by a separator. The separator is permeable to ions but not to electrons. Preferably, the separator contains at least a portion of the electrolyte or the conductive salt. Preferably, the electrolyte is formed in particular after closure of the converter cell substantially without liquid portion. Preferably, the conductive salt comprises lithium. With particular preference, lithium ions are stored or intercalated during charging into the negative electrode and are removed again during discharging.

The electrode assembly is preferably configured to convert supplied electrical energy into chemical energy and to store it as chemical energy. The electrode assembly is preferably configured to convert in particular stored chemical energy into electrical energy before the electrode assembly provides this electrical energy to a consumer. One speaks then of a rechargeable electrode assembly. With particular preference, lithium ions are stored or intercalated during charging into the negative electrode and are removed again during discharging.

According to a first preferred embodiment, the electrode assembly is designed as an electrode winding, in particular as a substantially cylindrical electrode winding. Preferably, this electrode assembly is rechargeable. This embodiment offers the advantage of easier manufacturability in particular in that band-shaped electrodes can be processed. This refinement has the advantage that the charging capacity, for example in ampere hours [Ah] or watt-hours [Wh], more rarely in Coulomb [C], can be increased in a simple manner by further windings. Preferably, the electrode assembly is formed as an electrode flat winding. This embodiment has the advantage that it can be arranged in a space-saving manner next to another electrode flat winding, in particular within a battery.

According to a further preferred embodiment, the electrode assembly is formed as a substantially cuboid electrode stack. Preferably, this electrode assembly is rechargeable. The electrode stack has a predetermined sequence of stack sheets, wherein each two electrode sheets of different polarity are separated by a separator sheet. Preferably, each electrode sheet is in particular materially connected to a current conducting device, particularly preferably formed in one piece with the current conducting device. Electrode sheets of the same polarity are preferably electrically connected to one another, in particular via a common current-conducting device. This configuration of the electrode assembly offers the advantage that the charge capacity, for example in ampere hours [Ah] or watt-hours [Wh], more rarely in Coulomb [C], can be increased in a simple manner by adding further electrode sheets. At least two separator sheets are particularly preferred connected to each other and enclose a limiting edge of an electrode sheet. Such an electrode assembly with a single, in particular meander-shaped separator is in the WO 2011/020545 described. This embodiment offers the advantage that a parasitic current, starting from this limiting edge to an electrode sheet of a different polarity, is encountered.

According to a third preferred embodiment, the electrode assembly is configured to temporarily provide electrical energy while absorbing oxygen, in particular from the ambient air or another source of oxygen. In this case, the oxygen is absorbed by at least one or more electrodes of the first polarity. When the converter cell or the electrode assembly is charged, the oxygen is released from the electrode of the first polarity, in particular to the environment. Preferably, one or more electrodes of the first polarity each have a carrier layer of fine-particle carbon, a thin active layer with a thickness of between 5 μm and 1 mm on this carrier layer, and a catalyst layer for accelerating the oxygen reduction and hydroxide oxidation. Preferably, one or more electrodes of the second polarity comprise a metal, more preferably zinc, in particular as Zn ⁰ , or lithium, in particular as Li ⁰ . This preferred embodiment offers the advantage of an increased energy density of the converter cell. This preferred embodiment can be advantageously combined with the first or second preferred embodiment.

In the context of the invention, a current-conducting device is to be understood as meaning a device which, in particular, serves to conduct electrons between one of the electrodes of the electrode assembly and a consumer or between one of the electrodes and an adjacent converter cell. For this purpose, the current-conducting device is electrically connected to one of the electrodes of the electrode assembly, preferably by material bonding. Preferably, the Stromleiteinrichtung is at least indirectly connected to a consumer to be supplied.

The current conducting device has an electrically conductive region with a metallic material, preferably aluminum and / or copper, particularly preferably in regions a coating with nickel. This embodiment offers the advantage of reduced contact resistance. Preferably, the Stromleiteinrichtung is formed solid with a metallic material. The material of the current-conducting device preferably corresponds to the material of the collector foil of the electrode with which the current-conducting device is in particular materially connected. This embodiment offers the advantage of reduced contact corrosion between the current conducting device and the collector foil.

The current conducting device has a second region, which is arranged within the converter cell. The second region is electrically connected to at least one electrode of the electrode assembly, preferably with a material fit, preferably with all electrodes of the same polarity.

Preferably, the second region has at least one arrester lug. The arrester lug is in particular materially connected to one of the electrodes of the electrode assembly, in particular to its collector foil. The Ableiterfahne is formed as an electrically conductive tape or foil, preferably as a metal foil. This refinement has the advantage that an offset between a plane of symmetry through the region of the current-conducting device which extends into the surroundings of the converter cell and a plane through this electrode or collector foil can be compensated. Particularly preferably, the second region has a plurality of arrester vanes. The arrester lugs provide multiple current paths to the same electrode, which advantageously reduces the current density per current path, or to different electrodes of the same polarity of the electrode stack, whereby a parallel connection of the electrodes of the same polarity is formed.

Preferably, the current conducting device also has a first region which extends into the surroundings of the converter cell. The first region is electrically connected, at least indirectly, to a consumer to be supplied or to a second, in particular adjacent converter cell, preferably via a connection device not belonging to the converter cell, in the sense of the invention also a busbar, a current band or a connection cable being considered as a connection device. According to a preferred embodiment, the first region is formed as a metal plate or as a plate with a metallic coating. This embodiment has the advantage that a mechanically stable, substantially flat surface is present for easy and / or as long as possible electrical connection to a connection device.

The current conducting device preferably has a substantially plate-shaped, metallic or metal-coated current conductor. In the second region of the current-conducting device, the current conductor is in particular materially connected, in particular, to all the collector tabs of the same polarity. The material of the current conductor preferably corresponds to the material of the arrester lug. This embodiment has the advantage that the current conductor for connection to a connection device and / or one of the housing parts can be made mechanically more stable than a foil-like arrester lug could be formed. This improves the durability of the converter cell. Next, this embodiment has the advantage that the Current arrester may be connected to the cell housing before the electrode assembly is attached to it with attached tabs of the cell housing.

• • der Begrenzung der Elektrodenbaugruppe gegenüber der Umgebung dient,
• • dem Schutz der Elektrodenbaugruppe gegenüber schädlichen Einflüssen aus der Umgebung dient, insbesondere zum Schutz vor Wasser aus der Umgebung,
• • dem Austritt von Substanzen aus der Elektrodengruppe in die Umgebung entgegenwirkt,
• • vorzugsweise die Elektrodenbaugruppe im Wesentlichen gasdicht umschließt.

Under a cell housing in the context of the invention is a device to understand, which in particular

• • serves to limit the electrode assembly to the environment,
• • protects the electrode assembly against harmful environmental influences, in particular to protect it from water in the environment,
• Counteracts the escape of substances from the electrode group into the environment,
• Preferably encloses the electrode assembly substantially gas-tight.

The cell housing surrounds the electrode assembly at least in regions, preferably substantially completely. The cell housing is adapted to the shape of the electrode assembly. Preferably, the cell housing, as well as the electrode assembly, formed substantially cuboid. The cell housing preferably surrounds the electrode assembly such that at least one wall of the cell housing exerts a force on the electrode assembly, the force counteracting undesirable relative movement of the electrode assembly with respect to the cell housing. Particularly preferably, the cell housing receives the electrode assembly in a form-fitting and / or non-positive manner. Preferably, the cell housing is electrically isolated from the environment. Preferably, the cell housing is electrically insulated from the electrode assembly.

The cell housing is formed with at least one substantially rigid first housing part. The first housing part has at least one functional device which assists the delivery of energy from the electrode assembly, in particular to a consumer. The first housing part has a first support element, which supports the at least one functional device with respect to the surroundings of the converter cell. In particular, the first housing part serves to limit the electrode assembly with respect to the surroundings of the converter cell and to protect the electrode assembly. In particular, the first housing part serves to protect the electrode assembly. Preferably, the first housing part has a wall thickness of at least 0.3 mm. Preferably, the material and the geometry of the first housing part are selected so that its bending stiffness withstands the stresses of operation.

A functional device in the sense of the invention is to be understood as meaning a device which serves, in particular, to assist proper operation of the electrode assembly. The functional device is operatively connected to the electrode assembly. Active-connected functional device and electrode assembly in the sense of the invention is to be understood in particular as meaning that energy, an electrical potential, substances and / or information, in particular with regard to operating parameters of the electrode assembly, can be exchanged between functional device and electrode assembly. Preferably, the at least one functional device has at least one electrically conductive region. Preferably, the at least one functional device has at least one electrically insulating region, which particularly preferably serves as a carrier for functional elements. The functional device is preferably connected in a materially bonded manner to the first support element. Compared to the environment, the functional device is substantially completely covered by the first support element, provided that the first support element has no Polkontaktausnehmung.

Preferably, the functional device is electrically connected to at least one of the electrodes, more preferably to at least two electrodes of different polarity. This embodiment has the advantage that the functional device has the electrical potential of the connected electrode, in particular can be supplied with energy from the electrode assembly.

Preferably, the functional device is designed as a diffusion barrier, whereby an exchange of a gas between the environment of the converter cell and the interior of the cell housing is met.

Preferably, the functional device is designed as a populated and / or printed, in particular flexible printed circuit board. This embodiment has the advantage that the circuit board is protected by the first support element. This embodiment offers the advantage that the circuit board remains on the converter cell when the converter cell is removed from a battery.

Preferably, the functional device is designed as flame protection or fire protection. For this purpose, the functional device has one of these chemically reactive and / or flame-retardant substances and is preferably formed as a layer or layer and in particular the adjacent electrode assembly substantially completely covering. This embodiment has the advantage that the reliability of the converter cell is improved in a fire in their environment.

A first support element in the sense of the invention means a device which is provided which has at least one Functional support at least partially support. The first support element faces the surroundings of the converter cell. By "supporting" in the sense of the invention is to be understood that an undesired relative movement of the at least one functional device with respect to the first support element or the converter cell is met. The first support element serves in particular to counteract an undesired relative displacement of the at least one functional device with respect to the first support element or the converter cell. The first support element serves, in particular, to protect the at least one functional device, in particular against damaging influences from the surroundings of the converter cell. Thus, this design offers the advantage of protecting the electrode assembly against a foreign body acting or even penetrating the cell housing, in particular without requiring separate protective devices.

The first support element has a particular fiber-interspersed first polymer material, preferably a thermoplastic. Preferably, this softening temperature of the polymer material is above the operating temperature range of the converter cell, more preferably at least 10 K. Preferably, the first support member comprises a fiber material, in particular glass fibers, carbon fibers, basalt fibers and / or aramid fibers, wherein the fiber material is used in particular the stiffening of the first support member. Particularly preferably, the fiber material is formed in particular in the form of a textile fabric as scrim or fabric and is substantially completely surrounded by the first polymer material.

Preferably, the at least one functional device is connected to the first support element in particular cohesively.

Preferably, the first support element is designed as a first support layer. This embodiment has the advantage that the at least one functional device can be supported along a larger area by the first support element, whereby in particular the integrity of the at least one functional device is improved.

Preferably, the first support element has one or two Polkontaktausnehmungen, which each make a region of the adjacent functional device from the environment of the converter cell in particular electrically accessible.

In the following, advantageous embodiments and preferred embodiments of the converter cell according to the invention and their advantages will be described.

Preferably, the converter cell according to the invention has at least two electrode assemblies, which are connected in series in the cell housing. This refinement has the advantage that the electrical voltage that can be supplied by the converter cell, in particular the terminal voltage of the traveling cell, is increased.

Preferably, the at least one functional device has at least one or more functional elements.

• • der elektrischen Verbindung der Elektrodenbaugruppe mit der Umgebung der Wandlerzelle, und/oder
• • der insbesondere elektrischen Verbindung der zumindest einer oder mehrerer dieser Funktionseinrichtungen mit der Elektrodenbaugruppe, und/oder
• • zum Zuführen von Energie insbesondere aus der Elektrodenbaugruppe zu zumindest einer oder mehrerer dieser Funktionseinrichtungen, und/oder
• • der Beeinflussung bzw. Begrenzung des elektrischen Stroms, welche in die Elektrodenbaugruppe fließt oder der Elektrodenbaugruppe entnommen wird, und/oder
• • der Steuerung der Wandlerzelle bzw. Elektrodenbaugruppe, und/oder
• • der Erfassung von Betriebsparametern der Wandlerzelle, insbesondere von Betriebsparametern der Elektrodenbaugruppe, und/oder
• • dem Austausch von Wärmeenergie mit der Elektrodenbaugruppe, vorzugsweise der Wärmeabfuhr aus der Elektrodenbaugruppe, und/oder
• • der Zufuhr oder Abfuhr eines Fluidstroms einer chemischen Substanz, und/oder
• • der Erfassung des Sicherheitszustands der Wandlerzelle, der Defektanalyse, der Zustandserfassung bzw. -mitteilung, und/oder
• • der Kommunikation mit der Umgebung, insbesondere mit einer Batteriesteuerung oder mit einer unabhängigen Steuerung.

A functional element in the sense of the invention is to be understood as an element which serves, in particular, to assist proper operation of the electrode assembly. The functional element is used in particular

• The electrical connection of the electrode assembly to the environment of the transducer cell, and / or
• • the particular electrical connection of the at least one or more of these functional devices to the electrode assembly, and / or
• For supplying energy in particular from the electrode assembly to at least one or more of these functional devices, and / or
• The influencing or limitation of the electrical current which flows into the electrode assembly or is taken from the electrode assembly, and / or
• The control of the converter cell or electrode assembly, and / or
• The detection of operating parameters of the converter cell, in particular of operating parameters of the electrode assembly, and / or
• The exchange of heat energy with the electrode assembly, preferably the heat removal from the electrode assembly, and / or
• The supply or removal of a fluid stream of a chemical substance, and / or
• The detection of the safety state of the converter cell, the defect analysis, the state detection or message, and / or
• • communicating with the environment, in particular with a battery control or with an independent controller.

• • Polkontaktbereich, welcher aus der Umgebung der Wandlerzelle insbesondere durch eine Polkontaktausnehmung des ersten Tragelements zugänglich ist, welcher insbesondere auf einer Außenfläche des Zellgehäuses angeordnet ist, wobei der Polkontaktbereich das elektrische Potential einer der Elektroden der Elektrodenbaugruppe aufweist, wobei diese Ausgestaltung den Vorteil bietet, dass zumindest eine dieser Stromleiteinrichtungen ohne ersten Bereich ausgebildet werden kann,
• • Elektrodenverbindungsbereich, welcher der elektrischen Verbindung der Funktionseinrichtung mit der Elektrodenbaugruppe, welcher insbesondere der Versorgung der Funktionseinrichtung dient, welcher insbesondere der elektrischen Verbindung mit einer der Stromleiteinrichtungen der Wandlerzelle dient,
• • Spannungsfühler, Stromfühler, Temperaturfühler bzw. Thermoelement, Drucksensor, Sensor für einen chemischen Stoff, nachfolgend „Stoffsensor” genannt, Gassensor, Flüssigkeitssensor, Lagesensor oder Beschleunigungssensor, wobei die Sensoren bzw. Fühler insbesondere der Erfassung von Betriebsparametern der Wandlerzelle, insbesondere der Elektrodenbaugruppe dienen,
• • Steuereinrichtung, insbesondere Zellsteuereinrichtung, anwendungsspezifische integrierte Schaltung, Mikroprozessor oder Datenspeichereinrichtung, welche insbesondere der Steuerung der Wandlerzelle bzw. deren Elektrodenbaugruppe dienen,
• • Stelleinrichtung, Druckentlastungseinrichtung Aktor, Schalteinrichtung, Halbleiterschalter, Entladewiderstand, Strombegrenzer oder Stromunterbrecher, welche insbesondere zur Durchführung von Abstellmaßnahmen auf erkannte, insbesondere unerwünschte Betriebszustände der Wandlerzelle dienen, welche insbesondere der Beeinflussung bzw. Begrenzung des elektrischen Stroms in die Elektrodenbaugruppe bzw. aus der Elektrodenbaugruppe dienen,
• • Leiterbahn, welcher der elektrischen Verbindung von zumindest zwei oder mehreren dieser Funktionselemente untereinander dient,
• • Ausnehmung, welche eine Verbindung von Körpern ermöglicht, die durch die Funktionseinrichtung beabstandet sind, oder welche ermöglicht, dass sich ein Körper durch die Funktionseinrichtung erstreckt,
• • Wärmeaustauschbereich, welcher dem Austausch von Wärmeenergie mit der Elektrodenbaugruppe dient,
• • Fluiddurchlass, welcher einem Austausch einer chemischen Substanz mit der Elektrodenbaugruppe dient, insbesondere dem Austausch von Sauerstoff, insbesondere aus der Umgebungsluft oder einer anderen Sauerstoffquelle, mit der Elektrodenbaugruppe, welcher vorzugsweise durch die Zellsteuereinrichtung gesteuert werden kann, insbesondere abhängig von der durch die Wandlerzelle bereitzustellende elektrische Energie bzw. Leistung, oder als
• • Piepser, lichtemittierende Diode, Infrarotschnittstelle, GPS-Einrichtung, GSM-Baugruppe, erste Nahfunkeinrichtung oder Transponder, welche der Kommunikation insbesondere mit einer Batteriesteuerung oder einer unabhängigen Steuerung dienen, welche zur Übermittlung von Daten insbesondere an eine Batteriesteuerung oder einer unabhängigen Steuerung dienen, welche insbesondere der Anzeige eines insbesondere vorbestimmten Betriebszustands der Wandlerzelle bzw. der Elektrodenbaugruppe dienen.

Preferably, at least one or more of these functional elements is designed as

• Polkontaktbereich, which is accessible from the environment of the converter cell in particular by a Polkontaktausnehmung of the first support member which is arranged in particular on an outer surface of the cell housing, wherein the Polkontaktbereich has the electrical potential of one of the electrodes of the electrode assembly, this embodiment has the advantage that at least one of these Stromleiteinrichtungen can be formed without a first area,
• Electrode connection region, which serves for the electrical connection of the functional device to the electrode assembly, which serves in particular for the supply of the functional device, which in particular serves for the electrical connection to one of the current conducting devices of the converter cell,
• • Voltage sensor, current sensor, temperature sensor or thermocouple, pressure sensor, sensor for a chemical substance, hereinafter referred to as "material sensor", gas sensor, liquid sensor, position sensor or acceleration sensor, the sensors or sensors are used in particular to detect operating parameters of the converter cell, in particular the electrode assembly .
• Control device, in particular cell control device, application-specific integrated circuit, microprocessor or data storage device, which in particular serve to control the converter cell or its electrode assembly,
• Actuator, switching device, semiconductor switch, discharge resistor, current limiter or circuit breaker, which serve in particular for carrying out Abstellmaßnahmen on detected, in particular undesirable operating states of the converter cell, which in particular the influence or limitation of the electric current in the electrode assembly or from the electrode assembly serve,
• Conductor track, which serves the electrical connection of at least two or more of these functional elements with one another,
• Recess, which allows a connection of bodies which are spaced by the functional means or which allows a body to extend through the functional means,
• Heat exchange area, which serves to exchange heat energy with the electrode assembly,
• Fluid passage, which serves to exchange a chemical substance with the electrode assembly, in particular the exchange of oxygen, in particular from the ambient air or another oxygen source, with the electrode assembly, which can be preferably controlled by the cell control device, in particular depending to be provided by the converter cell electrical energy or power, or as
• Beeper, light-emitting diode, infrared interface, GPS device, GSM module, first near-field radio or transponder, which serve the communication in particular with a battery control or an independent control, which serve for the transmission of data, in particular to a battery control or an independent control, which serve in particular the display of a particular predetermined operating state of the converter cell or the electrode assembly.

Preferably, the fluid passage is formed with at least one controllable, closable opening. Preferably, the opening can also be opened only partially by the cell control device, in particular depending on the electrical energy or power to be provided by the converter cell. Preferably, the fluid passage has a plurality of closable openings. Especially in partial load operation of the converter cell some of these openings remain closed. This preferred embodiment has the advantage that the supply of the electrode assembly can be controlled or limited with oxygen.

In one embodiment, the opening is closed by a membrane, which is in operative relationship with a signal generator. Preferably, the membrane is designed so that it can undergo a deformation when the signal transmitter transmits a signal to the membrane. Preferably, the membrane is configured as an electrically activatable membrane, in particular as a piezoelectric material, as described in, for example WO 01/97319 , Further preferably, the signal generator is designed as a battery management system. By supplying electrical charge through the battery management system, the electrically activatable membrane is excited to deform.

This has the advantage that oxygen can be supplied in a targeted manner during discharging processes, or oxygen can be discharged during charging processes, while oxygen supplied during rest phases can be kept in the electrode assembly.

Preferably, the fluid passage is formed with at least one gas-permeable membrane. Preferably, this membrane is not permeable to water vapor. More preferably, this membrane is formed with Gore- ^Tex® . This preferred embodiment offers the advantage of a lower expenditure on equipment.

• • fluorhaltige Polymere wie etwa Polyperfluorpropylenoxid oder Polyperfluorpropylenoxid-co-perfluorformaldehyd, wie etwa beschrieben in US 5 985 475 B , oder Polytetrafluorethylen, fluoriertes Ethylen-Propylen, Perfluoralkoxypolymer, Polyvinylidenfluorid, wie etwa beschrieben in US 2010/0143807 A und/oder
• • polysiloxanhaltige Polymere wie etwa beschrieben in WO 2011/001287 und/oder
• • modifizierte Polymere, wie etwa Polymerblends bestehend aus Polyvinylidenfluorid und Polyethylenoxid, wie etwa beschrieben in US 7 670 724 B , oder Polymere, welche mit fluorhaltigen Verbindungen getränkt sind, wie etwa Polyethylenterephthalat-haltige Polymere, die mit Perfluorpolyalkylenverbindungen getränkt sind, so etwa beschrieben in WO 2011/031371 .

Further preferably, as permeable to oxygen but not permeable to water configured membrane comprising polymeric compounds selected from

• Fluorine-containing polymers such as polyperfluoropropylene oxide or polyperfluoropropylene oxide-co-perfluoroformaldehyde, such as described in U.S. Pat US 5,985,475 B , or polytetrafluoroethylene, fluorinated ethylene-propylene, perfluoroalkoxy polymer, polyvinylidene fluoride, as described, for example, in US Pat US 2010/0143807 A and or
• Polysiloxane-containing polymers, such as described in US Pat WO 2011/001287 and or
• Modified polymers, such as polymer blends consisting of polyvinylidene fluoride and polyethylene oxide, such as described in U.S. Pat US Pat. No. 7,670,724 B , or polymers impregnated with fluorine-containing compounds, such as polyethylene terephthalate-containing polymers impregnated with perfluoropolyalkylene compounds, such as described in U.S. Patent Nos. 5,410,646, 4,360,774, 4,360,763, and 4,301,614 WO 2011/031371 ,

Further preferably, the oxygen permeability of a membrane can be improved by the addition of oxygen-permeable additives. Such oxygen permeable additives are selected from polydimethylsiloxane, cellulosic polymers, especially butylcellulose, cellulose acetate butyrate, or silica gel, such as described in U.S. Pat EP 2 270 905 A ,

In particular, the use of polysiloxane-containing polymers, in particular poly (siloctylene siloxane) or silicone rubber is advantageous because they are also capable of reducing the passage of nitrogen. This is advantageous because nitrogen could come into contact with the metal anode, in particular a lithium metal anode. In this case, a lithium-nitrogen compound, in particular lithium nitride Li ₃ N form, whereby the anode can be damaged.

Preferably, the functional device has at least two of these fluid passages. One of the converter cell not associated fluid delivery device can be connected to one of these two fluid passages and can supply the cell housing or the electrode assembly, a gas stream, in particular oxygen, in particular from the ambient air or another source of oxygen. This preferred embodiment has the advantage that the performance of the electrode assembly is improved.

Preferably, the fluid passage designed as a closable opening is configured to supply an electrolyte to the electrode assembly, in particular during the start-up of the already manufactured, and in particular embedded, converter cell. This preferred embodiment has the advantage that the storage of the manufactured converter cell is simplified.

Preferably, it is designed as a closable opening designed fluid passage for removal of a passivating additive from the electrode assembly, in particular during the commissioning of the already manufactured, and in particular embedded transducer cell. This preferred embodiment has the advantage that the aging of the electrode assembly or of the converter cell is slowed down during storage.

Preferably, the gas sensor is configured to detect the passage of a gas flow through one of these fluid passages. The gas sensor is preferably designed, in particular the cell control device, to provide an electrical current and / or an electrical voltage proportional to the magnitude of the gas flow. This preferred embodiment offers the advantage that the control or monitoring of the converter cell is improved.

Preferably, the cell control device is configured, in particular together with one of these gas sensors, in particular caused by a start signal of a higher-level control to control or limit the gas volume exchanged or gas flow through one of these fluid passages. Preferably, the cell control device is configured to notify a need for this fluid delivery device not associated with the converter cell. This preferred embodiment offers the advantage that the control or monitoring of the converter cell is improved.

Preferably, the first near-field radio is provided to temporarily transmit a predetermined second signal, in particular on request or to a predetermined first signal from a second near-field radio device, wherein the second near-field radio is signal-connected to a battery controller. Particularly preferably, the first near-field radio is provided to transmit an identifier for the converter cell at the same time as the predetermined second signal.

Preferably, several functional elements act together for proper operation of the electrode assembly. Particularly preferably, these functional elements are electrically connected to each other.

• • einen dieser Stromfühler für die Erfassung des elektrischen Stroms, welcher der Elektrodenbaugruppe zugeführt oder der Elektrodenbaugruppe entnommen wird, nachfolgend auch Zellstrom genannt,
• • einen dieser Spannungsfühler für die Erfassung der elektrischen Spannung der Elektrodenbaugruppe,
• • eines dieser Thermoelemente für die Erfassung der Temperatur der Elektrodenbaugruppe oder einer dieser Stromleiteinrichtungen,
• • eine dieser Zellsteuereinrichtungen für die Verarbeitung von Signalen der insbesondere zuvor genannten Messfühler,
• • einen, vorzugsweise zwei dieser Elektrodenverbindungsbereiche, welche mit einer, vorzugsweise zwei dieser Elektroden insbesondere unterschiedlicher Polarität elektrisch verbunden sind, welche vorzugsweise der Versorgung der Zellsteuereinrichtung und/oder zumindest eines dieser Messfühler mit elektrischer Energie dienen,
• • wenigstens zwei oder mehrere dieser Leiterbahnen zur elektrischen Verbindung der übrigen Funktionselemente dieser Funktionseinrichtung,
• • wenigstens einen dieser Fluiddurchlässe, vorzugsweise zwei oder mehrere dieser Fluiddurchlässe,
• • vorzugsweise zumindest eine oder mehrere dieser Schalteinrichtungen, dieser Stromunterbrecher und/oder dieser Strombegrenzer,
• • vorzugsweise diese Datenspeichereinrichtung, welche zum Abspeichern und/oder Bereitstellen von Daten und/oder Rechenvorschriften dient,
• • vorzugsweise diese erste Nahfunkeinrichtung, welche zum Austausch von Daten mit einer Batteriesteuerung bzw. deren zweiter Nahfunkeinrichtung dient,
• • vorzugsweise zwei Zellsteueranschlüsse, welche zur Verbindung mit einem Datenbus einer übergeordneten Batterie dienen, welche zum Austausch von Daten mit einer Batteriesteuerung dienen,
• • vorzugsweise zwei Wärmeaustauschbereiche, welche dem Austausch von Wärmeenergie mit der Elektrodenbaugruppe und einem nicht der Wandlerzelle zugehörigen Wärmetauscher dienen.

A first preferred embodiment of the functional device has at least as functional elements:

• One of these current sensors for the detection of the electrical current which is supplied to the electrode assembly or taken from the electrode assembly, also referred to below as the cell current,
• One of these voltage sensors for detecting the electrical voltage of the electrode assembly,
• One of these thermocouples for detecting the temperature of the electrode assembly or one of these current conducting devices,
• One of these cell control devices for the processing of signals of the above-mentioned probes in particular,
• One, preferably two, of these electrode connection regions, which are electrically connected to one, preferably two, of these electrodes, in particular of different polarity, which preferably serve to supply the cell control device and / or at least one of these sensors with electrical energy,
• At least two or more of these conductor tracks for electrically connecting the other functional elements of this functional device,
• At least one of these fluid passages, preferably two or more of these fluid passages,
• Preferably at least one or more of these switching devices, these circuit breakers and / or these current limiters,
• Preferably this data storage device, which serves for storing and / or providing data and / or calculation instructions,
• Preferably this first near-field radio device, which serves to exchange data with a battery controller or its second near-field radio device,
• Preferably two cell control terminals, which serve for connection to a data bus of a higher-level battery, which serve for the exchange of data with a battery control,
• Preferably two heat exchange areas which serve to exchange heat energy with the electrode assembly and a heat exchanger not associated with the transducer cell.

This preferred embodiment of the functional device has the advantage that the functional device can serve to control or monitor the electrode assembly. This refinement has the advantage that the functional device remains on the converter cell when the converter cell is removed from a battery.

According to a first preferred embodiment of this preferred embodiment, the functional device is formed with a printed circuit board, which is equipped with these functional elements, which has conductor tracks for connecting the other functional elements. This preferred development has the advantage that in the preparation of the first housing part, the printed circuit board can be supplied with little effort or placed on this first support element. This preferred development offers the advantage that the circuit board remains on the converter cell when the converter cell is removed from a battery.

According to a further preferred development of this preferred embodiment, the functional device is formed with a flexible film, in particular made of polyimide or Kapton ^®, which is equipped with these functional elements, which has conductor tracks for the connection of the other functional elements. This preferred development has the advantage that in the production of the first housing part, the functional device can be supplied with little effort or placed on this first support element. This preferred development offers the advantage that the functional device remains on the converter cell when the converter cell is removed from a battery.

• • zumindest bereichsweise porös ausgebildet, besonders bevorzugt mit einem Schaum, womit insbesondere eine vorbestimmte äußere Geometrie der Wandlerzelle erzielbar ist, womit insbesondere die Biegesteifigkeit des ersten Gehäuseteils erhöht wird, womit insbesondere bereichsweise ein Volumen zur Verzögerung bzw. zur Aufnahme eines auf die Wandlerzelle einwirkenden Fremdkörpers gebildet wird, womit insbesondere ein Bereich des ersten Gehäuseteils mit verringerter Wärmeleitfähigkeit gebildet ist, und/oder
• • mit einer Hohlraumstruktur, insbesondere mit einer Wabenstruktur ausgebildet, womit insbesondere die Biegesteifigkeit des ersten Gehäuseteils erhöht wird, womit insbesondere bereichsweise ein Volumen zur Verzögerung bzw. zur Aufnahme eines auf die Wandlerzelle einwirkenden Fremdkörpers gebildet wird, womit insbesondere ein Bereich des ersten Gehäuseteils mit verringerter Wärmeleitfähigkeit gebildet wird, und/oder
• • mit zumindest einem Hohlraum insbesondere für ein Temperiermedium ausgebildet, wobei das Temperiermedium dem Austausch von Wärmeenergie mit der Elektrodenbaugruppe dient, wobei das Temperiermedium den Hohlraum durchströmt insbesondere wenn die Temperatur der Elektrodenbaugruppe eine Grenztemperatur überschreitet oder unterschreitet, und/oder
• • zumindest bereichsweise mit einem expandierbaren Füllstoff ausgebildet, welcher vorgesehen ist, insbesondere bei Zufuhr einer Aktivierungsenergie Hohlräume auszubilden, insbesondere ausgelöst durch ein Funktionselement Hohlräume auszubilden, und/oder
• • zumindest bereichsweise mit einem Füllstoff (PCM) mit der Fähigkeit zum Phasenübergang insbesondere innerhalb des vorbestimmten Betriebstemperaturbereichs der Wandlerzelle ausgebildet, wobei der Füllstoff zeitweise Wärmeenergie insbesondere mit der Elektrodenbaugruppe zu deren Erwärmung oder Kühlung austauscht, und/oder
• • zumindest bereichsweise mit einem chemisch reaktiven und/oder flammhemmenden Füllstoff ausgebildet, welcher vorzugsweise vorgesehen ist, eine Substanz insbesondere aus der Elektrodenbaugruppe chemisch zu binden, vorzugsweise nach Freiwerden der Substanz aus der Elektrodenbaugruppe, und/oder
• • mit einem ersten Schichtbereich mit einer ersten Wandstärke (dick) und einen zweiten Schichtbereich mit einer zweiten Wandstärke (dünn) ausgebildet, wobei der Bruch aus der zweiten Wandstärke über der ersten Wandstärke einen vorbestimmten Wert kleiner als 1 aufweist, vorzugsweise kleiner als 0,9, bevorzugt kleiner als 0,8, bevorzugt kleiner als 0,7, bevorzugt kleiner als 0,6, bevorzugt kleiner als 0,5, bevorzugt größer als 0,05, wobei vorzugsweise der erste Schichtbereich eine geringere Dichte als der zweite Schichtbereich aufweist.

Preferably, at least one or more of these functional devices

• Formed at least partially porous, more preferably with a foam, which in particular a predetermined outer geometry of the converter cell can be achieved, which in particular the flexural rigidity of the first housing part is increased, which in particular partially a volume for delay or for receiving a foreign body acting on the converter cell is formed, which in particular a portion of the first housing part is formed with reduced thermal conductivity, and / or
• Formed with a cavity structure, in particular with a honeycomb structure, which in particular the bending stiffness of the first housing part is increased, which in particular a region for delaying or receiving a foreign body acting on the converter cell is formed, which in particular a portion of the first housing part with reduced Thermal conductivity is formed, and / or
• Formed with at least one cavity, in particular for a tempering, wherein the tempering serves to exchange heat energy with the electrode assembly, wherein the tempering medium flows through the cavity, in particular when the temperature of the electrode assembly exceeds or falls below a threshold temperature, and / or
• Formed at least in regions with an expandable filler, which is provided, in particular cavities when forming an activation energy, in particular triggered by a functional element form cavities, and / or
• Formed at least in regions with a filler (PCM) with the ability to phase transition, in particular within the predetermined operating temperature range of the converter cell, the filler intermittently heat energy exchanged in particular with the electrode assembly for heating or cooling, and / or
• • formed at least partially with a chemically reactive and / or flame retardant filler, which is preferably provided is to chemically bond a substance, in particular from the electrode assembly, preferably after the release of the substance from the electrode assembly, and / or
• Formed with a first layer region with a first wall thickness (thick) and a second layer region with a second wall thickness (thin), wherein the fraction of the second wall thickness above the first wall thickness has a predetermined value less than 1, preferably less than 0.9 , preferably less than 0.8, preferably less than 0.7, preferably less than 0.6, preferably less than 0.5, preferably greater than 0.05, wherein preferably the first layer region has a lower density than the second layer region.

According to a first preferred embodiment, the expandable filler is formed by an organic airgel having a three-dimensional framework of primary particles. These primary particles grow in particular during pyrolysis or intense heat radiation without any order together, with cavities formed between the particles. By means of these cavities, the heat permeability of the functional device is reduced. This embodiment offers the advantage of improved flame resistance of the first housing part.

According to a further preferred embodiment, the expandable filler is formed by expanded mica or vermiculite. Between the layers of its cookie structure, crystal water chemically bound. When exposed to heat, the chemically bound water is expelled abruptly, the vermiculite is inflated to a multiple of its volume.

Preferably, the chemically reactive filler also acts flame retardant, in particular by forming a protective layer or by interrupting a chain reaction with radicals. Preferably, the filler is selected from the following group, which includes alum, borax, aluminum hydroxide, M ^I M ^III (SO ₄ ) _2, and water of crystallization wherein M is a metal ion of oxidation state I or III, most preferably potassium -aluminum sulfate. According to a first preferred embodiment, the functional device is designed as a filler impregnated with the filler, particularly preferably as a cotton layer. According to a second preferred embodiment, the functional device is pressed from a powder of the filler. This preferred embodiment offers the advantage that the protection of the electrode assembly is improved in case of a fire in the vicinity of the converter cell.

The converter cell or its cell housing preferably has a second housing part.

A second housing part in the sense of the invention means a device which is provided in particular to be connected to the first housing part or at least in regions. The second housing part is provided to form the cell housing of the converter cell with the first housing part. The first housing part and the second housing part preferably surround the electrode assembly essentially completely and, in particular, counteract an exchange of substances between the electrode assembly and the surroundings of the converter cell. The second housing part has at least one first support element, which substantially corresponds to the first support element of the first housing part. Preferably, the second housing part has at least one of these functional devices. Particularly preferably, the second housing part is formed substantially identical to the first housing part. This embodiment has the advantage that manufacturing costs and storage are reduced.

In a first preferred embodiment of the cell housing, the first housing part and the second housing part are connected to one another via a hinge region. The hinge region extends along each edge of the first housing part and the second housing part. Preferably, the hinge region has a smaller wall thickness than the regions of the housing parts that bound the electrode assembly. This embodiment has the advantage that the length of the edges to be sealed of the particular cuboid cell housing is reduced.

In a second preferred embodiment of the cell housing, the first housing part and the second housing part are objected to by a frame. The housing parts are in particular materially connected to the frame. The frame essentially has four frame elements, which are arranged to one another corresponding to a rectangle. The frame defines a space in which the electrode assembly can be received. Also, a converter cell without functional devices having a cell housing formed with a frame has been termed a frame flat cell. Preferably, the frame is formed with the second polymer material, more preferably substantially entirely of the second polymer material. This preferred embodiment has the advantage that the housing parts can each be formed without a receiving space. According to a preferred development, two of these Stromleiteinrichtungen extend through the frame at least partially into the environment. According to a further preferred development, at least one of these housing parts has one or two of these pole contact areas.

Preferably, the first housing part and / or the second housing part have a receiving space, which can at least partially accommodate the electrode assembly.

Preferably, this receiving space is dimensioned such that after closing the housing parts around the electrode assembly to a cell housing a frictional force between at least one inner surface of the cell housing and a lateral surface of the electrode assembly is present. This frictional force counteracts unwanted relative movement of the cell housing and electrode assembly.

According to a preferred embodiment, the receiving spaces of the first housing part and the second housing part are formed identically. In this preferred embodiment, substantially half of the electrode assembly is received by a respective housing part. This embodiment has the advantage that manufacturing costs and storage are reduced.

According to a further preferred embodiment, the first housing part substantially completely accommodates the electrode assembly. Preferably, the first housing part is designed as a cup. The electrode assembly is arranged in the interior of the cup, wherein the interior corresponds to the receiving space. At least one functional device is arranged in the multilayer wall of the cup. In this preferred embodiment, the second housing part is formed substantially as a flat lid without receiving space and / or without functional means for closing the first housing part. This embodiment has the advantage that the second housing part can be formed cheaper. According to a preferred development, two of these current conducting devices extend at least partially into the environment through the wall of the cup or through the wall of the lid. According to a further preferred development, the lid and / or the cup on two of these Polkontaktbereiche.

Preferably, the first and / or the second housing part have a second support element, which is arranged between at least one of these functional devices and the electrode assembly.

A second support element in the sense of the invention means a device which is intended to stiffen the housing part. Preferably, the second support element is arranged between the at least one functional device and the electrode assembly. Preferably, the second support element is formed as a second support layer. The second support element has a particular fiber-interspersed first polymer material, preferably a thermoplastic. Preferably, this softening temperature is above the operating temperature range of the converter cell, more preferably at least 10 K. Further, the second support member comprises a fiber material, preferably glass fibers, carbon fibers, basalt fibers and / or aramid fibers, which serves in particular the stiffening of the second support member. The fibrous material is preferably in the form of a textile fabric in the form of a scrim or fabric, and is particularly preferably completely surrounded by the first polymer material. This embodiment offers the further advantage that the second support element separates the at least one functional device from the substances of the electrode assembly.

Particularly preferably, the second support element is connected to the at least one functional device in particular materially. This refinement has the advantage that the second day layer additionally stiffens or mechanically stabilizes the housing part.

Particularly preferably, the second support element is in particular formed materially corresponding to the first support element. This embodiment offers the advantage of reduced manufacturing costs.

Particularly preferably, the second support element is thinner than the first support element and in particular formed without fiber material. This embodiment has the advantage that the time constant in the detection of the temperature of the electrode assembly and / or the internal cell pressure is reduced.

Particularly preferably, the second support element has at least one recess, which allows a sensor of the functional device to make direct contact with the electrode assembly for detecting a substance. This embodiment offers the advantage that the presence of hydrogen fluoride, also referred to below as HF, is possible with a lesser time constant.

Particularly preferably, the second support element has, in particular in an edge region of the housing part, at least one contacting recess, which in particular serves for the electrical connection of the functional device adjacent to the second support element to one of the current conducting devices of the converter cell. This embodiment offers the advantage that the functional device has the electrical potential of one of the electrodes of the electrode assembly. This embodiment offers the further advantage that the functional device can be supplied with energy from the electrode assembly.

Preferably, the first and / or second housing part in a peripheral region on a second polymer material. The second polymer material is used in particular for the cohesive connection with one of the other housing parts, particularly preferably the cohesive connection of the first housing part with the second housing part. Preferably, this softening temperature of the second polymer material is above the operating temperature range of the converter cell, more preferably at least 10 K. This embodiment has the advantage that the permanent sealing of the interior of the cell housing is improved.

Particularly preferably, the second polymer material is formed as a thermoplastic, in particular with a softening temperature above the operating temperature range of the converter cell. This embodiment offers the advantage of a simplified supply of the second polymer material in a processing device, in particular in a shaping tool. This embodiment offers the further advantage of an intimate, in particular gas-tight connection of the second polymer material with the respective housing part.

Particularly preferably, the second polymer material encloses an edge region of the first and / or second housing part. This embodiment offers the advantage of an intimate, in particular gas-tight connection of the second polymer material with the respective housing part.

Particularly preferably, the second polymer material corresponds to the first polymer material. This embodiment offers the advantage of an intimate, in particular gas-tight connection of the second polymer material with the first polymer material.

The converter cell, in particular its cell housing, preferably has a substantially plate-shaped third housing part.

A third housing part in the sense of the invention means a device which is provided in particular to be connected at least in regions to the first housing part. The third housing part is provided to be at least partially connected to the first housing part in particular cohesively and / or to form the cell housing of the converter cell with the first housing part. The third housing part has over the first housing part has an increased thermal conductivity. This embodiment offers the advantage that the third housing part contributes to improved heat dissipation from the electrode assembly.

Preferably, the third housing part to a metal, more preferably aluminum and / or copper. This embodiment offers the advantage that the third housing part contributes to improved heat dissipation from the electrode assembly. This embodiment further offers the advantage that the protection of the electrode assembly against harmful effects from the environment of the converter cell is improved.

Preferably, the third housing part has a first heat transfer area, which is provided to exchange heat energy with the electrode assembly. Particularly preferably, this heat transfer region has geometries for increased surface area, in particular elevations, pins, cones and / or ribs, which face the surroundings of the converter cell. This embodiment offers the advantage that the third housing part contributes to improved heat dissipation from the electrode assembly.

Preferably, the third housing part has a second heat transfer area, which is provided to exchange thermal energy with a temperature control device not associated with the converter cell. Particularly preferably, the second heat transfer area is polished. This embodiment has the advantage that the surface for thermal contact of the tempering is increased. This embodiment offers the advantage that the third housing part contributes to improved heat dissipation from the electrode assembly.

Preferably, the surface of the third housing part facing the electrode assembly or the first housing part is coated in an electrically insulating manner. This embodiment has the advantage that the third housing part has no electrical potential of the electrode assembly.

The third housing part preferably has an electrode connection region and a pole contact region. Electrode connection area and Polkontaktbereich are electrically connected together. This embodiment offers the advantage that the electrode assembly can be electrically contacted via the third housing part. This refinement offers the further advantage that at least one of the current conducting devices can be formed without a first region.

Preferably, at least one or two of these current conducting devices each have at least one contacting region. The contacting region serves in particular for the electrical connection to at least one or more of these functional devices, preferably the electrical supply of at least one or more of these functional devices. At least one of these contacting regions preferably has one Metal, more preferably aluminum and / or copper.

Preferably, the contacting region is arranged in an edge region of the first housing part, in particular in the region of the second polymer material. Preferably, the second polymer material releases the contacting region from at least one of these electrode connection regions. This embodiment has the advantage that the contacting region of the second polymer material is held substantially immovable with respect to the first housing part. This refinement offers the further advantage that the second polymer material protects the electrical connection of the contacting region with the electrode connection region of the functional device from chemical stress from the surroundings of the converter cell.

The contacting region is preferably designed as a projection, which extends in the direction of the functional device, in particular through one of these contacting recesses. Particularly preferably, the contacting region is designed as a hump. This embodiment offers the advantage that the connection between the current-conducting device and the functional device can be easily automated.

Preferably, the connection between the contacting region and the electrode connection region is formed cohesively, particularly preferably by means of a friction welding or ultrasonic welding process. This embodiment offers the advantage that the connection between the current-conducting device and the functional device can be easily automated.

Preferably, one or two of these Stromleiteinrichtungen, in particular in its second region, in particular in the interior of the cell housing, depending on one or more of these Ableiterfahnen. These multiple collector lugs are designed for electrical, in particular cohesive, connection to the same electrode of the electrode assembly designed as an electrode winding or to a plurality of electrodes of the same polarity of the electrode assembly designed as an electrode assembly. Preferably, these several Ableitfahnen are connected electrically, in particular cohesively, with the same electrode formed as an electrode coil electrode assembly or with multiple electrodes of the same polarity of the electrode stack formed as an electrode assembly.

• 1. einen im wesentlichen plattenförmigen, metallischen oder metallbeschichteten Stromableiter, welcher zur elektrischen, insbesondere stoffschlüssigen, Verbindung mit wenigstens einer oder mehrerer dieser Ableiterfahnen ausgestaltet ist, welcher sich in das Innere des Zellgehäuse erstreckt, welcher besonders bevorzugt sich zumindest teilweise aus dem Zellgehäuse in die Umgebung der Wandlerzelle erstreckt, insbesondere zur elektrischen Verbindung mit einer nicht der Wandlerzelle zugehörigen Anschlusseinrichtung, oder
• 2. einen im wesentlichen plattenförmigen, metallischen oder metallbeschichteten Stromableiter, welcher zur elektrischen, insbesondere stoffschlüssigen, Verbindung mit einer dieser Funktionseinrichtung ausgestaltet ist, welcher sich zumindest teilweise aus dem Zellgehäuse in die Umgebung der Wandlerzelle erstreckt, insbesondere zur elektrischen Verbindung mit einer nicht der Wandlerzelle zugehörigen Anschlusseinrichtung, wobei die wenigstens eine Ableiterfahne mit derselben Funktionseinrichtung elektrisch, insbesondere stoffschlüssig, verbindbar ist.

Preferably, the current conducting device further comprises:

• 1. a substantially plate-shaped, metallic or metal-coated current conductor, which is designed for electrical, in particular cohesive, connection with at least one or more of these Ableiterfahnen, which extends into the interior of the cell housing, which particularly preferably at least partially from the cell housing in the Surrounding the converter cell extends, in particular for electrical connection with a non-transducer cell associated connection device, or
• 2. a substantially plate-shaped, metallic or metal-coated current conductor, which is designed for electrical, in particular cohesive, connection with a functional device which extends at least partially from the cell housing in the vicinity of the converter cell, in particular for electrical connection to a non-converter cell associated connection device, wherein the at least one Ableiterfahne with the same functional device electrically, in particular materially, connectable.

The current conducting device according to No. 1 offers the advantage of improved mechanical stability in that the arrester lugs attenuate transmission of mechanical vibrations to the operation of the converter cell on the electrode assembly.

The current conducting device according to No. 2 offers the advantage of improved mechanical stability in that the arrester lugs attenuate transmission of mechanical vibrations to the operation of the converter cell on the electrode assembly. The Stromleiteinrichtung according to No. 2 offers the advantage of a simplified structure.

Preferably, the plurality of collector tabs of the same polarity are connected to the current collector by means of a friction welding process. This preferred embodiment offers the advantage of a slower aging of the compound.

Preferably, the current conductor is connected to the first housing part, in particular in its edge region in particular cohesively. Particularly preferably, the current conductor extends through the second polymer material in the edge region of the first housing part. Thus, in a first production step, the current conductor can be connected to the first housing part in a material-locking and, in particular, gas-tight manner, and in a subsequent manufacturing step, the conductor tabs can be firmly bonded, in particular welded, to the current conductor. This embodiment has the advantage that a heat energy input during the first manufacturing step in the absence of Electrode assembly does not contribute to their heating or accelerated aging.

According to a first preferred embodiment of the current conducting device, the current conductor also extends from the cell housing into the first region of the current conducting device or into the surroundings of the converter cell. Within the cell housing one or more of these Ableitfahnen the same polarity with the current conductor electrically, in particular materially connected. Preferably, the current conductor is designed as a metal plate, stamped part and / or sheet metal pressed part. This preferred embodiment offers the advantage of lower manufacturing costs. This preferred embodiment offers the further advantage that the current conducting device is mechanically sufficiently stable in the first region or outside of the cell housing, in particular for connection to a connection device not belonging to the converter cell, for example a busbar, a current band or a power cable.

According to a second preferred embodiment of the current conducting device, the current conductor is formed with a contact surface. Within the cell housing one or more of these Ableitfahnen the same polarity with the current conductor electrically, in particular materially connected. This contact surface is arranged substantially in a lateral surface of one of these housing parts or extends only slightly into the environment. Preferably, the contact surface is provided for electrical connection to a spring-loaded connection device. This preferred embodiment has the advantage that the contact surface for transport or storage of the converter cell can be covered with an insulating adhesive strip.

Preferably, the at least one functional device of the converter cell or of the first housing part is arranged between the first support element and the second support element and is connected at least in regions, in particular in a materially bonded manner, to the support elements.

Preferably, the first support element has at least one or two of these Polkontaktausnehmungen, which make one or two of these Polkontaktbereiche the functional device from the environment in particular electrically accessible.

Preferably, the second support element has at least one or two of these contacting recesses, which are arranged adjacent to one or two of these electrode connection regions of the functional device. This embodiment offers the advantage that an exchange of electrons with the electrode assembly is also made possible without a first region of the current-conducting device extending into the environment.

According to a preferred development of the first housing part, the first support element has two pole contact recesses, the functional device has two pole contact regions of different polarity, the second support element has two contact recesses and the functional device has two electrode connection regions of different polarity. This development offers the advantage that the second or third housing part can be formed without pole contact region, which in particular reduces the associated production costs.

Preferably, a temperature sensor or thermocouple is integrated in the second region of the current-conducting device, in particular in its current conductor. The leads to the temperature sensor or thermocouple end in the edge region of the first housing part in particular at two contact surfaces in the region of a recess in the second support element. In the region of this recess, two connections to the functional device are arranged and electrically connected to the contact surfaces. This embodiment has the advantage that a temperature measurement in the current conducting device is made possible.

Preferably, the converter cell has a housing assembly with the first housing part and with at least one or two of these Stromleiteinrichtungen different polarity. This housing assembly is used in particular for the simplified production of the converter cell. The first housing part has a particular cohesive layer composite with the first support element, the at least one functional device and the second support element. Furthermore, the first housing part has the second polymer material, in particular in the edge area. Preferably, an edge region of the first housing part is at least partially enclosed by the second polymer material. Furthermore, the first housing part has the receiving space, which is provided to at least partially receive the electrode assembly. The at least one of these current conducting devices, in particular their current conductor, has this contacting region, which is arranged in the edge region of the first housing part, preferably in the second polymer material. The second support element has in the contacting region of at least one or two of these Stromleiteinrichtungen at least one or two of these Kontaktierungsausnehmungen. The contacting region is in particular electrically connected by the contacting recess with the functional device, in particular with its electrode connecting region. This preferred Design has the advantage that the housing assembly can be prepared for themselves.

The electrode assembly is inserted only after final division of this housing assembly in the receiving space. This preferred embodiment has the further advantage that heat energy inputs in the formation of the receiving space, in the arrangement of the second polymer material on the first housing part and / or in the particular cohesive connection of the current conducting device and the first housing part during the production of this housing assembly not for heating or to lead to accelerated aging of the electrode assembly.

Preferably, at least one of these functional devices, in particular of the first housing part, has this cell control device, at least one or two of these electrode connection regions, and at least one or more of these measurement probes. The at least one measuring sensor is provided to detect an operating parameter of the converter cell, in particular of its electrode assembly, and to make it available to the cell control device.

• • einen Rückschluss auf das Vorliegen eines erwünschten bzw. vorbestimmten Betriebszustands der Wandlerzelle bzw. deren Elektrodenbaugruppe gestattet, und/oder
• • einen Rückschluss auf das Vorliegen eines ungeplanten bzw. unerwünschten Betriebszustands der Wandlerzelle bzw. deren Elektrodenbaugruppe gestattet, und/oder
• • durch einen Messfühler bzw. Sensor feststellbar ist, wobei der Messfühler zumindest zeitweise ein Signal zur Verfügung stellt, vorzugsweise eine elektrische Spannung oder einen elektrischen Strom, und/oder
• • von einer Steuereinrichtung, insbesondere einer Zellsteuereinrichtung, verarbeitbar ist, insbesondere mit einem Zielwert vergleichbar ist, insbesondere mit einem anderen erfassten Parameter verknüpfbar ist, und/oder
• • Aufschluss über die Zellspannung, den Zellstrom, d. h. die Stromstärke des elektrischen Stroms in die Elektrodenbaugruppe oder aus der Elektrodenbaugruppe, die Zelltemperatur, den Innendruck der Wandlerzelle, die Integrität der Wandlerzelle, das Freiwerden einer Substanz aus der Elektrodenbaugruppe, das Vorliegen einer Fremdsubstanz insbesondere aus der Umgebung der Wandlerzelle und/oder den Ladezustand ermöglicht, und/oder
• • eine Überführung der Wandlerzelle in einen anderen Betriebszustand nahelegt.

An operating parameter in the sense of the invention means a parameter, in particular of the converter cell, which in particular

• Allows a conclusion on the presence of a desired or predetermined operating state of the converter cell or its electrode assembly, and / or
• Allows a conclusion on the presence of an unplanned or undesired operating state of the converter cell or its electrode assembly, and / or
• • Can be detected by a sensor or sensor, the sensor at least temporarily provides a signal available, preferably an electrical voltage or an electric current, and / or
• • can be processed by a control device, in particular a cell control device, in particular can be compared to a target value, in particular can be linked to another detected parameter, and / or
• • Information about the cell voltage, the cell current, ie the current intensity of the electric current into the electrode assembly or from the electrode assembly, the cell temperature, the internal pressure of the converter cell, the integrity of the converter cell, the release of a substance from the electrode assembly, the presence of a foreign substance in particular the environment of the converter cell and / or the state of charge allows, and / or
• • suggests a transfer of the converter cell to another operating state.

The cell control device is provided to control at least one operating method of the converter cell, in particular the charging and / or discharging of the electrode assembly. The cell control device preferably monitors an operating state of the converter cell. The cell control device preferably initiates the transfer of the converter cell into a predetermined operating state. The cell control device preferably displays the state of the converter cell via a display device, in particular via at least one LED. This preferred embodiment has the advantage that the cell control device is arranged protected in the first housing part. This preferred embodiment offers the further advantage that the converter cell has its own cell control device for operating or monitoring the electrode assembly, which also remains on the converter cell when the converter cell is removed from a battery.

Preferably, the cell control device is provided to initiate the transfer of the converter cell in a "secured" state, wherein the charge of the converter cell in the secured state is at most half the charge capacity, in particular in the secure state, the cell voltage is a maximum of 3 volts. This preferred refinement has the advantage that the converter cell can also be converted into the secured state of the converter cell outside a battery combination.

According to a first preferred development, the functional device has a first near-field radio device, which is signal-connected to the cell control device. This first near-field radio device is used in particular for wireless communication with a higher-level battery control, in particular with its second near-field radio device. Preferably, the first near-field radio device is configured, in particular periodically to transmit a predetermined signal to a higher-level battery control. This development offers the advantage that the battery control can include the added converter cell to the predetermined signal to supply a consumer. This development offers the further advantage that the battery control of a converter cell can be isolated after the predetermined signal has failed.

According to a further preferred development, the functional device has two cell control connections and the first support element has two recesses in the region of these cell control connections. The converter cell can be connected to a data line or a data bus via the cell control connections. This preferred development offers the advantage that the cell control can communicate with the superordinate battery control via the two cell control connections.

Preferably, the converter cell is more preferred for receiving and / or delivering a charge of at least 3 amp hours [Ah], more preferably at least 5 Ah, more preferably at least 10 Ah, even more preferably at least 20 Ah, more preferably at least 50 Ah of at least 100 Ah, more preferably of at least 200 Ah, more preferably of at most 500 Ah configured. This embodiment offers the advantage of an improved service life of the consumer powered by the converter cell.

Preferably, the converter cell is configured to provide a current of at least 50A, more preferably at least 100A, more preferably at least 200A, more preferably at least 500A, even more preferably at most 1000A, especially for at least one hour. This embodiment offers the advantage of improved performance of the consumer powered by the converter cell.

Preferably, the converter cell for providing an electrical voltage, in particular terminal voltage, configured of at least 1.2 V, more preferably of at least 1.5 V, more preferably of at least 2 V, more preferably of at least 2.5 V, further preferably of at least 3V, more preferably at least 3.5V, more preferably at least 4V, more preferably at least 4.5V, more preferably at least 5V, even more preferably at least 5.5V, even more preferably at least 6V , more preferably at least 6.5 V, more preferably at least 7 V, more preferably at most 7.5 V, in particular for at least one hour. Preferably, the electrode assembly comprises lithium ions. This embodiment offers the advantage of an improved energy density of the converter cell.

Preferably, the transducer cell is operable within a temperature range of between -40 ° C and 100 ° C, more preferably between -20 ° C and 80 ° C, more preferably between -10 ° C and 60 ° C, even more preferably between 0 ° C and 40 ° C, especially during at least one hour. This embodiment offers the advantage of an unrestricted installation or use of the converter cell for supplying a consumer, in particular a motor vehicle or a stationary system or machine.

Preferably, the transducer cell has a gravimetric energy density of at least 50 Wh / kg, more preferably at least 100 Wh / kg, more preferably at least 200 Wh / kg, even more preferably less than 500 Wh / kg. Preferably, the electrode assembly comprises lithium ions. This embodiment offers the advantage of an improved energy density of the converter cell.

According to a preferred embodiment, the converter cell is provided for installation in a vehicle with at least one electric motor. Preferably, the converter cell is provided for supplying this electric motor. Particularly preferably, the converter cell is provided to supply at least temporarily an electric motor of a drive train of a hybrid or electric vehicle. This embodiment offers the advantage of improved supply of the electric motor.

According to a further preferred embodiment, the converter cell is intended for use in a stationary battery, in particular in a buffer memory, as a device battery, industrial battery or starter battery. Preferably, the charging capacity of the converter cell for these applications is at least 50 Ah. This embodiment offers the advantage of an improved supply of a stationary consumer, in particular a stationary mounted electric motor.

According to a first preferred embodiment, the at least one separator, which is not or only poorly electron-conducting, consists of an at least partially permeable carrier. The support is preferably coated on at least one side with an inorganic material. As at least partially permeable carrier, an organic material is preferably used, which is preferably designed as a non-woven fabric. The organic material, which preferably contains a polymer, and more preferably a polyethylene terephthalate (PET), is coated with an inorganic, preferably ion-conducting material, which is more preferably ion-conducting in a temperature range of -40 ° C to 200 ° C. The inorganic material preferably contains at least one compound from the group of oxides, phosphates, sulfates, titanates, silicates, aluminosilicates with at least one of the elements Zr, Al, Li, particularly preferably zirconium oxide. In particular zirconium oxide serves the material integrity, nanoporosity and flexibility of the separator. The inorganic, ion-conducting material preferably has particles with a largest diameter below 100 nm. This embodiment provides the Advantage that resistance of the electrode assembly at temperatures above 100 ° C is improved. Such a separator is marketed, for example, under the trade name "Separion" by Evonik AG in Germany.

According to a second preferred embodiment, the at least one separator, which is not or only poorly electron-conducting, but is conductive for ions, consists at least predominantly or completely of a ceramic, preferably of an oxide ceramic. This embodiment offers the advantage that durability of the electrode assembly is improved at temperatures above 100 ° C.

Preferred embodiments of the converter cell

A first preferred embodiment of the converter cell has this electrode assembly, a first and a second of these current conducting devices of different polarity and this cell housing. The electrode assembly is formed as a particular rechargeable electrode flat winding, in particular rechargeable electrode stack or transducer assembly with at least one electrode of the first and second polarity.

The Stromleiteinrichtungen have at least one or more of these Ableiterfahnen, each Stromleiteinrichtung the at least one Ableiterfahne is electrically connected to the current conductor in the cell housing. The first current conducting device, in particular its arrester lug, is electrically connected to the electrode of the first polarity. The second current conducting device, in particular its arrester lug, is electrically connected to the second polarity electrode. Furthermore, these current conducting devices each have one of these current conductors, which preferably extend into the surroundings of the converter cell, in particular for simplified electrical connection to a connection device. The Ableiterfahnen and the current collector at least one of these Stromleiteinrichtung are in particular cohesively connected.

The cell housing has the first housing part. The first housing part has the first support element, the second support element and at least one or more of these functional devices in each case with at least one or more of these functional elements. The support elements each have a particular fiber-interspersed first polymer material. The first support element delimits the at least one of these functional devices with respect to the surroundings of the converter cell. The second support element delimits the at least one of these functional devices with respect to the electrode assembly of the converter cell. The at least one functional device is arranged between the first and the second support element. The first support element, preferably also the second support element, is connected with at least one of these functional devices at least in regions, in particular in a materially bonded manner. The second support element has one or two of these Kontaktierungsausnehmungen, whereby the adjacent functional device is partially exposed to the electrode assembly. In its edge region, the first housing part has the second polymer material, which preferably surrounds the edge region of the first housing part. The current collector of at least the first current conducting device is guided by the second polymer material. Preferably, the current conductor of the second Stromleiteinrichtung is guided by the second polymer material. The second polymer material preferably connects the edge region of the first housing part and the current conductor of the first current conducting device, preferably also the current conductor of the second current conducting device, in a material-locking and / or gas-tight manner. Preferably, the first housing part has a receiving space, which at least partially accommodates the electrode assembly.

The at least one functional device is operatively connected to the electrode assembly, in particular electrically connected. The at least one functional device has one, preferably two, of these electrode connection regions, which serve for the electrical connection to the electrode assembly. Both current-conducting devices each have one of these contacting regions, wherein the contacting regions of the electrical connection serve with the at least one functional device, in particular via their electrode connection regions. The first electrode connecting region of the at least one functional device and the contacting region of the first current conducting device are electrically connected to one another, preferably cohesively, in particular in the region of the first contacting recess. Preferably, the second electrode connection region of the at least one functional device is electrically connected to the contacting region of the second current-conducting device, preferably cohesively, in particular in the region of the second contacting recess. Preferably, the at least one functional device is designed as a populated, in particular flexible printed circuit board. Particularly preferably, the functional device has this cell control device.

Furthermore, the cell housing has a second housing part. The second housing part has at least the first support element with a particular fiber-interspersed first polymer material. Together with the first housing part, the second housing part forms the cell housing around the electrode assembly. The second housing part preferably has the second polymer material in an edge region, which particularly preferably surrounds the edge region of the second housing part. Preferably, the current conductor of the second Stromleiteinrichtung is guided by the second polymer material. The second polymer material preferably connects the edge region of the second housing part and the current conductor of the second current conducting device in a material-locking and / or gas-tight manner. Preferably, the second housing part has a receiving space which at least partially accommodates the electrode assembly. Preferably, the cell housing surrounds the electrode assembly such that a frictional force between cell housing and electrode assembly counteracts their unwanted relative movement.

• • dass die Funktionseinrichtung durch das erste Tragelement gegen schädliche Einflüsse aus der Umgebung der Wandlerzelle geschützt ist,
• • schädlichen Folgen von Vibrationen aus dem Betrieb auf die Funktionseinrichtung begegnet ist,
• • die Funktionseinrichtung im Zellgehäuse im wesentlichen unverrückbar gehalten ist,
• • die Funktionseinrichtung insbesondere bei einem Unfall an der Wandlerzelle verbleibt,
• • die Zellsteuereinrichtung die Funktionen der Wandlerzelle, insbesondere von deren Elektrodenbaugruppe auch unabhängig von einer Batteriesteuerung steuert bzw. überwacht, insbesondere wenn die Wandlerzelle nicht Teil einer Batterie ist.

This preferred embodiment offers the advantages that

• • that the functional device is protected by the first support element against harmful influences from the environment of the converter cell,
• • has encountered harmful consequences of vibrations from the operation on the functional device,
• The functional device is kept substantially immovable in the cell housing,
• The functional device remains on the converter cell, in particular in the event of an accident,
• The cell control device controls or monitors the functions of the converter cell, in particular of its electrode assembly, independently of a battery control, in particular if the converter cell is not part of a battery.

According to a first preferred development of this preferred embodiment, the current conductor of the first current conducting device is guided by the second polymer material of the first housing part and the current conductor of the second current conducting device is guided by the second polymer material of the second housing part. This development has the advantage that the production of the first and the second housing part can be done with some identical manufacturing steps, whereby the cost of manufacturing is reduced.

According to a second preferred development of this preferred embodiment, both current conductors are guided through the second polymer material of the first housing part. Further, the receiving space of the first housing part is dimensioned such that the electrode assembly is substantially completely in place. This development has the advantage that the second housing part can remain essentially without receiving space, whereby the associated production cost is reduced. This development offers the further advantage that after inserting the electrode assembly in the receiving space, the electrical connections of Ableiterfahnen and Stromableitern can be made simplified, in particular due to improved accessibility.

According to a third preferred embodiment of this preferred embodiment, the first housing part and the second housing part are connected to one another via a hinge region. The hinge region extends along a respective limiting edge of the first housing part and the second housing part. Preferably, the hinge region has a smaller wall thickness than the regions of the housing parts that bound the electrode assembly. Particularly preferably, the hinge region is formed as a film hinge. This embodiment offers the advantage that the length of the edges of the cell housing to be sealed is reduced. This preferred development can be combined with the first or second preferred development.

According to a fourth preferred embodiment of this preferred embodiment, the first housing part and the second housing part are objected to by a frame. The housing parts are in particular materially connected to the frame. The frame essentially has four frame elements, which are arranged to one another corresponding to a rectangle. The frame defines a space which is provided for receiving the electrode assembly. Preferably, the frame is formed with the second polymer material, more preferably substantially entirely of the second polymer material. This preferred development has the advantage that the housing parts can each be formed without a receiving space. According to a preferred development, two of these Stromleiteinrichtungen extend through the frame at least partially into the environment. According to a further preferred development, at least one of these housing parts has one or two of these pole contact areas.

A second preferred embodiment of the converter cell essentially corresponds to the first preferred embodiment, but the cell housing has the third housing part instead of the second housing part.

The third housing part has over the first housing part on an increased thermal conductivity. The third housing part preferably has a metal, more preferably aluminum and / or copper. Preferably, the third housing part is plate-shaped. The third housing part has a first heat transfer area, with which the electrode assembly is in thermal contact and with which the electrode assembly can exchange heat energy, in particular for cooling the electrode assembly, if its temperature is above a permissible maximum temperature. Together with the first housing part, the second housing part forms the cell housing around the electrode assembly.

Preferably, both current conductors are guided through the second polymer material of the first housing part. Further, the receiving space of the first housing part is dimensioned such that the electrode assembly is substantially completely in place. This embodiment offers the further advantage that after inserting the electrode assembly in the receiving space, the electrical Compounds of Ableiterfahnen and Stromableitern can be made simplified, especially as a result of improved accessibility.

• • die Funktionseinrichtung durch das erste Tragelement gegen schädliche Einflüsse aus der Umgebung der Wandlerzelle geschützt ist,
• • schädlichen Folgen von Vibrationen aus dem Betrieb auf die Funktionseinrichtung begegnet ist,
• • die Funktionseinrichtung im Zellgehäuse im wesentlichen unverrückbar gehalten ist,
• • die Funktionseinrichtung insbesondere bei einem Unfall an der Wandlerzelle verbleibt,
• • die Zellsteuereinrichtung die Funktionen der Wandlerzelle, insbesondere von deren Elektrodenbaugruppe auch unabhängig von einer Batteriesteuerung steuert bzw. überwacht, insbesondere wenn die Wandlerzelle nicht Teil einer Batterie ist,
• • Wärmeenergie mit der Elektrodenbaugruppe über das dritte Gehäuseteil ausgetauscht werden kann,
• • einer beschleunigten Alterung der Elektrodenbaugruppe mittels Wärmeabfuhr in das dritte Gehäuseteil vorgebeugt werden kann.

This preferred embodiment offers the advantages that

• The functional device is protected by the first support element against harmful influences from the environment of the converter cell,
• • has encountered harmful consequences of vibrations from the operation on the functional device,
• The functional device is kept substantially immovable in the cell housing,
• The functional device remains on the converter cell, in particular in the event of an accident,
• The cell control device also controls or monitors the functions of the converter cell, in particular of its electrode assembly, independently of a battery control, in particular if the converter cell is not part of a battery,
• Heat energy can be exchanged with the electrode assembly via the third housing part,
• • Accelerated aging of the electrode assembly can be prevented by means of heat dissipation in the third housing part.

A third preferred embodiment of the converter cell has on this electrode assembly, a first and a second of these Stromleiteinrichtungen different polarity and this cell housing. The electrode assembly is formed as an electrode flat winding or electrode stack with at least one respective electrode of the first and second polarity.

The Stromleiteinrichtungen each have one of these Kontaktierungsbereiche and at least one or more of these Ableiterfahnen, wherein the contacting areas of the electrical connection with the functional device serve in particular via the electrode connection areas. The first current conducting device, in particular its arrester lug, is electrically connected to the electrode of the first polarity. The second current conducting device, in particular its arrester lug, is electrically connected to the second polarity electrode.

The cell housing has the first housing part. The first housing part has the first support element, the second support element and at least one or more of these functional devices in each case with at least one or more of these functional elements. The support elements each have a particular fiber-interspersed first polymer material. The first support element delimits the at least one of these functional devices with respect to the surroundings of the converter cell. The second support element delimits the at least one of these functional devices with respect to the electrode assembly of the converter cell. The at least one functional device is arranged between the first and the second support element. The first support element, preferably also the second support element, is connected with at least one of these functional devices at least in regions, in particular in a materially bonded manner. The first support element has one or two of these Polkontaktausnehmungen, each of which leaves a portion of the adjacent functional device relative to the environment of the converter cell. The second support element has one or two of these Kontaktierungsausnehmungen, whereby the adjacent functional device is partially exposed to the electrode assembly. In an edge region, the first housing part has the second polymer material which encloses the edge region of the first housing part. The second polymer material also connects the edge region of the first housing part to the first current-conducting device, preferably also to the second current-conducting device in a material-locking and / or gas-tight manner. The first current conducting device, preferably also the second current conducting device, extends from the second polymer material into the cell housing in the direction of the electrode assembly. Preferably, the first housing part has a receiving space, which at least partially accommodates the electrode assembly.

The at least one functional device is operatively connected to the electrode assembly, in particular electrically connected. The at least one functional device has one, preferably two, of these electrode connection regions, which serve for the electrical connection to the electrode assembly. Both current-conducting devices each have one of these contacting regions, wherein the contacting regions of the electrical connection serve with the at least one functional device, in particular via their electrode connection regions. The first electrode connecting region of the at least one functional device and the contacting region of the first current conducting device are electrically connected to one another, preferably cohesively, in particular in the region of the first contacting recess. Preferably, the second electrode connection region of the at least one functional device is electrically connected to the contacting region of the second current-conducting device, preferably cohesively, in particular in the region of the second contacting recess. Furthermore, the at least one functional device has one or two of these pole contact regions, which are exposed by the respective one of these Polkontaktausnehmungen of the first support member relative to the environment. The pole contact regions of the at least one functional device are in each case electrically connected to their electrode connection regions. Preferably, the Functional device designed as a populated, in particular flexible printed circuit board. The functional device particularly preferably has a cell control device.

Next, the cell housing on the second housing part. The second housing part has this first support element, preferably this second support element and preferably at least one of these functional devices. The first support element, preferably also the second support element, has in each case one, in particular fiber-penetrated, first polymer material. Preferably, the at least one functional device is arranged between the first and the second support element. Preferably, the support elements are connected to the at least one functional device at least in regions, in particular materially connected. Preferably, the first support element has one of these Polkontaktausnehmungen, which leaves a portion of the adjacent functional device relative to the environment of the converter cell. Preferably, the second support element has one of these Kontaktierungsausnehmungen, whereby the functional device is partially exposed to the electrode assembly. The functional device preferably has one of these electrode connection regions, which serves for the electrical connection to the electrode assembly, in particular via one of these contacting regions of the current-conducting devices. The functional device preferably has one of these pole contact regions, which is exposed to the environment by the pole contact recess of the first support element. The pole contact region of the functional device is preferably electrically connected to its electrode connection region. In an edge region, the second housing part has the second polymer material, which preferably surrounds the edge region of the second housing part. Preferably, the second polymer material connects the edge region of the second housing part and the second Stromleiteinrichtung cohesively and / or gas-tight. Preferably, the second housing part has a receiving space which at least partially accommodates the electrode assembly.

• • dass die Funktionseinrichtung durch das erste Tragelement gegen schädliche Einflüsse aus der Umgebung der Wandlerzelle geschützt ist,
• • schädlichen Folgen von Vibrationen aus dem Betrieb auf die Funktionseinrichtung begegnet ist,
• • die Funktionseinrichtung im Zellgehäuse im wesentlichen unverrückbar gehalten ist,
• • die Funktionseinrichtung insbesondere bei einem Unfall an der Wandlerzelle verbleibt,
• • die Stromleiteinrichtungen je ohne Stromableiter ausgebildet werden können.

This preferred embodiment offers the advantages that

• • that the functional device is protected by the first support element against harmful influences from the environment of the converter cell,
• • has encountered harmful consequences of vibrations from the operation on the functional device,
• The functional device is kept substantially immovable in the cell housing,
• The functional device remains on the converter cell, in particular in the event of an accident,
• • the current conducting devices can each be designed without current conductors.

According to a first preferred development of this preferred embodiment, the at least one functional device of the first housing part has two of these pole contact regions and two of these electrode connection regions, each having a different polarity. The first support element of the first housing part has two of these Polkontaktausnehmungen. The second support element of the first housing part has two of these Kontaktierungsausnehmungen. This preferred development offers the advantage that energy can be exchanged with the electrode assembly via the pole contact regions of the first housing part. This preferred development offers the further advantage that the Stromleiteinrichtungen can be formed without a first area.

According to a second preferred development of this preferred embodiment, the at least one functional device of the first housing part has one of these pole contact regions and one of these electrode connection regions. The first support element of the first housing part has one of these Polkontaktausnehmungen. The second support element of the first housing part has one of these Kontaktierungsausnehmungen. Furthermore, the at least one functional device of the second housing part has one of these pole contact regions and one of these electrode connection regions. The first support element of the second housing part has one of these Polkontaktausnehmungen. The second support element of the second housing part has one of these Kontaktierungsausnehmungen. This preferred development offers the advantage that energy can be exchanged with the electrode assembly via the pole contact regions of the first and second housing parts. This preferred development offers the further advantage that the Stromleiteinrichtungen can be formed without a first area.

Preferably, these housing parts are connected by this hinge region or by this frame, according to the third or fourth preferred embodiment of the first preferred embodiment of the converter cell.

A fourth preferred embodiment substantially corresponds to one of the aforementioned preferred embodiments of the converter cell, wherein the functional device has one or more of these fluid passages and the electrode assembly is formed according to the aforementioned third preferred embodiment. Thus, one of the electrodes of the electrode assembly can receive oxygen through one or more of these fluid passages when the transducer cell is discharged. Thus, one of the electrodes of the electrode assembly may emit oxygen through one or more of these fluid passages when the converter cell is charged. Preferably, this at least one fluid passage is arranged in a region of the cell housing which is not covered by an adjacent converter cell. Preferably, the first support element in the region of the fluid passage on a recess through which the oxygen can occur. Preferably, at least one of the electrodes of the electrode assembly comprises zinc, in particular as Zn ⁰ , or lithium, in particular as Li ⁰ . This preferred embodiment offers the advantage of an increased energy density or power density of the converter cell.

Preferably, at least a first of these fluid passages is connected to a fluid delivery device not associated with the converter cell. Particularly preferably, a second of these fluid passages is fluidically connected to this first fluid passage. This preferred embodiment offers the advantage that the exchange of air or oxygen with the electrode assembly is improved.

Preferably, at least one of these gas sensors is arranged with respect to one of these fluid passages so that this gas sensor can detect the amount of gas flow through this fluid passage. Preferably, this at least one gas sensor is designed to provide the cell control device at least temporarily with a measured value, this measured value being proportional to the magnitude of the gas flow. This preferred embodiment offers the advantage that the cell control device is capable of monitoring the gas flow exchanged with the electrode assembly.

According to a first preferred embodiment, at least one of these fluid passages is formed with a gas-permeable, but water-impermeable or impermeable membrane membrane. This preferred development offers the advantage of a simplified embodiment of the converter cell.

According to a second preferred development, at least one of these fluid passages is formed with at least one closable and controllable opening. Preferably, this at least one opening can be controlled, opened and / or closed by the cell control device, in particular depending on the electrical energy or power demanded of the converter cell. This at least one fluid passage preferably has a plurality of these closable openings, with some of these openings remaining closed, in particular in the partial load operation of the converter cell.

Preferably, these housing parts are connected by this hinge region or by this frame, according to the third or fourth preferred embodiment of the first preferred embodiment of the converter cell.

Preferably, a battery has at least two converter cells according to the invention or their preferred embodiments. Furthermore, the battery has a battery control and preferably a second near-field radio device. Preferably, the second near-field radio is signal-connected to one of these first near-field radio devices of one of these converter cells.

Particularly preferably, the second near-field radio is provided to temporarily transmit a predetermined first signal, after which a first of these wireless devices responds with a predetermined signal. This embodiment has the advantage that the functionality of converter cells of the battery can be queried with the second near-field radio device.

Particularly preferably, the battery controller is provided, after receiving a predetermined second signal from one of these first near-field radio devices of one of the converter cells by the second near-field radio device, to integrate this converter cell into the supply of a connected consumer. This embodiment offers the advantage that the replacement of a converter cell is simplified.

Preferably, the at least two converter cells are each formed with one of these first and second layer regions of different wall thickness. These layer regions are matched to one another such that at least one channel for a temperature control medium is formed between the first converter cell and the second converter cell, in particular between the cell housings thereof. Particularly preferably, the channel extends between one of these first layer regions of the first converter cell and one of these second layer regions of the second converter cell. This refinement has the advantage that the tempering medium, which flows along the channel, can exchange thermal energy with at least one of these two converter cells, in particular for heat removal from at least one of these two converter cells.

Method for producing an electrochemical energy conversion device

In the following, a method according to the invention for producing an electrochemical energy conversion device, also referred to below as a converter cell, will be described. In particular, the converter cell is formed as described above. The converter cell produced by this method according to the invention has one of these Electrode assemblies, at least one or two of these Stromleiteinrichtungen and one of these cell housing with one of these first housing parts, preferably also with one of these second or third housing parts. The electrode assembly has at least two electrodes of different polarity. At least two of these Stromleiteinrichtungen are each connected to an electrode of different polarity. Preferably, at least one or two of these Stromleiteinrichtungen each have at least one or more Ableiterfahnen, particularly preferably in each case a current conductor. Preferably, at least one or two of these Stromleiteinrichtungen each have a contact area. The first housing part has a first support element and at least one or more of these functional devices each having at least one or more of these functional elements. The first support element faces the surroundings of the converter cell. The first support element has a particular fiber-interspersed first polymer material. The at least one functional device is connected to the first support element at least partially in particular cohesively. At least one of these functional devices is operatively connected to the electrode assembly, preferably electrically connected. The first housing part preferably has the second support element, which is arranged between the functional devices and the electrode assembly and is particularly preferably connected to one of these functional devices in a materially bonded manner. The first housing part preferably has a second polymer material in an edge region. The production method according to the invention is characterized by at least one of the following steps:
S1 generating at least one or more of these functional devices, each having at least one or more of these functional elements, wherein preferably at least one or two of these functional elements is designed as an electrode connection region or as a pole contact region, preferably subsequent supply of at least one or more of these functional devices to a first reservoir,
S1 'generating at least one or more of these functional devices, each having at least one or more of these functional elements, wherein preferably at least one or two of these functional elements is formed as an electrode connection region or as Polkontaktbereich, wherein is introduced into at least one of these functional devices: a foam, a cavity structure, in particular a honeycomb structure, at least one cavity for a tempering medium, a filler with the ability to phase transition and / or a chemically reactive and / or flame retardant filler, preferably then supplying at least one or more of these functional devices to a first storage,
S1 '' generating at least one or more of these functional devices, each having at least one or more of these functional elements, wherein preferably at least one or two of these functional elements as electrode connection area or Polkontaktbereich is formed, wherein at least one or more of these functional devices with a first layer region having a first wall thickness and a second layer region having a second wall thickness is produced, wherein the fraction of the second wall thickness above the first wall thickness has a predetermined value less than 1, particularly preferably the first layer region has a lower density than the second layer region, preferably subsequent feeding of at least one or several of these functional devices to a first storage,
S2 provide, preferably from a second storage, one of these first support elements, which has a particular fiber-interspersed first polymer material, which preferably has one or two of these Polkontaktausnehmungen, wherein one or two of Polkontaktausnehmungen adjacent to each of these Polkontaktbereiche, in particular after step S1,
S2 placing one of these first support elements on another of these first support elements, in particular after step S2,
S3 placing at least one or more of these functional devices or functional modules, preferably from the first storage, on the first support element or another of these functional devices, preferably as a functional device at least one populated, in particular flexible printed circuit board is placed on the first support element, wherein particularly preferably Printed circuit board has the functional elements according to the first preferred embodiment of the functional device, in particular after step S2,
S4 in particular cohesively connecting the first support element with at least one of these functional devices, whereupon a layer composite is formed, preferably under the influence of heat, preferably by means of an isotactic or continuous press, in particular after step S3,
S5 placing a second support element on one of these functional devices, preferably of a third storage, wherein the second support element comprises a particular fiber interspersed first polymer material, wherein preferably the second support element has one or two Kontaktierungsausnehmungen, in particular after step S3,
S6 connecting the second support element to one of these functional devices, in particular to the adjacent functional device, preferably under the influence of heat, preferably by means of an isotactic or continuous press, in particular after step S5,
S7 storing the layer composite in a fourth storage, in particular after step S4,
S8 removing the layer composite, in particular from the fourth storage, wherein the layer composite has at least the first support element, one or more of these functional devices with at least one or more of these functional elements and preferably the second support element, in particular after step S7,
S9 cutting to length at least one essentially planar molded part blank of the layer composite, preferably with a separating device, in particular after step S8,
S10 heating of the substantially planar molded part blank, preferably up to a working temperature which corresponds at least to the softening temperature of the first polymer material of the first support element, in particular in the machining device, in particular after step S9,
S11 supplying the essentially planar molded part blank into a processing device, in particular into a shaping tool, in particular after step S10,
S12 insertion of at least one or more of these current conducting devices, preferably insertion of at least one or more of these current conductors, into the processing device, in particular into the shaping tool, in particular to the substantially planar molded part blank, in particular after step S11,
S13 forming a receiving space for the electrode assembly in the molding blank, in particular in the processing device, in particular by means of deformation of the particular heated molding blank with a body, wherein the receiving space is adapted to the shape of the electrode assembly, which preferably corresponds substantially to the shape of the electrode assembly, which is particularly preferred is generated by closing the mold, in particular after step S12,
S14 supplying a particular flowable second polymer material, preferably under the influence of heat and preferably with a differential pressure to the surrounding air pressure to the molding blank in the processing device, in particular in the forming tool, wherein the second polymer material is disposed in the edge region of the molding blank, in particular at a working temperature, which at least the Softening temperature of the second polymer material corresponds, preferably each one of these contacting areas remains free at least one or two of these Stromleiteinrichtungen, in particular after one of the steps S10, S11, S12 or S13,
Solidifying the deformed molding blank, preferably by cooling to a removal temperature which is in particular below the softening temperature of the first polymer material, which is in particular below the softening temperature of the second polymer material, in particular after step S14,
S16 removing the in particular deformed molding blank, hereinafter also referred to as the first housing part, from the machining device, in particular at a removal temperature which is below the softening temperature of the first polymer material, in particular after one of the steps S14 or S15,
S17 providing the first housing part or the in particular deformed molding blank, preferably in a machining device, which serves in particular for forming the cell housing around the electrode assembly, in particular after step S16,
S18 electrical, in particular cohesive connecting at least one or more of these Ableitfahnen with at least one or more of these electrodes of the electrode assembly, in particular by means of a joining method, preferably by means of a friction welding process, particularly preferably by means of ultrasonic welding, in particular after step S17 or S19,
S19 supplying the electrode assembly, which preferably has at least one or more of these Ableitfahnen, to the first housing part preferably in the processing device, in particular insertion of the electrode assembly in the receiving space of the first housing part, in particular after step S17,
S20 electrically connecting the electrode assembly to at least one or more of these current conducting devices, in particular by means of a joining method, preferably by means of a friction welding method, particularly preferably by means of ultrasonic welding, in particular after step S19,
S21 electrically connecting at least one or more of these arrester lugs to one of these current conductors, which are associated with the same current conducting device, in particular by means of a joining method, preferably by means of a friction welding method, particularly preferably by means of ultrasonic welding, in particular after step S19,
S22 electrically connecting from the contacting region of at least one or more of these current conducting devices to at least one or more of these electrode connection regions of at least one of these functional devices of the first housing part, in particular in the region of one of these contacting recesses of the second supporting element of the first housing part, in particular by means of a joining process, preferably by means of a friction welding process, particularly preferably by means of ultrasonic welding, in particular after step S11, in particular before step S26,
S23 supplying the second housing part to the first housing part, wherein preferably the second housing part has the second polymer material in an edge region, in particular after step S22,
S24 supplying the third housing part to the first housing part, wherein a first heat transfer area of the third housing part is preferably arranged adjacent to the electrode assembly, particularly preferably brought into thermal contact with the electrode assembly, in particular after step S22,
S25 heating in particular of the edge region of the particular first housing part to a working temperature which corresponds at least to the softening temperature of the second polymer material,
S26 in particular cohesively connecting the second housing part or the third housing part with the first housing part, in particular at a working temperature which corresponds at least to the softening temperature of the second polymer material, wherein preferably an edge region of the first housing part is connected to the second housing part or the third housing part, in particular Step S25,
S26 'in particular cohesively connecting the second housing part or the third housing part with the first housing part, in particular using a sealant and / or adhesive, wherein preferably an edge region of the first housing part is connected to the second housing part or the third housing part, in particular after step S25 .
S26 '' in particular cohesively connecting the second housing part or the third housing part with the first housing part, preferably with supplying a particular flowable second polymer material, preferably under the influence of heat and at a pressure differential with respect to the environment of the processing device, in particular in the forming tool, wherein the second polymer material in Edge region of the at least one of the housing part is arranged, in particular at a temperature which corresponds to at least the softening temperature of the second polymer material, preferably each one of these contacting at least one or two of this Stromleiteinrichtung and remains free, wherein preferably an edge region of the first housing part with the second housing part or the third housing part is connected, in particular after step S25,
S27 combining several of these functional elements in one of these functional devices, whereby in particular a functional module is formed, in particular before step S3,
S28 lowering the air pressure in the vicinity of the first housing part, in particular before step S26, whereupon the higher normal pressure in the vicinity of the cell housing closed after step S26 causes a frictional force between the cell housing and the electrode assembly, which counteracts an undesired relative movement of the cell housing and electrode assembly.

For the purposes of the invention, a differential pressure with respect to the surroundings of the processing device in step S26 "is understood to mean that the second polymer material has a higher static pressure when it is fed into the processing device than the static pressure in the processing device. According to a preferred embodiment of step S26 ", the second polymer material is subjected to an overpressure with respect to the surroundings of the processing device. According to a further preferred embodiment of step S26 ", a negative pressure with respect to the surroundings of the processing device is present in the region of the housing parts inserted into the processing device. Both pressure differences serve to supply the second polymer material into the processing device. Both embodiments have the advantage that the filling of provided for the second polymer material areas of the processing device when connecting the inserted housing parts is improved.

The manufacturing method according to the invention has the advantage that the cell housing or its first housing part can be produced with a predetermined flexural rigidity and / or a predetermined ability to absorb energy with respect to a foreign body acting on the converter cell from the environment, whereby in particular the mechanical resistance of the converter cell is improved. Step S2 is preferably carried out several times prior to step S4, whereupon a plurality of first support elements are connected to the functional device for the layer composite or molded part blank.

The manufacturing method according to the invention has the advantage that the cell housing or its first housing part, which has a predetermined bending stiffness and / or a predetermined ability to absorb energy within the operating temperature range with respect to a foreign body acting on the converter cell from the environment, produced at the operating temperature with less energy can be.

The manufacturing method according to the invention has the advantage that the first support element improves the cohesion of the functional device, whereby the resistance of the converter cell to vibrations or the functionality of the converter cell is improved in vibration.

The manufacturing method according to the invention offers the advantage that it is possible to dispense with separate, stiffening components, in particular in contrast to converter cells with a foil-like cell housing.

The manufacturing method according to the invention offers the advantage that after the functional device, the layer composite and / or the first housing part have been formed, the later production steps are simplified. This saves manufacturing costs. The production process according to the invention offers the further advantage that the yield and quality of the preparation are improved.

The manufacturing method according to the invention has the advantage that the cell housing can be easily and inexpensively adapted to electrode assemblies of different charging capacities, in particular by the receiving space in the first housing part can be made only immediately before inserting the electrode assembly. So storage costs are reducible.

Preferred embodiments of the aforementioned inventive method for producing a converter cell

• • S17, S19, S20, S23 und S26, wobei das Zellgehäuse eines dieser zweiten Gehäuseteile aufweist, oder
• • S17, S19, S20, S24 und S26, wobei das Zellgehäuse eines dieser dritten Gehäuseteile aufweist.

A first preferred embodiment of the aforementioned method according to the invention for producing a converter cell, in particular for closing the cell housing around the electrode assembly, is characterized by the steps:

• S17, S19, S20, S23 and S26, wherein the cell housing has one of these second housing parts, or
• • S17, S19, S20, S24 and S26, wherein the cell housing has one of these third housing parts.

This preferred embodiment of the method has the advantage that at least one or more of these functional devices of the first housing part are arranged in particular protected within the cell housing.

Preferably, the method also includes step S25. This preferred embodiment has the advantage that the cohesive connection of the heated edge region with the second polymer material is improved.

Preferably, step S26 is replaced by step S26 '. This preferred embodiment has the advantage that the connection of this housing part can take place at a temperature below the softening temperature of the first or second polymer material, more preferably at room temperature, whereby energy can be saved.

Preferably, step S26 is replaced by step S26 ". This preferred embodiment has the advantage that the filling of provided for the second polymer material areas of the processing device when connecting the inserted housing parts is improved.

A15 A second preferred embodiment of the aforementioned method according to the invention for producing a converter cell, in particular for producing the first housing part, is characterized by the steps: S11, S12, S14, S15, S16. This embodiment of the method preferably has step S10 for heating the molded part blank. Preferably, this embodiment of the method comprises step S13 for forming the receiving space. This preferred embodiment of the method has the advantage that at least one or more of these Stromleiteinrichtungen is enclosed by the second polymer material in particular gas-tight, which in particular an exchange of substances between the interior of the cell housing and the environment of the converter cell is counteracted.

A third preferred embodiment of the above-mentioned method according to the invention for producing a converter cell, in particular for producing a layer composite, the laminate having the first support element, at least one or more of these functional devices and preferably the second support element, is characterized by the steps: S2, S3, S4 , This preferred embodiment of the method offers the advantage that a connection in particular material-locking connection between the first support member and at least one of these functional devices is generated, whereby the cohesion of this functional device is improved, especially in shock. Preferably, at least one populated, in particular flexible printed circuit board is placed on the first support element under step S3 as a functional device or functional module. In this case, this circuit board on the functional elements according to the first preferred embodiment of the functional device. This preferred embodiment of the method has the advantage that in the functional device, which is connected to the first support member or in particular captive part of the cell housing, numerous functions for controlling or monitoring the electrode assembly can be realized.

This embodiment of the method preferably also has the step S2 'after step S2. In this case, two first support layers are placed on each other. This preferred embodiment has the advantage that the wall thickness of the layer composite is increased, whereby an improved mechanical protection of an adjacent functional device is achieved.

Preferably, this embodiment of the method also has the steps S5 and S6. Particularly preferably, step S5 takes place before the simultaneously executed steps S4 and S6. This preferred embodiment offers the advantage that the Housing part is stiffened with at least one of these second support elements. This preferred embodiment has the advantage that this functional device is electrically insulated from the electrode assembly by this second support element.

This embodiment of the method preferably also has one of the steps S1, S1 'or S1 ", in particular prior to step S2, particularly preferably with step S27. This preferred embodiment offers the advantage that the directly preceding generation also saves storage costs for the functional device.

According to a preferred development of this preferred embodiment, the layer composite is produced with different wall thicknesses. In this case, areas for the first housing part, the second housing part and a hinge area are produced. The hinge region is produced with a smaller wall thickness than the regions for the housing parts and preferably without a functional device, preferably in that the regions for the housing parts receive additional base layers or the hinge region has only one of these first base layers. The hinge region is arranged between the region for the first housing part and the region for the second housing part. Later, the molding blank is cut to have at a first end this area for the first housing part, at an opposite end this area for the second housing part and lying therebetween the hinge area. This development has the advantage that the length of the edges to be sealed of the particular cuboid cell housing is reduced.

For closing the cell housing or when connecting the first housing part to the second housing part, the hinge area is brought to a working temperature above the softening temperature of the first polymer material and bent over in such a way that the area for the first housing part is opposite the area for the second housing part. Subsequently, in particular after the connection of the housing parts around the electrode assembly, the hinge region is brought to a removal temperature, in particular below the softening temperature of the first polymer material.

• • S11, wobei einer dieser Formteilrohlinge mit einer dieser Funktionseinrichtungen einer Bearbeitungseinrichtung zugeführt wird, wobei diese Funktionseinrichtung zumindest einen dieser Elektrodenverbindungsbereiche aufweist,
• • S12, wobei eine oder vorzugsweise zwei dieser Stromleiteinrichtungen bzw. deren Stromableiter zu diesem Formteilrohling in das Formgebungswerkzeug gegeben und dort im Randbereich des Formteilrohlings bzw. des künftigen ersten Gehäuseteils angeordnet werden,
• • vorzugsweise S22, wobei zumindest einer dieser Kontaktierungsbereiche einer dieser Stromleiteinrichtungen bzw. eines dieser Stromableiter mit zumindest einem dieser Elektrodenverbindungsbereiche der Funktionseinrichtung elektrisch verbunden wird,
• • S10, S13 und S14, wobei vorzugsweise S10 zeitlich vor S13, vorzugsweise S13 zeitgleich mit S14 ausgeführt wird, worauf der Formteilrohling einen Aufnahmeraum für die Elektrodenbaugruppe erhält und zweites Polymermaterial derart im Randbereich des Formteilrohlings angeordnet ist, dass die eingelegten Stromleiteinrichtungen bzw. deren Stromableiter insbesondere gasdicht von dem zweiten Polymermaterial umschlossen sind,
• • S15, worauf das erweichte erste Polymermaterial des ersten Tragelements wieder an Festigkeit gewinnt und das resultierende erste Gehäuseteil dem Formgebungswerkzeug entnommen werden kann,
• • S18, zur Ausrüstung der Elektrodenbaugruppe mit zumindest einer oder mehrerer dieser Ableiterfahnen, wobei die Ableiterfahnen mit zumindest einer dieser Elektroden erster Polarität oder mit zumindest dieser der Elektroden zweiter Polarität verbunden werden,
• • S17 und S19, womit die Elektrodenbaugruppe dem in der Bearbeitungseinrichtung bereitgestellten ersten Gehäuseteil zugeführt wird, vorzugsweise im Aufnahmeraum des ersten Gehäuseteil angeordnet wird,
• • S21, wobei diese Ableiterfahnen, welche mit diesen Elektroden erster Polarität verbunden sind, und dieser Ableiterfahnen, welche mit diesen Elektroden zweiter Polarität verbunden sind, mit verschiedenen Stromableitern elektrisch verbunden werden, insbesondere mittels eines Fügeverfahrens,
• • S23, wobei das zweite Gehäuseteil zu dem ersten Gehäuseteil und zu der Elektrodenbaugruppe in die Bearbeitungseinrichtung eingelegt wird, wobei zumindest einer dieser Randbereiche des ersten Gehäuseteils und zumindest einem dieser Randbereich des zweiten Gehäuseteils zueinander benachbart angeordnet werden,
• • vorzugsweise S25, wobei insbesondere der Randbereich des insbesondere ersten Gehäuseteils erwärmt wird auf eine Arbeitstemperatur, welche wenigstens der Erweichungstemperatur des zweiten Polymermaterials entspricht,
• • S26, wobei insbesondere die Randbereiche, vorzugsweise die zweiten Polymermaterialien des ersten Gehäuseteils und des zweiten Gehäuseteils insbesondere stoffschlüssig miteinander verbunden werden, insbesondere bei einer Arbeitstemperatur, welche wenigstens der Erweichungstemperatur des zweiten Polymermaterials entspricht.

A fourth preferred embodiment of the aforementioned method according to the invention for producing a converter cell, in particular for producing the first preferred development of the first preferred embodiment of the converter cell, is characterized by the steps:

• S11, wherein one of these preform blanks is supplied with one of these functional devices to a processing device, this functional device having at least one of these electrode connection regions,
• S12, wherein one or preferably two of these current conducting devices or their current conductors are fed to this preform blank into the forming tool and are arranged there in the edge area of the preform blank or of the future first housing part,
• Preferably S22, wherein at least one of these contacting regions of one of these current conducting devices or one of these current conductors is electrically connected to at least one of these electrode connecting regions of the functional device,
• S10, S13 and S14, wherein preferably S10 is carried out in time before S13, preferably S13 at the same time as S14, whereupon the molding blank receives a receiving space for the electrode assembly and second polymer material is arranged in the edge region of the molding blank, that the inserted Stromleiteinrichtungen or their current conductor are enclosed in a gas-tight manner by the second polymer material,
• S15, whereupon the softened first polymer material of the first support element regains strength and the resulting first housing part can be removed from the forming tool,
• S18, for equipping the electrode assembly with at least one or more of these arrester tabs, the arrester tabs being connected to at least one of said first polarity electrodes or to at least one of said second polarity electrodes,
• S17 and S19, with which the electrode assembly is supplied to the first housing part provided in the processing device, preferably being arranged in the receiving space of the first housing part,
• S21, these arrester tabs, which are connected to these first-polarity electrodes, and these arrester tabs, which are connected to these second-polarity electrodes, being electrically connected to different current conductors, in particular by means of a joining method,
• S23, wherein the second housing part is inserted to the first housing part and the electrode assembly in the processing device, wherein at least one of these edge regions of the first housing part and at least one of these edge region of the second housing part are arranged adjacent to each other,
• Preferably S25, wherein in particular the edge region of the in particular first housing part is heated to a working temperature, which corresponds at least to the softening temperature of the second polymer material,
• S26, wherein in particular the edge regions, preferably the second polymer materials of the first housing part and the second housing part are in particular materially interconnected, in particular at a working temperature which corresponds at least to the softening temperature of the second polymer material.

Further advantages, features and applications of the present invention will become apparent from the following description taken in conjunction with the figures. It shows:

1 schematically details of a preferred embodiment of an electrochemical energy conversion device according to the invention,

2 schematically two different laminations for first housing parts,

3 schematic sections through first housing parts with different functional elements or first and second layer areas,

4 a schematic view of a first housing part with first and second layer regions,

5 FIG. 2 schematically a section through a first housing part with a metallic insert, FIG.

6 a schematic section through a preferred embodiment of a converter cell,

7 1 schematically a processing device for producing a layer composite for a first housing part,

8th 1 schematically a processing device for producing a layer composite for a specific embodiment of a first housing part, one of these functional devices being designed as a populated, flexible printed circuit board,

9 schematically the cutting to length of preform blanks from a prepared layer composite,

10 1 is a schematic view of the production of a first housing part from a preform blank with supply of a second polymer material in the edge area, with formation of a receiving space for an electrode assembly, with encapsulation of current conductors and from the edge area of the preform blank, in a processing device,

11 different views and sections of a first housing part with receiving space,

12 1 schematically a converter cell with a two-part cell housing, wherein the first housing part is designed as a cup and the second housing part as a lid,

13 schematically a converter cell with a two-part cell housing, wherein the housing parts are spaced by a frame of second polymer material

14 schematically further preferred embodiments of converter cells, each with a two-part cell housing and each with two current conductors, which extend into the environment of the converter cell,

15 schematically further preferred embodiments of converter cells, each with a two-part cell housing and with Stromleiteinrichtungen, which essentially complete each with a lateral surface of the cell housing,

16 schematically further preferred embodiments of converter cells each having a two-part cell housing, each with transducer assembly and two fluid passages.

1 schematically shows details of a preferred embodiment of an inventive electrochemical energy conversion device or converter cell 1 with a first housing part 6 , Advantageously, the first support element 7 and the second support element 7a designed as a base course.

1a shows that the first housing part 6 in an edge region with a second polymer material 21 is overmoulded. A current conductor 14 is of the second polymer material 21 in particular gas-tight encapsulated and in particular substantially immovable with the first housing part 6 connected. The first housing part 6 has the first support element 7 , the second support element 7a and a functional device 8th on, wherein the functional device 8th the supporting elements 7 . 7a objected.

1b shows that arrester lugs 13 with the current collector 14 are welded. The arrester flags 13 are also electrically connected to electrodes of the first polarity of an electrode assembly, not shown, in particular cohesively. This electrical connection has been produced after the electrode assembly, not shown, in the first housing part 6 has been inserted and before the cell housing is closed.

1c shows the first housing part 6 and a second housing part 6a whose edge areas each with the second polymer material 21 are overmoulded. Each is a current conductor 14 . 14a with one of the housing parts 6 . 6a by second polymer materials 21 connected. With the current conductors 14 . 14a are groups of arrester lugs 13 . 13a welded. These groups of arrester flags 13 . 13a are electrically connected to electrodes of different polarity of the same electrode assembly, not shown. This is the first current conductor 14 a different polarity than the second current collector 14a , The cell case is not closed yet.

1d schematically shows a detail of the converter cell 1 after the cell case 5 by materially connecting the first housing part 6 with the second housing part 6a has been closed. In the process, second polymer materials became 21 the edge areas of the housing parts 6 . 6a merged together. From the cell case 5 extend the current collector 14 . 14a , The current conductors also extend 14 . 14a in the cell housing 5 ,

2 shows schematically two different layer dressings 18 . 18a for a first housing part. Advantageously, the first support element 7 and the second support element 7a designed as a base course.

The layer composite 18 has two support elements 7 . 7a on which four functional devices 8th . 8a . 8b . 8c surround or enclose. The individual functional devices fulfill various tasks and have different functional elements for this purpose. The second support element 7a has an arrangement of recesses or holes, which a substance in particular from the electrode assembly, not shown, the passage to the fourth functional device 8c enable. The fourth functional device 8c comprises a pressure sensor, a thermocouple and a sensor for hydrogen fluoride, wherein the sensors are not shown. The third functional device 8b isolates the second functional device 8a from the electrical assembly chemically and electrically. The third functional device 8b but has functional elements for signal exchange between the second functional device 8a and the said sensors. The second functional device 8a has a cell control device, not shown, which processes signals of said sensors and controls the operation of the electrode assembly, also not shown. The first functional device 8th is as a cotton with alum as a flame retardant filler and serves to protect the underlying second functional device 8a ,

The layer composite 18a has only one functional device 8th on. Here, the pressure sensor, thermocouple, and cell controller are part of the same functional device 8th ,

3 shows schematic sections through various embodiments of the first housing part 6 with various functional devices 8th . 8a . 8b . 8c and first and second layer regions 10 . 10a , The functional device 8th from the first support element 7 and the second support member 7a surround. Advantageously, the first support element 7 and the second support element 7a designed as a base course. The functional device 8th has two layer areas 10 . 10a on, wherein the first layer area 10 has a greater wall thickness than the second layer region 10a , The functional device 8a has several first layer areas 10 on, in which run channels for a tempering medium. The functional device 8b has several first layer areas 10 on which are filled with a foam. This is the functional device 8a filled with an expandable filler, which forms cavities upon supply of an activation energy. The functional device 8c has a cavity structure, in particular a honeycomb structure, which is the weight savings with increased bending stiffness of the first housing part 6 serves.

4 shows a schematic view of a first housing part 6 with first layer areas 10 and second layer regions 10a the functional device. The first layer areas 10 , also marked by the letter "H", have a greater wall thickness than the second layer areas 10a , also marked by the letter "L". Advantageously, the first support element 7 and the second support element 7a designed as a base course.

5 schematically shows a section through a first housing part 6 with a particular metallic insert 22 , which is located both in the functional device 8th as well as outside this functional device extends. Simplified, the adjacent support elements are not shown. The depositor 22 serves to stiffen the first housing part 6 , In particular, the increase in the bending stiffness of the first housing part 6 , The depositor 22 is profiled for increased flexural rigidity.

6 shows a schematic section through a preferred embodiment of a converter cell. An electrode assembly 2 is inserted in a first housing part and with current conductors 14 . 14a electrically connected. Not shown are tabs, which is the electrical connection between a current conductor 14 . 14a and an electrode of the electrode assembly 2 serve. Both current conductors 14 . 14a have contact areas 12 . 12a on. Of the first housing part is only the second polymer material 21 shown. Supporting elements and functional devices are not shown, so that the contacting areas 12 . 12a are more recognizable. The contact areas 12 . 12a extend from the second polymer material 21 in the direction of the functional device, not shown. The contact areas 12 . 12a serve the electrical connection, in particular the supply of the functional device, not shown.

7 schematically shows a processing device 2 for producing a layer composite 18 for a first housing part. From various inventories become the first support element 7 , the second support element 7a and two functional devices 8th . 8a settled. Advantageously, the first support element 7 and the second support element 7a designed as a base course. These layers become the processing device 20 fed here trained as a double belt press 20 , In particular, under the influence of heat, the superimposed layers in the double belt press 20 with each other to the layer composite 18 connected. The layer composite 18 becomes a stock 19 fed.

8th schematically shows a processing device 20 for producing a layer composite 18 for a preferred embodiment of a first housing part, with a plurality of functional devices, wherein one of these functional devices as a populated, flexible printed circuit board 8a is trained. First, the first functional device 8th settled. From a gripper become the printed circuit boards 8a individually to the first functional device 8th placed, preferably with a minimum distance between two circuit boards. There will be another functional device 8b as well as two support elements 7 . 7a settled. Advantageously, the first support element 7 and the second support element 7a designed as a base course. The circuit board 8a is from the support elements 7 . 7a enclosed before the layers of the double belt press 20 be supplied. In the double belt press 20 In particular, under the influence of heat, the layer composite 18 generated. The layer composite 18 becomes the stocking 19 fed.

9 shows schematically the cutting to length of molded blanks 23 from a prepared layer composite 18 , in particular by means of a separating device 20 , If one of the functional devices is designed as a printed circuit board, the layer composite 18 separated between two such boards.

10 shows schematically the production of a first housing part 6 from a molding blank 23 with supply of a second polymer material 21 in the edge region of the molding blank 23 or the first housing part 6 , with training of a recording room 11 for an electrode assembly 2 , with encapsulation of current conductors 14 . 14a and from the edge region of the molding blank 23 in a processing facility 20 , Although not shown, the blank preform 23 the first support element, at least one of these functional devices and the second support element. Advantageously, the first support element 7 and the second support element 7a designed as a base course.

10a shows the molding blank 23 as well as the current collector 14 . 14a , which in the processing device, here formed as a shaping tool 20 , are inserted. The two-part forming tool is not yet closed. Part of the forming tool 20 is with a depression, the other part of the forming tool 20 formed with a survey. Deepening and survey serve to form a receiving space in the molding blank 23 or first housing part for the electrode assembly, not shown. Before the forming tool 20 , equipped with recess and elevation, is closed, the molding blank 23 heated to a working temperature which corresponds at least to the softening temperature of the first polymer material.

10b shows the forming tool 20 during the shooting process, wherein by means of the recess and the survey of the receiving space 11 in the molding blank 23 is trained. In this case, the molding blank 23 a working temperature which corresponds at least to the softening temperature of the first polymer material.

10c shows the closed forming tool 20 , The inserted molding blank 23 has the receiving space after plastic deformation 11 on. The current collector 14 . 14a be in the shaping tool 20 in predetermined positions with respect to the molding blank 23 held, especially in the edge region of the molding blank 23 , Preferably, the molding blank 23 a working temperature which corresponds at least to the softening temperature of the first polymer material, in particular thus the molded part blank 23 can enter into an intimate material connection with the second polymer material, not shown.

10d shows the closed forming tool 20 and the inserted blank preform 23 according to 10c at a later time. Two channels heat the second polymer material 21 the forming tool 20 fed. The second polymer material 21 fills in the forming tool 20 provided cavities which in edge regions of the molding blank 23 are arranged. Through the cavities extend the current collector 14 . 14a , With supply of the second polymer material 21 become the edge areas of the molding blank 23 as well as the current collector 14 . 14a molded. Preferably, the molding blank 23 a working temperature which corresponds at least to the softening temperature of the first polymer material, in particular the Molded blank 23 intimate material connections with the second polymer material 21 can go down.

After feeding the second polymer material 21 its temperature and the temperature of the deformed molding blank 23 lowered, so that the softening temperature of the first polymer material is below. The first housing part 6 is then ready for removal.

10e shows the opened forming tool 20 as well as the demoulded first housing part 6 , The first housing part 6 has the two support elements, at least one of these functional devices, in the edge region second polymer material 21 , the recording room 11 , as well as the current collector 14 . 14a on. After removing the first housing part 6 is the forming tool 20 ready for the production of the next first housing part.

11 shows various views and sections of a first housing part 6 with a recording room 11 for an electrode assembly.

12 schematically shows a converter cell 1 with a two-part cell housing 5 , wherein the first housing part 6 as a cup and the second housing part 6a are designed as a lid. The interior of the cup corresponds to the receiving space 11 , Not shown is the second polymer material, which in the edge regions of the housing parts 6 . 6a is arranged. Two current conducting devices 4 . 4a extend at least partially through one of the housing parts in the vicinity of the converter cell 1 ,

12a shows that the Stromleiteinrichtungen 4 . 4a through the second housing part 6a are led into the environment. It is not shown that the current conducting devices 4 . 4a with the second housing part 6a cohesively and in particular are connected gas-tight.

12b shows that the Stromleiteinrichtungen 4 . 4a through the first housing part 6 are led into the environment. It is not shown that the current conducting devices 4 . 4a with the first housing part 6 cohesively and in particular are connected gas-tight.

13 schematically shows a converter cell 1 with a two-part cell housing 5 , where the housing parts 6 . 6a through a frame of second polymer material 21 are spaced. The electrode assembly, not shown, is received by the frame. So are the housing parts 6 . 6a each trained without receiving space. Two of these current conductors 14 . 14a extend out of the frame 21 in the environment of the converter cell 1 ,

14 schematically shows further preferred embodiments of converter cells 1 each with a two-piece cell case 5 and each with two current conductors 14 . 14a , which are in the environment of the converter cell 1 extend. Edge areas of these housing parts 6 . 6a are each of second polymer material 21 surround. These edge regions are materially bonded, in particular gas-tight, to one another. This is how the housing parts form 6 . 6a together the cell housing around the electrode assembly, not shown. The current collector 14 . 14a extend from different housing parts 6 . 6a , in particular from each of the second polymer material 21 , Which each gas-tightly connects one of these current collector with one of these housing parts. The housing parts 6 . 6a are each formed with a receiving space. Advantageously, the two housing parts 6 . 6a formed symmetrically. So storage costs are reduced.

The 14a and 14b show a converter cell 1 in which the current collector 14 . 14a extend in the same direction from the cell housing.

The 14c and 14d show a converter cell 1 in which the current collector 14 . 14a extend in opposite directions from the cell housing.

15 schematically shows further preferred embodiments of converter cells 1 each with a two-piece cell case 5 and with Stromleiteinrichtungen 4 . 4a , Which essentially with one lateral surface of the cell housing 5 to lock. Edge areas of these housing parts 6 . 6a are each of second polymer material 21 surround. These edge regions are materially bonded, in particular gas-tight, to one another. This is how the housing parts form 6 . 6a together the cell housing around the electrode assembly, not shown. The current conducting devices 4 . 4a are in different housing parts 6 . 6a arranged, in particular in each case the second polymer material 21 , Which each gas-tight connects one of these Stromleiteinrichtungen with one of these housing parts. The current conducting devices 4 . 4a close with lateral surfaces of different housing parts 6 . 6a from. The housing parts 6 . 6a are each formed with a receiving space. Advantageously, the two housing parts 6 . 6a formed symmetrically. So storage costs are reduced.

The 15a and 15b show a converter cell 1 in which the Stromleiteinrichtungen 4 . 4a extend in the same direction.

The 15c and 15d show a converter cell 1 in which the Stromleiteinrichtungen 4 . 4a extend in opposite directions.

16 schematically shows further preferred embodiments of converter cells 1 each with a two-piece cell case 5 , each with converter module 2 and two fluid passages 24 . 24a , Not shown are the Stromleiteinrichtungen the converter cell 1 , Edge areas of these housing parts 6 . 6a are each of the second polymer material 21 surround.

These edge regions are materially bonded, in particular gas-tight, to one another. This is how the housing parts form 6 . 6a together the cell housing around the transducer assembly, not shown 2 , The fluid passages 24 . 24a extend from the cell housing, in particular from the second polymer material in the vicinity of the converter cell 1 , The particular controllable fluid passages 24 . 24a are used to exchange oxygen, particularly from the environment or other source of oxygen, with the electrode assembly, with the electrode assembly receiving oxygen upon discharge, with the electrode assembly delivering oxygen upon charge. The fluid passages 24 . 24a can be opened and closed by the controller. Not shown are two gas sensors, which for measuring the flow through these fluid passages 24 . 24a serve. These gas sensors can be operated or read by the control device. At least one of these fluid passages 24 . 24a is configured to be connected to a not belonging to the converter cell fluid delivery device.

The 16a and 16c show a converter cell 1 , their fluid passages 24 . 24a extend in the same direction.

The 16c and 16d show a converter cell 1 , their fluid passages 24 . 24a extend in opposite directions.

LIST OF REFERENCE NUMBERS

1

converter cell

2

Electrode assembly, transducer assembly

3, 3a

electrode

4, 4a

current conducting

5

cell case

6, 6a, 6b

housing part

7, 7a

supporting member

8, 8a, 8b

functional device

9, 9a

functional element

10, 10a

layer region

11

accommodation space

12, 12a

contacting

13

conductor lug

14, 14a

Current conductor

15, 15a

Polkontaktausnehmung

16, 16a

Polkontaktbereich

17, 17a

Kontaktierungsausnehmung

18

layer composite

19

stocking

20

Machining equipment, forming tool

21

second polymeric material, second polymer material frame

22

depositors

23

Molded blank

24, 24a

Fluid passage

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2011/020545 [0018]
• WO 01/97319 [0045]
• US 5985475 B [0048]
• US 2010/0143807 A [0048]
• WO 2011/001287 [0048]
• US 7670724 B [0048]
• WO 2011/031371 [0048]
• EP 2270905 A [0049]

Claims (17)

Converter cell ( 1 ), in particular designed as an electrochemical energy conversion device, with at least one, in particular, rechargeable electrode assembly ( 2 ), which is provided to at least temporarily provide electrical energy, in particular to a consumer, which has at least two electrodes ( 3 . 3a ) of different polarity, which is preferably provided, at least temporarily to convert chemical energy into electrical energy, which is preferably provided to convert at least temporarily, in particular supplied electrical energy into chemical energy, • a Stromleiteinrichtung ( 4 . 4a ), which is provided with one of the electrodes ( 3 . 3a ) of the electrode assembly ( 2 ) electrically, preferably materially connected to, • a cell housing ( 5 ) with a first housing part ( 6 ), wherein the cell housing ( 5 ), the electrode assembly ( 2 ) at least partially surround, wherein the first housing part ( 6 ) at least comprises • a functional device ( 8th . 8a . 8b ), which is provided, the delivery of energy from the electrode assembly ( 2 ) in particular to a consumer who is connected to the electrode assembly ( 2 ), in particular for the absorption of energy, • a first support element ( 7 ), which is provided, the at least one functional device ( 8th . 8a . 8b ). Converter cell ( 1 ) according to claim 1, characterized in that the at least one functional device ( 8th . 8a . 8b ) at least one functional element ( 9 . 9a ), wherein the at least one functional element ( 9 . 9a ) with the electrode assembly ( 2 ) is operatively connected, in particular electrically connected, wherein preferably the at least one functional element ( 9 . 9a ) is designed as: Polkontaktbereich ( 16 . 16a ), Electrode connection area, conductor track, recess ( 14 . 14a ), Voltage sensor, current sensor, temperature sensor, pressure sensor, fabric sensor, gas sensor, liquid sensor, position sensor, accelerometer, control device, application specific integrated circuit, microprocessor, switching device, semiconductor switch, circuit breaker, current limiter, discharge resistor, pressure relief device, fluid passage, actuator, actuator, data storage device, beeper, light-emitting diode, infrared interface, GSM module, first near-field radio device or transponder, with one of these functional elements ( 9 . 9a ) is formed as a fluid passage and the electrode assembly ( 2 ), in particular one of the electrodes ( 3 . 3a ) is configured, during the provision of electrical energy, to receive oxygen, in particular from the ambient air or another source of oxygen, through the at least one fluid passage. Converter cell ( 1 ) according to one of the preceding claims, characterized in that the at least one functional device ( 8th . 8a . 8b ) is at least • partially porous, particularly preferably with a foam, and / or • partially has a cavity structure, in particular a honeycomb structure, and / or • has a cavity for a tempering medium, and / or • has in regions an expandable filler, which provided is to form cavities, in particular when supplying an activation energy or triggered by a functional element ( 9 . 9a ), and / or region-wise a filler with the ability to phase transition (PCM), in particular within the predetermined operating temperature range of the converter cell ( 1 ), and / or • has in regions a chemically reactive and / or flame-retardant filler, which is preferably provided, a substance, in particular from the electrode assembly ( 2 ) chemically bind, more preferably after the release of the substance from the electrode assembly ( 2 ), and / or • a first layer region ( 10 ) having a first wall thickness (thick) and a second layer area ( 10a ) having a second wall thickness (thin), wherein the fraction of the second wall thickness over the first wall thickness has a predetermined value less than 1, wherein preferably the first layer area ( 10 ) has a lower density than the second layer region ( 10a ) having. Converter cell ( 1 ) according to one of the preceding claims, whose cell housing ( 5 ) a second housing part ( 6a ), wherein the second housing part ( 6a ) Is provided, at least in regions with the first housing part ( 6 ) in particular to be materially connected, • is provided, with the first housing part ( 6 ) the cell case ( 5 ) of the converter cell ( 1 ), • a first support element ( 7 ), which is provided, the electrode assembly ( 2 ) relative to the environment of the converter cell ( 1 ), preferably at least one functional device ( 8th . 8a . 8b ), which is intended to assist the delivery of energy in particular to a consumer, which is connected to the electrode assembly ( 2 ), in particular for the absorption of energy. Converter cell ( 1 ) according to one of the preceding claims, characterized in that the first housing part ( 6 ) and / or the second housing part ( 6a ) • a recording room ( 11 ), which is provided, the electrode assembly ( 2 ) at least partially, and / or • a second support element ( 7a ), which in particular adjacent to the functional device ( 8th ) and the electrode assembly ( 2 ), which preferably has a particular fiber-penetrated first polymer material, in particular for stiffening the second support element (US Pat. 7a ), wherein preferably the second support element ( 7a ) a Kontaktierungsausnehmung ( 17 . 17a ), and / or • in a peripheral region of the housing part, a second polymer material ( 21 ), wherein the second polymer material ( 21 ) of the particular cohesive connection with another housing part ( 6a . 6b ), preferably the second polymer material ( 21 ) is formed as a thermoplastic. Converter cell ( 1 ) according to one of the preceding claims, whose cell housing ( 5 ) a substantially plate-shaped third housing part ( 6b ), wherein the third housing part ( 6b ) Is provided, at least in regions with the first housing part ( 6 ) in particular cohesively to the cell housing ( 5 ), and / or • relative to the first housing part ( 6 ) has an increased thermal conductivity, preferably comprising a metal, more preferably aluminum and / or copper, and / or • a first heat transfer area, which is provided, heat energy with the electrode assembly ( 2 ), and / or preferably has a second heat transfer area, which is provided, heat energy with one of the converter cell ( 1 ) not associated tempering. Converter cell ( 1 ) according to one of the preceding claims, characterized in that the at least one current conducting device ( 4 . 4a ) a contacting area ( 12 . 12a ), wherein the contacting region ( 12 . 12a ) For electrical contacting, preferably the electrical supply of the functional device ( 8th ), and / or • preferably in an edge region of the first housing part ( 6 ), and / or • preferably in the direction of the functional device ( 8th ), and / or • is preferably formed by means of a forming process particularly preferably as a hump. Converter cell ( 1 ) according to one of the preceding claims, characterized in that at least one of these Stromleiteinrichtungen ( 4 . 4a ) At least one arrester flag ( 13 . 13a ) which is connected to one of the electrodes ( 3 . 3a ) of the electrode assembly ( 2 ) is preferably materially connected, preferably a current conductor ( 14 . 14a ), which at least partially into the interior of the cell housing ( 5 ), which is particularly preferably at least partially out of the cell housing ( 5 ) into the environment of the converter cell ( 1 ), which with the at least one Ableiterfahne ( 13 . 13a ) is connected in particular cohesively. Converter cell ( 1 ) according to one of the preceding claims, characterized in that • at least one of these functional devices ( 8th . 8a . 8b ) between the first support element ( 7 ) and the second support element ( 7a ) is arranged, preferably at least partially cohesively with the first support element ( 7 ) and the second support element ( 7a ), the first support element ( 7 ) at least one Polkontaktausnehmung ( 15 . 15a ), which in particular a portion of the adjacent functional device ( 8th ) from the environment of the converter cell ( 1 ), in particular makes it electrically contactable, • at least one of these functional devices ( 8th . 8a . 8b ) at least one of these pole contact areas ( 16 . 16a ) in particular in the region of the at least one Polkontaktausnehmung ( 15 . 15a ), which detects the potential of one of the electrodes ( 3 . 3a ) of the electrode assembly ( 2 ), which preferably the electrical connection of this electrode ( 3 . 3a ) with another converter cell ( 1 ) or with a consumer, • the second support element ( 7a ) adjacent to the contacting area ( 12 . 12a ) of the current conducting device ( 4 . 4a ) a Kontaktierungsausnehmung ( 17 . 17a ), • the functional device ( 8th . 8a . 8b ), in particular in the region of the contacting recess ( 17 . 17a ) as a functional element ( 9 . 9a ) has the electrode connection region, which in particular the Stromleiteinrichtung ( 4 . 4a ), preferably their contact area ( 12 . 12a ), • an electrical connection between the current conducting device ( 4 . 4a ), in particular their contact area ( 12 . 12a ) and the functional device ( 8th ) in particular for the electrical supply of the functional device ( 8th ) or at least one functional element ( 9 . 9a ) through the electrode assembly ( 2 ) is trained. Converter cell ( 1 ) according to one of the preceding claims, characterized by a housing assembly with the first housing part ( 6 ) and at least one of these Conductive devices ( 4 . 4a ), preferably two of these Stromleiteinrichtungen ( 4 . 4a ), which with electrodes ( 3 . 3a ) of different polarity, wherein • the first housing part ( 6 ) a particular cohesive layer composite ( 18 . 18a ) from at least the first support element ( 7 ), at least one functional device ( 8th ) with at least one functional element ( 9 . 9a ) and the second support element ( 7a ), the first housing part ( 6 ), in particular in the edge region, a second polymer material ( 21 ), wherein preferably the edge region of the second polymer material ( 21 ) is enclosed at least in regions, • the first housing part ( 6 ) a recording room ( 11 ), wherein the receiving space ( 11 ), the electrode assembly ( 2 ) at least partially accommodate, • at least one of these Stromleiteinrichtungen ( 4 . 4a ) the contacting area ( 12 . 12a ), wherein the contacting region ( 12 . 12a ) in the edge region of the first housing part ( 6 ), preferably in the second polymer material ( 21 ), the second support element ( 7a ) in the contacting area ( 12 . 12a ) at least one of these Stromleiteinrichtungen ( 4 . 4a ) the contacting recess ( 17 . 17a ), • the contact area ( 12 . 12a ) through the Kontaktierungsausnehmung ( 17 . 17a ) with the functional device ( 8th . 8a . 8b ), in particular with their electrode connection area ( 9 . 9a ) is in particular electrically connected. Converter cell ( 1 ) according to one of the preceding claims, characterized in that • the at least one of these functional devices ( 8th . 8a . 8b ) one of these cell control devices ( 9b ) and at least one of these probes ( 9c ), the at least one sensor ( 9c ) is provided, an operating parameter of the converter cell ( 1 ), in particular the electrode assembly ( 2 ) and the cell controller ( 9b ), • the cell controller ( 9c ) is provided, at least one operating method of the converter cell ( 1 ), in particular the charging and / or discharging of the electrode assembly ( 2 ), preferably an operating state of the converter cell ( 1 ). Converter cell ( 1 ) according to one of the preceding claims, which is • designed to receive and / or dispense a charge of at least 10 Ah, and / or • to provide a current of at least 50 A, preferably of at least 100 A, and / or Provision of a voltage of at least 3.5 V is designed, and / or • within a temperature range of -40 ° C to + 100 ° C is operable, and / or • has a gravimetric energy density of at least 50 Wh / kg. Secondary battery with at least two converter cells ( 1 ) according to one of the preceding claims, with a battery control and preferably with a second near-field radio device. Method for producing a converter cell ( 1 ), in particular according to one of claims 1-12, wherein the converter cell ( 1 ) at least: • an electrode assembly ( 2 ) with at least two electrodes ( 3 . 3a ) of different polarity, • at least one or two current conducting devices ( 4 . 4a ), wherein the first current conducting device ( 4 ) with the first polarity electrode ( 3 ) and the second current conducting device ( 4a ) with the second polarity electrode ( 3a ), preferably at least one of these Stromleiteinrichtungen ( 4 . 4a ) at least one arrester flag ( 13 . 13a ), particularly preferably a current conductor ( 14 . 14a ), preferably at least one of these Stromleiteinrichtungen ( 4 . 4a ) a contacting area ( 12 . 12a ), • a cell housing ( 5 ) with a first housing part ( 6 ), preferably also a second housing part ( 7a ) or third housing part ( 7b ), wherein the first housing part ( 6 ) a first support element ( 7 ) and at least one functional device ( 8th . 8a . 8b ) with at least one functional element ( 9 . 9a . 9b . 9c ), wherein the first support element ( 7 ) for supporting the at least one functional device ( 8th . 8a . 8b ), wherein the first support element ( 7 ) comprises a first polymer material and preferably a fiber material, wherein the at least one functional device ( 8th . 8a . 8b ) with the first support element ( 7 ) is at least partially connected in particular cohesively, wherein at least one of these functional devices ( 8th . 8a . 8b ) with the electrode assembly ( 2 ) operatively connected, preferably electrically connected, wherein preferably the first housing part ( 6 ) a second support element ( 7a ), which between the at least one functional device ( 8th . 8a . 8b ) and the electrode assembly ( 2 ), which particularly preferably with one of these functional devices ( 8th . 8a . 8b ) is in particular materially connected, wherein preferably the first housing part ( 6 ) in a peripheral region a second polymer material ( 21 ), wherein the method in particular for closing the cell housing ( 5 ) around the electrode assembly ( 2 ), characterized by the following steps: S17 providing the first housing part ( 6 ) or the particular deformed molding blank ( 23 ), preferably in a processing device ( 20 ) which in particular for forming the cell housing ( 6 ) around the electrode assembly ( 2 ), S19 supplying the electrode assembly ( 2 ), which preferably at least one or more of these arrester vanes ( 13 . 13a ), to the first housing part ( 6 ) preferably in the processing device ( 20 ), in particular insertion of the electrode assembly ( 2 ) in the reception room ( 11 ) of the first housing part ( 6 ), S20 electrically connecting the electrode assembly ( 2 ) with at least one or more of these current conducting devices ( 4 . 4a ), in particular by means of a joining method, preferably by means of a friction welding method, particularly preferably by means of ultrasonic welding, S23 supplying the second housing part ( 6a ) to the first housing part ( 6 ), wherein preferably the second housing part ( 6a ) in a peripheral region the second polymer material ( 21 ), S26 in particular cohesively connecting the second housing part ( 6a ) or the third housing part ( 6b ) with the first housing part ( 6 ), in particular under the influence of heat, in particular at a working temperature which is at least equal to the softening temperature of the second polymer material ( 21 ), wherein preferably an edge region of the first housing part ( 6 ) with the second housing part ( 6a ) or the third housing part ( 6b ), preferably with S25 heating in particular of the edge region of the particular first housing part to a working temperature which corresponds at least to the softening temperature of the second polymer material, preferably instead of step 323 S24 is performed feeding the third housing part ( 6b ) to the first housing part ( 6 ), wherein preferably a first heat transfer region of the third housing part ( 6b ) adjacent to the electrode assembly ( 2 ), more preferably in thermal contact with the electrode assembly ( 2 wherein preferably instead of step S26 is carried out: S26 'in particular cohesively connecting the second housing part or the third housing part with the first housing part, in particular using a sealant and / or adhesive, wherein preferably an edge region of the first housing part with the second housing part or S26 '' in particular cohesively connecting the second housing part or the third housing part with the first housing part, preferably with supplying a particular flowable second polymer material, preferably under the influence of heat and at a differential pressure with respect to the environment of the processing device, in particular the shaping tool, wherein the second polymer material is arranged in the edge region of the at least one of the housing part, in particular at a temperature which corresponds at least to the softening temperature of the second polymer material Preferably, one of these contacting region at least one or two of these Stromleiteinrichtung and remains free, wherein preferably an edge region of the first housing part is connected to the second housing part or the third housing part, in particular after step S25. Method in particular according to the preceding claim, in particular for producing the converter cell ( 1 ), in particular for producing the first or second housing part ( 6 . 6a ), characterized by the steps of: S11 feeding the substantially flat molded part blank (S11) 23 ) into a processing device ( 20 ), in particular in a shaping tool, S12 insertion of at least one or more of these Stromleiteinrichtungen ( 4 . 4a ), preferably inserting at least one or more of these current conductors ( 14 . 14a ), into the processing device ( 20 ), in particular in the forming tool, in particular to the substantially planar molded part blank ( 23 ) S14 supplying a particular flowable second polymer material ( 21 ), preferably under the influence of heat and preferably a differential pressure to the surrounding air pressure to the molding blank ( 23 ) into the processing device ( 20 ), in particular in the forming tool, wherein the second polymer material ( 21 ) in the edge region of the molding blank ( 23 ), in particular at a working temperature which is at least equal to the softening temperature of the second polymer material ( 21 ), preferably one of these contacting areas ( 12 . 12a ) at least one or two of these Stromleiteinrichtungen ( 14 . 14a ) S15 solidifying the deformed molding blank (S15) 23 ), preferably by cooling to a removal temperature, which is in particular below the softening temperature of the first polymer material, which in particular below the softening temperature of the second polymer material ( 21 ), S16 removing the in particular deformed molding blank (S16) 23 ), hereinafter also the first housing part ( 6 ), from the processing device ( 20 ), in particular at a removal temperature which is below the softening temperature of the first polymer material, preferably with at least one of the following steps: S10 heating of the substantially planar molded part blank (S10) 23 ), preferably up to a working temperature, which at least the softening temperature of the first polymer material of the first support element ( 7 ), in particular in the processing device ( 20 ), and / or S13 forming a receiving space ( 11 ) for the electrode assembly ( 2 ) in the molding blank, in particular in the processing device ( 20 ) in particular by means of deformation of the in particular heated molding blank ( 23 ) with a body, wherein the receiving space ( 11 ) to the shape of the electrode assembly ( 2 ), which is preferably substantially the shape of the electrode assembly ( 2 ), which is particularly preferably generated by closing the mold. Method in particular according to one of the two preceding claims, in particular for producing a layer composite ( 18 . 18a ) for the first and second housing part ( 6 . 6a ), the layer composite ( 18 . 18a ) the first support element ( 7 ), at least one or more of these functional devices ( 8th . 8a . 8b ) and preferably the second support element ( 7b ), characterized by the steps: S2, preferably from a second supply, of the first support element (FIG. 7 ), which has a particular fiber-interspersed first polymer material, which preferably has one or two of these Polkontaktausnehmungen ( 15 . 15a ), wherein one or two of these Polkontaktausnehmungen ( 15 . 15a ) to one of these pole contact areas ( 16 . 16a S3, placing at least one or more of these functional devices ( 8th . 8a . 8b ) or functional assemblies, preferably from the first storage, on the first support element ( 7 ) or one of these functional devices ( 8th . 8a . 8b ), preferably as a functional device ( 8th . 8a . 8b ) at least one populated, in particular flexible printed circuit board on the first support element ( 7 ) is placed, wherein particularly preferably the circuit board, the functional elements ( 9 . 9a . 9b . 9c ) according to the first preferred embodiment of the functional device ( 8th . 8a . 8b ), S4 in particular cohesively connecting the first support element ( 7 ) with at least one of these functional devices ( 8th . 8a . 8b ), preferably under the influence of heat, preferably by means of an isotactic or continuous press ( 20 ), whereupon the layer composite ( 18 . 18a ) is formed, preferably with at least one of the steps: S1 generating at least one or more of these functional devices ( 8th . 8a . 8b ) with at least one or more of these functional elements ( 9 . 9a . 9b . 9c ), wherein preferably at least one or two of these functional elements ( 9 . 9a . 9b . 9c ) as an electrode connection area or as a pole contact area ( 16 . 16a ), preferably feeding at least one or more of these functional devices ( 8th . 8a . 8b ) to a first storage, or S1 'generating at least one or more of these functional devices ( 8th . 8a . 8b ) with at least one or more of these functional elements ( 9 . 9a . 9b . 9c ), wherein preferably at least one or two of these functional elements ( 9 . 9a . 9b . 9c ) as an electrode connection area or as a pole contact area ( 16 . 16a ) is formed, wherein in at least one of these functional devices ( 8th . 8a . 8b ) is introduced: a foam, a cavity structure, in particular a honeycomb structure, at least one cavity for a tempering medium, a filler with the ability to phase transition and / or a chemically reactive and / or flame retardant filler, preferably supplying at least one or more of these functional devices ( 8th . 8a . 8b ) to a first storage, or S1 '' generating at least one or more of these functional devices ( 8th . 8a . 8b ) with at least one or more of these functional elements ( 9 . 9a . 9b . 9c ), wherein preferably at least one or two of these functional elements ( 9 . 9a . 9b . 9c ) as an electrode connection area or as a pole contact area ( 16 . 16a ), wherein at least one or more of these functional devices ( 8th . 8a . 8b ) with a first layer region ( 10 ) having a first wall thickness (thick) and a second layer area ( 10a ) is produced with a second wall thickness (thin), wherein the fraction of the second wall thickness above the first wall thickness has a predetermined value smaller than 1, particularly preferably the first layer area ( 10 ) has a lower density than the second layer region ( 10a ), preferably supplying at least one or more of these functional devices ( 8th . 8a . 8b ) to a first storage, preferably with the steps S5 placing a second support element ( 7a ) to one of these functional devices ( 8th . 8a . 8b ), wherein the second support element ( 7a ) has a particular fiber-interspersed first polymer material, preferably from a third storage, wherein preferably the second support element ( 7a ) one or two Kontaktierungsausnehmungen ( 17 . 17a ), and S6 connecting the second support element ( 7a ) with one of these functional devices ( 8th . 8a . 8b ), in particular with the adjacent functional device, preferably under the influence of heat, preferably by means of an isotactic or continuous press ( 20 ), particularly preferably with step S27 combining several of these functional elements ( 9 . 9a ) in one of these functional devices ( 8th . 8a . 8b ), whereby in particular a functional assembly is formed. Method in particular according to one of claims 14-16, in particular for closing the cell housing ( 5 ) around the electrode assembly ( 2 ), in particular for producing the first preferred development of the first preferred embodiment of the converter cell ( 1 ), characterized by the steps: • S11, wherein one of these molded blanks ( 23 ) with one of these functional devices ( 8th . 8a . 8b ) a processing device ( 20 ), this functional device ( 8th . 8a . 8b ) at least one of these electrode connection areas ( 9 ) S12, one or preferably two of these current conducting devices ( 4 . 4a ) or their current conductor ( 14 . 14a ) to this molding blank ( 23 ) in the forming tool ( 20 ) and there in the edge region of the molding blank ( 23 ) or the future first housing part ( 6 ), preferably S22, wherein at least one of these contacting areas ( 12 . 12a ) one of these current conducting devices ( 4 . 4a ) or one of these current conductors ( 12 . 12a ) with at least one of these electrode connection regions of the functional device ( 8th . 8a . 8b ) S10, S13 and S14, wherein preferably S10 is carried out in time before S13, preferably S13 at the same time as S14, whereupon the molded part blank ( 23 ) a recording room ( 11 ) for the electrode assembly ( 2 ) and second polymer material ( 21 ) in the edge region of the molded part blank ( 23 ) is arranged, that the inserted Stromleiteinrichtungen ( 4 . 4a ) or their current conductor ( 12 . 12a ) in particular gas-tight from the second polymer material ( 23 ), whereupon the softened first polymer material of the first support element ( 7 ) strengthens again and the resulting first housing part ( 6 ) the forming tool ( 20 ), • S18, to equip the electrode assembly ( 2 ) with at least one or more of these arrester lugs ( 13 ), the arrester vanes ( 13 ) with at least one of these electrodes ( 3 ) of the first polarity or with at least this of the electrodes ( 3a second polarity, • S17 and S19, whereby the electrode assembly ( 2 ) in the processing device ( 20 ) provided first housing part ( 6 ), preferably in the receiving space ( 11 ) of the first housing part ( 6 ), S21, these discharge lugs ( 13 ), which with these electrodes ( 3 ) are connected to the first polarity, and these arrester vanes ( 13a ), which with these electrodes ( 3b ) of the second polarity, with different current conductors ( 14 . 14a ), in particular by means of a joining method, S23, wherein the second housing part ( 6a ) to the first housing part ( 6 ) and to the electrode assembly ( 2 ) into the processing device ( 20 ) is inserted, wherein at least one of these edge regions of the first housing part ( 6 ) and at least one of these edge regions of the second housing part ( 6a ) are arranged adjacent to one another, preferably S25, wherein in particular the edge region of the in particular first housing part (FIG. 6 ) is heated to a working temperature which is at least the softening temperature of the second polymer material ( 21 ), in particular the edge regions, preferably the second polymer materials ( 21 ) of the first housing part ( 6 ) and the second housing part ( 6a ) are in particular materially connected to one another, in particular at a working temperature which at least the softening temperature of the second polymer material ( 21 ) corresponds.

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