Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
  • H01M10/647—Prismatic or flat cells, e.g. pouch cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6554—Rods or plates
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
  • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
  • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
  • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
  • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
  • H01M50/358—External gas exhaust passages located on the battery cover or case
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/30—Arrangements for facilitating escape of gases
  • H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
  • H01M50/367—Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/50—Current conducting connections for cells or batteries
  • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
  • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M6/00—Primary cells; Manufacture thereof
  • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• Electrical energy storage module and method for manufacturing an electrical energy storage module
• the invention relates to an electrical energy storage module and a method for producing an electrical energy storage module.
• Energy storage cells designed to optimize the ohmic internal resistance and the specific energy and power density of the energy storage cells.
• memory cells are connected in series or in parallel with each other to battery modules to set desired output parameters such as total voltage, voltage range, energy content or power density. If currents with increasing alternating component are removed from such energy storage cells, the influence of the distributed inductance of the energy storage cells increases as a function of frequency. The inductive losses of a
• Energy storage cells are composed of the individual portions of the loss contributions of the electrodes, the Polverscnies and the arrangement of the electrodes in the housing. In addition, at operating frequencies in the kHz range by the
• the document DE 10 2010 035 1 14 A1 discloses, for example, a battery unit with a multiplicity of cell units, each of which has accumulator cells which are electrically coupled via busbars. Moreover, it is necessary to provide degassing openings in the battery cells, through which aerosols can escape from the battery cells. Usually, the battery cells are also heated via a cooling plate.
• the publication DE 40 19 462 A1 discloses, for example, a lead-acid battery in block construction, in which degassing channels are provided in the block cover, which lead out of the battery cells via vent openings exiting aerosols.
• the present invention provides, in one aspect, an electrical
• Energy storage module with at least one memory cell stack, which a plurality of groups of first, planar parallel energy storage cells, each having first electrode elements, and a plurality of surface parallel to the groups of first energy storage cells arranged groups second, planar parallel
• the energy storage cell having, each having second electrode elements.
• the groups of first and second energy storage cells are arranged alternately along a first extension direction of the storage cell stack, and the first electrode elements have a different polarity to the second electrode elements on the side surface of the storage cell stack on a first side surface of the storage cell stack.
• the energy storage module further comprises a plurality of planar contact elements, which are arranged on the side surfaces of the storage cell stack, which electrically connect adjacent groups of first and second energy storage cells, and which are substantially all first or second
• the energy storage module further comprises a degassing channel which is formed over the degassing openings of the energy storage cells along the second side surface flat parallel to the memory cell stack, and which is adapted to discharge aerosols, which emerge from the energy storage cells via the vent openings away from the storage cell stack.
• the present invention provides a method for producing an electrical energy storage module, comprising the steps of
• Energy storage cells each having first electrode elements, and a plurality of surface parallel to the groups of first energy storage cells arranged groups of second, flat-parallel energy storage cells, each second
• Electrode elements on a side surface of the memory cell stack have a different polarity to the second electrode elements on the side surface of the
• Memory cell stack are arranged, and which adjacent groups of first and second energy storage cells galvanically connect.
• the energy storage cells in this case have at a arranged along the direction of extension second side surface of the
• the method comprises arranging a degassing duct over the degassing openings of the energy storage cells along the second side surface in a plane parallel to the latter
• the degassing channel is adapted to aerosols, which emerge from the energy storage cells via the degassing of the
• Energy storage module suitably arranged such that on the one hand, the total length of the necessary current-carrying conductor elements and on the other hand, the number of contact junctions between the individual interconnected
• Energy storage cells and housing parts is minimized. On a side surface of an energy storage cell stack is in a degassing, which along this Side surface runs, collected from the energy storage cells escaping gas and discharged to the outside.
• a significant advantage is that the energy loss can be significantly reduced, especially in the removal of high frequency alternating current from the energy storage module.
• BDI battery direct inverter
• Energy storage modules is improved by the delay of the energy or
• Load output of the energy storage cells is minimized after load changes.
• otherwise possibly compensating components such as, for example, buffer capacitors, which can reduce the space requirement and the production costs of components which insert energy storage cells or modules.
• the electromagnetic compatibility can be improved because the emitted electromagnetic fields can be reduced and interference on adjacent electronic components can be reduced. Furthermore, ohmic losses, for example, due to the skin effect, largely reduced, which is advantageously associated with increased efficiency and lower heat generation.
• Gas collector channel This reduces the height of the entire system.
• the degassing channel does not interfere with the formation of the pole connections, so that no consideration has to be made between low modulus inductance on the one side and optimum degassing on the other side.
• the energy storage module according to the invention may further comprise a first planar pole terminal, which first electrode elements one a first end surface of the memory cell stack arranged group first
• Memory cell stack arranged group of second energy storage cells electrically contacted, wherein the first planar pole terminal and the second planar pole terminal are guided parallel to each other along a side surface of the memory cell stack.
• the energy storage module according to the invention can have two memory cell stacks adjoining one another on the side surfaces, each with groups of first energy cells which are flat in area and groups of second energy storage cells which are flat in area.
• the energy storage module according to the invention may further electrically contact a first planar pole connection, which electrically contacts first electrode elements of a group of first energy storage cells arranged on an end surface of a first storage cell stack, and a second planar pole connection, which electrically contacts first electrode elements of a group of first energy storage cells arranged on an end surface of a second storage cell stack , wherein the first planar pole connection
• Pol connection and the second planar pole terminal are arranged parallel to each other between the two memory cell stacks.
• Energy storage module further comprising an insulating layer, which is arranged between the first planar pole terminal and the second planar pole terminal for electrically insulating the pole terminals.
• the insulating layer may be embodied as a dielectric layer with a high dielectric constant, which has a low-inductive, capacitive path between the dielectric layers
• Pole connections forms. This allows a further reduction of the module inductance of the energy storage module.
• the energy storage module may further comprise a cooling plate, which is arranged flat parallel along a third side surface of the storage cell stack opposite the second side surface and which is designed to operate during operation of the Dissipate energy storage cells resulting waste heat from the energy storage module.
• a cooling plate which is arranged flat parallel along a third side surface of the storage cell stack opposite the second side surface and which is designed to operate during operation of the Dissipate energy storage cells resulting waste heat from the energy storage module.
• Memory cell stack protruding portion may then be arranged power electronic components.
• the cooling plate can take on a dual function and at the same time also switching elements and driver circuits for the
• Energy storage module further comprising a housing, which groups the first, flat parallel energy storage cells, the groups second, planar parallel
• the housing may consist of a non or only slightly electrically conductive material.
• the degassing channel can completely cover the second side surface of the storage cell stack. This allows for the same fluid cross section an extremely flat geometry of the degassing, whereby the overall height of the energy storage module can be minimized.
• the degassing channel may consist of a metallic material.
• the step of arranging a cooling plate in a planar manner can be parallel to one of the second
• FIG. 2 is a schematic representation of a basic structure of an electrical
• Fig. 3 is a schematic representation of a basic structure of an electrical
• Fig. 4 is a schematic representation of a basic structure of an electrical
• Energy storage module according to another embodiment of the invention
• 5 shows a schematic representation of an electrical energy storage module according to a further embodiment of the invention.
• FIG. 6 shows a schematic representation of a method for producing an electrical energy storage module according to a further embodiment of the invention.
• Electric energy storage cells in the sense of the present invention include all devices which store electrical energy over a predefined period of time and can deliver it again over a further period of time.
• Energy storage cells in the context of the present invention encompass all types of secondary and primary energy storage devices, in particular electrically capacitive, electrochemical (Faraday) and combined storage types. The considered periods can range from seconds to hours, days or years.
• Electrical energy storage cells can be, for example, lithium-ion cells, lithium-polymer cells, nickel-metal hydride cells, ultracapacitors, supercapacitors, power capacitors, BatCaps, batteries based on lead, zinc, sodium, lithium, magnesium, sulfur or other metals, Elements or alloys, or include similar systems.
• the functionality of the electrical energy storage cells encompassed by the invention can be based on intercalation electrodes,
• Reaction electrodes or alloy electrodes in combination with aqueous, aprotic or polymeric electrolytes are based.
• the construction of electrical energy storage cells in the sense of the present invention can be both different outer structures, such as
• Electrode elements in the sense of the present invention can be made of various electrically conductive, for example metallic materials.
• Electrode elements in the sense of the present invention can be coated,
• the planar electrode elements may have different dimensions, for example, the thickness of electrode elements may have orders of magnitude of a few ⁇ m to a few mm.
• the electrode elements may be folded, stacked or wound, and it may be provided to form insulation or separation layers between the electrode elements which galvanically separate the electrode elements from one another and can separate the electrolyte into individual regions within the cell housing. It may also be possible to
• Electrode elements can be square, rectangular, round, elliptical or any other design.
• Electric energy storage modules comprise components which have one or more electrical energy storage cells in a housing, wherein the electrical energy storage cells are suitably electrically coupled to one another in order to ensure a serial or parallel connection of the energy storage cells.
• Electrical energy storage modules can have module connections, to which one of the internal interconnection of the electrical energy storage cells of the electrical energy storage module dependent output voltage can be tapped.
• Housing in the context of the present invention comprise all components which have a recess for receiving one or more electrical energy storage cells and the electrically conductive interconnection elements of the electrical energy storage cells, and which can mechanically and / or electrically shield the recorded energy storage cells and elements from the outside world.
• Housings may comprise electrically conductive materials, electrically non-conductive materials or only poorly conductive materials or combinations of partial areas of such materials, such as, for example, plastics, metals, alloys of metals.
• the shape and size of the housing can be adapted to the recorded energy storage cells and elements.
• Fig. 1 shows a schematic representation of an arrangement of electrical
• the arrangement 10 comprises a plurality of flat electrical energy storage cells 1 and 2, which along their
• the memory cell stack 7 in this case has a first extension direction, which runs in FIG. 1 by way of example from left to right.
• the storage cell stack 7 can each have quadrangular end surfaces, which are connected via four side surfaces along the first extension direction.
• the memory cell stack 7 has rectangular end faces, but others
• End surface shapes such as a square or a trapezoidal shape are also possible.
• the energy storage cells 1 and 2 have a plurality of electrode elements 1a and 2a, respectively.
• the electrode elements 1a and 2a for example, spirally wound into each other electrodes, stacked electrodes or electrodes folded on one another.
• per energy storage cell 1 or 2 electrode elements of different polarity may be present, which are electrically isolated from each other within the energy storage cell 1 and 2 respectively.
• the electrode elements can be, for example, flat layers of electrically conductive material, which are meshed with one another in a comb-like structure. It may also be possible that the
• Electrode elements by winding or folding a band of layered
• Electrode elements have been brought into an alternating stack shape. It should be clear that there are a wealth of possibilities, the electrode elements 1 a and 2a in an energy storage cell 1 and 2, respectively, and that the selection of a
• the boundary conditions with respect to the outer shape of the energy storage cell 1 or 2 and / or the electrical characteristics to be achieved of the energy storage cell 1 or 2 may be dependent.
• the electrode elements 1a or 2a may be advantageous to arrange the electrode elements 1a or 2a such that the inner volume of the energy storage cells 1 or 2 is utilized to the maximum.
• the energy storage cells 1 differ from the energy storage cells 2 to the effect that they are arranged in the memory cell stack 7 in mirror image with respect to their polarity. In other words, the energy storage cells 1 are such
• Electrode elements 1 a positive polarity, and on the rear side surface of the
• Memory cell stack 7 electrode elements 1 a negative polarity have.
• the energy storage cells 2 are arranged so that they on the front
• the energy storage cells 1 and 2 can be electrically insulated from each other, for example, each by separating elements 3.
• the separating elements 3 are used in particular for the separation of the electrolyte into segments, so that a certain electrical potential difference within this segment in the electrolyte is not exceeded. These may, for example, have thin layers of electrically non-conductive or only slightly conductive materials.
• the number of each juxtaposed, oriented in the same direction Energy Eisenzellenl or 2 is shown in Fig. 1 by way of example with three, but any other number of juxtaposed energy storage cells the same orientation is also possible.
• the arrangement of cells in the same direction means electrically a parallel connection of the cells, which in particular allows the representation of higher currents.
• the interconnection of such a packet with one of cells in the opposite direction corresponds to a series connection with a corresponding addition of the individual voltages.
• the energy storage cells 1 and 2 may have vent openings 9, which are arranged on a side surface of the storage cell stack 7.
• Degassing 9 all energy storage cells 1 and 2 are arranged on the same side surface, that is, that the first energy storage cells 1 are constructed with respect to the degassing 9 mirror images of the second energy storage cells 2.
• the storage cell stack 7 may be enclosed by a housing 4, which is exemplary prismatic in FIG. However, it is clear that any other shape for the housing 4 is also possible, and that this shape may be dependent on the dimensions of the enclosed energy storage cells 1 and 2, for example.
• FIG. 2 shows a schematic representation of an electrical energy storage module 20, which has an arrangement of electrical energy storage cells 1 and 2.
• the arrangement of electrical energy storage cells can correspond, for example, to the arrangement 10 in FIG. 1. It should be understood, however, that any other arrangement with adaptation of each interconnected elements for the electrical
• Energy storage module 20 is also possible.
• the electrical energy storage module 20 has two-dimensional contact elements 5, which respectively contact adjacent groups of energy storage cells 1 and 2 laterally and interconnect.
• the flat contact elements 5 each connect electrode elements 1a and 2a of different polarity.
• the planar contact elements 5 may each have a surface extension direction which is perpendicular to the surface extension directions of the electrode elements 1 a and 2 a and the
• the flat contact elements 5 may comprise, for example, layers, flat strips or layer elements of electrically conductive material.
• the planar contact elements 5 essentially contact all the first or second electrode elements 1a or 2a of the adjacent groups of energy storage cells 1 and 2, respectively, along their respective ones
• the flat contact elements 5 contact a plurality of
• Electrode elements 1 a and 2 a per energy storage cell 1 and 2, so that the electrical connection path between adjacent energy storage cells 1 and 2 is as low as possible. At the same time, the current density over the large areal extent of the respective contact elements 5 is distributed as homogeneously as possible.
• the surface contacting of the contact elements 5 can be achieved for example via welding, spraying, sputtering or bonding process with the electrode elements 1 a and 2a. It may be provided to keep the projection of the contact elements 5 as low as possible over the vertical extent of the respective layers of electrode elements 1 a and 2a in addition to avoid unnecessary current paths.
• the contact elements 5 are arranged alternately at the front and rear of the storage cell stack 7, so that a meandering or serpentine current path between adjacent energy storage cells 1 and 2 along the
• adjacent, similarly arranged energy storage cells 1 and 2 is preferably even, so that each not connected via contact elements 5 end contacts of each end of the memory cell stack 7 located groups adjacent, similarly arranged energy storage cells 1 and 2 are on the same side of the storage cell stack 7.
• these end contacts are located on the front side at the left and right ends of the memory cell stack.
• the end contacts can each be electrically contacted via pole terminals or pole contact terminals 6a and 6b.
• pole terminals or pole contact terminals 6a and 6b can each have planar elements, which surface parallel to one another to one end side of the
• Memory cell stack 7 are performed.
• the pole contact terminals 6 a and 6 b are guided on the left side of the memory cell stack 7.
• the distance between the PolANDan doing 6a and 6b to each other can be chosen as small as possible to the through the PolANDan everything 6a and 6b
• an insulating layer 8 which is indicated in sections in Fig. 2, between the Polromean Why 6a and 6b
• the insulation layer 8 can also extend between the front-side contact elements 5 and the pole contact connection 6a for a corresponding galvanic insulation.
• the insulating layer 8 may be implemented as a dielectric layer having a high dielectric constant, which forms a low-inductance, capacitive path between the pole contact terminals 6a and 6b. This path can run parallel to the actual electrical Verschaltungspfad the energy storage cells 1 and 2. Due to the capacitive parallel path, the module-internal inductance can be further reduced.
• the pole terminals or pole contact terminals 6a and 6b can extend, for example, over a surface as large as possible, flush with each other. Between the respective ends of the PolANDan anyway 6 a and 6 b can then a Output voltage of the energy storage module 20 are tapped.
• Energy storage module 20 in Fig. 2 may also have a housing 4, which is not shown explicitly for reasons of clarity in Fig. 2.
• FIG. 3 shows a schematic representation of an electrical energy storage module 30, which has an arrangement of electrical energy storage cells.
• Energy storage cells can correspond to the energy storage cells 1 and 2 in Fig. 1.
• the electrical energy storage module 30 has an arrangement of two storage cell stacks 7a and 7b arranged parallel to one another. Without restricting generality, the memory cell stack 7a shown in the background is to be referred to as the rear memory cell stack, and the memory cell stack 7b shown in the foreground is referred to as the front memory cell stack.
• Memory cell stacks 7a and 7b may be the same and have an even number.
• the number of energy storage cells 1 and 2 per group is shown in Fig. 3 by way of example with one, wherein any other number is also possible.
• Energy storage module 30 has no separating elements between the energy storage cells 1 and 2; However, it is understood that as shown in Fig. 1 corresponding separating elements 3 between the groups of adjacent, similarly arranged energy storage cells 1 and 2 may be provided.
• Memory cell stack 7a and 7b results. The last located on the right
• Energy storage cells 2 of both storage cell stack 7 a and 7 b can via a
• stack-overlapping contact element 5a may be electrically connected to result in a straddling current path meandering from the left side of the rear memory cell stack 7a to the right side of the rear memory cell stack 7a, and from the right side of the front memory cell stack 7b to the left side of the front memory cell stack 7b runs. It can to the respective
• each pole terminals or Polumblean somebody 6a and 6b may be provided.
• the pole terminals or Polternan everything 6a and 6b can analog
• an optional insulation layer 8 can be provided, which between the
• the insulating layer 8 may also be between the front side for a corresponding galvanic insulation
• the energy storage module 20 may have a housing 4 which can ensure a mechanical and / or electrical shielding of the energy storage module 20 with respect to the outside world.
• vent openings 9 of all energy storage cells 1 and 2 are in turn arranged on adjacently lying in a plane side surfaces of the storage cell stack 7a and 7b, so that over the vent openings 9 aerosols from all
• Energy storage cells 1 and 2 emerge in substantially the same direction and thereby can be derived via a suitable Entgasungssammelsystem.
• FIGS. 2 and 3 show only exemplary embodiments of energy storage modules. Variations and modifications can under
• the illustrated energy storage modules may be preferably used in systems where high frequency alternating currents are out of the
• Energy storage cells are removed, for example, in battery direct converters with drive frequencies above about 100 Hz. In these systems, due to the design of the energy storage modules inductive losses due to the high
• the energy storage modules 20 and 30 of FIGS. 2 to 3 can serve as a basis for an energy storage module 40, as shown by way of example in FIG. 4.
• the energy storage modules 20 and 30 of FIGS. 2 to 3 can serve as a basis for an energy storage module 40, as shown by way of example in FIG. 4.
• Energy storage module 40 includes an energy storage module 20, which is applied to a side surface 9b on a cooling plate 1 1.
• the cooling plate 1 1 is arranged in a planar manner along one of the side surfaces 9 a, on which the degassing openings 9 are arranged opposite side surface 9 b of the storage cell stack 7.
• the cooling plate may comprise a metallic layer of high thermal conductivity material which is designed to withstand the operation of the
• the cooling plate 1 1 can protrude beyond at least one end face of the storage cell stack 7, as shown in Fig. 4, for example, with the section 1 1.
• power electronic components can be arranged on the over the end surface of the memory cell stack 7 protruding portion 1 1 a then, for example, power electronic components can be arranged.
• Power electronic components can, for example, semiconductor switches,
• the cooling plate 1 1 can also simultaneously de-heat the power-electronic components with the energy storage module 40, as a result of which the required installation space for the entire module together with the control electronics is reduced.
• the necessary conductor lengths between the pole terminals 6a and 6b of the Energy storage module and the power electronic components resulting in a reduction of electrical losses.
• FIG. 5 shows a schematic representation of an electrical energy storage module 50, which has an arrangement of electrical energy storage cells 1 and 2.
• the energy storage module 50 may be, for example, as shown in FIGS. 1 and 2.
• Energy storage modules 20 to 40 are constructed.
• pole terminals or pole contact terminals 6a and 6b are applied to a side surface of the memory cell stack 7.
• a degassing channel 12 is arranged, which is opened with respect to the degassing openings 9, and out of the degassing openings 9
• the degassing passage 12 may completely cover, for example, the side surface 9a of the storage cell stack 7. Thus, with the same cross section of the degassing 12, the height of the
• Degassing channel 12 and thus of the energy storage module 50 are minimized.
• the degassing 12 may for example consist of a metallic material. Moreover, the degassing channel 12 for mechanical fixation of
• Energy storage cells 1 and 2 are used in the cell assembly of the energy storage module 50.
• FIGS. 2 to 5 shows a schematic representation of a method 60 for producing an electrical energy storage module, in particular one of the energy storage modules 20, 30, 40 or 50 shown schematically in FIGS. 2 to 5.
• a first step 61 a plurality of groups is arranged alternately first, planar parallel energy storage cells 1, each having first electrode elements 1 a, and a plurality of surface parallel to the first groups
• a second step 62 substantially all of the first or second electrode elements 1a, 2a of the adjacent groups of first and second energy storage cells 1, 2 are contacted over the width of the storage cell stack 7, 7a, 7b by means of a plurality of planar contact elements 5 to the
• Electrode elements 1 a, 2 a are contacted.
• the electrical resistance of the connection point between the respective contact element 5 and the electrode elements 1 a, 2 a is to be kept as low as possible.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting with the respective contact elements 5, depending on the desired cell topology.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting with the respective contact elements 5, depending on the desired cell topology.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting with the respective contact elements 5, depending on the desired cell topology.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting with the respective contact elements 5, depending on the desired cell topology.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting with the respective contact elements 5, depending on the desired cell topology.
• the first and second planar parallel electrode elements 1 and 2 can be suitably stacked, folded or wound, for example, before contacting
• Electrode elements 1 a and 2 a are folded or layered in meandering paths using an insulating separator layer.
• a prismatic cell design may use a "racetrack pancake” topology or a “racetrack double pancake” topology, that is, a flat spiral winding of first and second electrode elements 1a and 2a, respectively, along a cross-sectional direction of the resulting coil can be compressed or compressed to a "racetrack” shape, that is, one over close
• the energy storage cells 1 and 2 have degassing openings 9 at a second side surface 9a of the storage cell stack arranged along the extension direction, so that in a third step 63 of the method 60, a degassing channel 12 is arranged above the degassing openings 9 of the energy storage cells 1 and 2 along the second Side surface 9a flat parallel to the memory cell stack is possible.
• the degassing 12 serves aerosols, which from the
• a cooling plate 11 can be arranged in a planar manner along a third side surface 9b of the storage cell stack opposite the second side surface 9a.
• the cooling plate 1 1 is used in the operation of
• Contact elements 5 take place in a housing 4.
• the first and second pole terminals 6a, 6b can be led out of the housing 4 as electrical terminals of the energy storage module.

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