WO2009098115A1 - Battery comprising a degassing unit - Google Patents

Battery comprising a degassing unit Download PDF

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Publication number
WO2009098115A1
WO2009098115A1 PCT/EP2009/050477 EP2009050477W WO2009098115A1 WO 2009098115 A1 WO2009098115 A1 WO 2009098115A1 EP 2009050477 W EP2009050477 W EP 2009050477W WO 2009098115 A1 WO2009098115 A1 WO 2009098115A1
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WO
WIPO (PCT)
Prior art keywords
battery
pole
degassing line
housing
chargeable
Prior art date
Application number
PCT/EP2009/050477
Other languages
German (de)
French (fr)
Inventor
Jochen Fassnacht
Mario Roessler
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2009098115A1 publication Critical patent/WO2009098115A1/en

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Classifications

    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/6553—Terminals or leads
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • 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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • 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

  • the present invention relates to a battery, in particular a battery cell, comprising a housing, a negatively chargeable pole, a positively chargeable pole, an electrical conductor connected to the negatively chargeable pole and / or positively chargeable pole for deriving an electric current and a degassing line for deriving Gas or steam from the battery. Furthermore, the invention relates to a battery module system and a method for cooling of at least one battery.
  • the connected to the pole cap electrical conductor for dissipating the electric current from the pole cap is thus located within the plenum and must be guided by the Sammelwandung.
  • the gas-tight enclosure of the pole cap by means of the collecting wall is complicated.
  • the electrical conductor must be guided gastight through the collecting wall.
  • a lot of heat is dissipated at the polarity cap of the battery, so that the polar cap and also the electrical conductor connected not only electrically but also thermally with the pole cap heat up considerably.
  • the collecting space enclosed by the collecting wall acts as a thermal insulation for the pole cap and the electrical conductor, so that the resulting heat in the battery can be derived only insufficiently on the pole cap and the electrical conductor.
  • the object of the present invention is to provide a battery, a battery module system with a plurality of batteries and a method for cooling of at least one battery available, so that the gases and vapors arising in the battery can be safely derived with little technical effort , Furthermore, a good cooling of the battery should also be ensured at the pole cap and the electrical conductor.
  • a battery in particular battery cell, comprising a housing, a negatively chargeable pole, a positively chargeable pole, an electrical conductor connected to the negatively chargeable pole and / or positively chargeable pole for discharging an electric current and a degassing line for discharging gas from the battery, wherein the negatively chargeable pole and / or the positively chargeable pole and / or the housing is provided with an opening and the degassing line to the negative pole and / or the positively chargeable pole and / or with the housing is connected, that the gas or vapors can be conducted directly from the opening in the degassing line.
  • a cooling fluid can be passed directly to the pole and / or housing to improve cooling at the pole and / or housing.
  • the opening is completely enclosed by the degassing line, so that the entire gas emerging from the opening can be introduced into the degassing line.
  • the degassing line is connected directly to the negatively chargeable pole and / or the positively chargeable pole and / or to the housing.
  • the negatively chargeable pole and / or the positively chargeable pole are formed as pole caps, so that there is a gap for discharging and / or collecting the gas or the vapors.
  • the electrical conductor and / or the degassing line and / or the negatively chargeable pole and / or the positively chargeable pole and / or the housing to the effect designed such that the electrical conductor is formed exclusively outside the degassing line and / or the intermediate space and / or the housing.
  • the electrical conductor can thus be cooled directly in the region of the pole of the cooling fluid.
  • the diameter of the gap perpendicular to a longitudinal axis of the battery is smaller than the diameter of the battery perpendicular to the longitudinal axis of the battery.
  • the diameter of the gap is less than 60%, in particular less than 40%, of the diameter of the battery.
  • the degassing line made of metal, rubber or plastic.
  • the degassing line is provided at one end with a thread, in particular external thread, and a threaded part connected to the negatively chargeable pole and / or the positively chargeable pole and / or the housing, in particular a nut, is threaded, in particular Internal thread, formed so that the degassing line and / or the electrical conductor can be screwed to the threaded part.
  • the degassing line can be plugged onto a pipe socket formed on the positively chargeable pole and / or the negatively chargeable pole and / or the housing.
  • the gas can be conducted from an interior of the battery into the degassing line by means of a pressure relief valve.
  • the gas is passed through the pressure relief valve in the intermediate space.
  • the degassing line is connected to the positively chargeable pole and / or the negatively chargeable pole and / or the housing by means of welding, screwing or pressing.
  • the degassing line is arranged and / or formed symmetrically to a plane of symmetry or an axis of symmetry of the battery.
  • the battery is a lithium ion battery or a nickel metal hydride battery.
  • the battery is circular in cross section.
  • a battery module system In a battery module system according to the invention are arranged with a plurality of batteries described above.
  • the at least one battery at the negatively chargeable pole and / or the positively chargeable pole and / or the housing directly from one of the negatively chargeable pole and / or the positively chargeable pole and / Cooling fluid flowing to the housing or cooled.
  • the cooling fluid flows around the battery in the axial or in the radial direction.
  • the fluid is air.
  • Fig. 1 is a schematic cross section of a battery in a first
  • Fig. 2 shows a schematic cross section of the battery in a second
  • Embodiment and Fig. 3 is a longitudinal section of a battery module system.
  • a battery 1 according to the invention designed as a lithium-ion battery 2 is shown in a cross section.
  • a housing 3 made of metal surrounds the battery 1 disclosed in FIG. 1.
  • a pole 5 which can be loaded in a positive manner is designed as a pole cap 9, so that a gap 10 is formed on the pole cap 9 between the positively loadable pole 5 and the seal 25.
  • the seal 25 seals the housing 3 fluid-tight against the pole cap 9 and also acts as electrical insulation.
  • the pole 4 and the pole cap 9 are also part of the housing 3, because they also enclose the battery 1.
  • a printed circuit board 26 conducts the electric current from electrodes (not shown) through a conductor strip 27 to the positively chargeable pole 5. Centric in the seal 25 and the circuit board 27, a pressure relief valve 21 is arranged, which from a certain pressure in the interior 24 of the battery. 1 Gases or vapors in the gap 10 passes.
  • the pressure relief valve 21 is designed as a break valve 28.
  • the break valve 28 is provided at certain areas with a low material thickness, so that from a certain pressure in these areas, the wall of the fracture valve 28 breaks and a breakthrough occurs, can flow through the gases or vapors from the interior 24 into the gap 10 (not shown).
  • the polar cap 9 is provided with an opening 8.
  • a degassing line 7 attached to the pole cap 9 completely encloses the opening 8, so that the entire gases or vapors flowing out of the gap 10 through the opening 8 into the degassing line 7 are conducted into the degassing line 7.
  • the degassing 7 is made of metal, rubber or plastic and is preferably welded to the polar cap 9.
  • the opening 8 and the degassing line 7 are formed symmetrically to an axis of symmetry 22 or a plane of symmetry 23 of the battery 1.
  • the plane of symmetry 23 is shown in Fig. 1 and 2 due to the perspective only as a straight line.
  • a diameter 12 of the gap 10 perpendicular to the longitudinal axis 11 of the battery 1 is smaller than a diameter 13 of the battery 1 perpendicular to the longitudinal axis 11 of the battery 1.
  • the degassing 7 opens into a manifold 29, which further dissipates the gases and vapors.
  • the electric current is at the pole cap 9 by means of an electrical conductor 6, preferably derived from copper.
  • the electrical conductor 6 is connected to the pole cap 9 for this purpose.
  • a negatively chargeable pole 4 is formed, which is also part of the housing 3.
  • a cooling fluid 30, z In the area of the pole cap 9 located on the upper side of the battery 1, relatively large amounts of heat are to be dissipated to the environment.
  • the electrical conductor 6 is not only electrically conductive, but also thermally connected to the pole cap 9, that is, the electrical conductor 6 is heated by the polar cap 9. In a particularly advantageous manner, the electrical conductor 6 is also flowed around by the cooling fluid 30, so that the electrical conductor 6 can also contribute to the cooling of the battery 1.
  • a second embodiment of the battery 1 according to the invention is shown.
  • the degassing line 7 is provided at one end 14 with a threaded thread 15 designed as an external thread 16.
  • At the pole cap 9 is formed as a nut 18 threaded portion 17 is present.
  • the degassing line 7 and / or the electrical conductor 6 can thus be screwed by means of the nut 18 to the pole cap 9.
  • the second embodiment according to FIG. 2 corresponds to the first embodiment according to FIG. 1.
  • a pipe socket is provided on the pole cap 9, on which a degassing line 7 designed as a hose can be plugged.
  • FIG. 3 shows a longitudinal section of a battery module system 20 according to the invention with a plurality of batteries 1.
  • a plurality of batteries 1 are combined to realize a certain electric power.
  • the degassing lines 7 of the batteries 1 are connected to one another by means of the collecting line 29, in order to be able to collect and discharge the gases and vapors of the batteries 1 in the battery module system 20.
  • the electric current is discharged to the battery 1 by means of the electrical conductor 6.
  • a cooling fluid for cooling the batteries 1 may be introduced into the battery module system 20 (not shown).
  • the pole cap 9 need not be provided with a complex Sammelwandung to form a collecting space, so that the battery 1 is structurally simple and inexpensive to manufacture.
  • a cooling fluid for. As air, the polar cap 9 and the electrical conductor 6 flow around directly, so that the heat dissipated from the polar cap 9 and the electrical conductor 6 heat from the cooling fluid 30 is good, because no collecting space is present which acts as a thermal insulation.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to a battery (1), especially a battery cell, comprising a case (3), a negatively chargeable terminal (4), a positively chargeable terminal (5), a conductor (6) that is connected to the negatively chargeable terminal (4) and/or to the positively chargeable terminal (5) for tapping electric current and a degassing line (7) for discharging gas from the battery. The aim of the invention is to improve said battery in such a manner that any gases and vapors produced can be reliably discharged with little technical complexity while allowing an efficient cooling of the battery (1) on the terminal cap (9) and the conductor (6). The battery according to the invention is characterized in that the negatively chargeable terminal (4) and/or the positively chargeable terminal (5) and/or the case (3) has an opening (8) and the degassing line (7) is connected to the negatively chargeable terminal (4) and/or the positively chargeable terminal (5) and/or the case (3) in such a manner that the gas or the vapors can be guided directly from the opening (8) to the degassing line (7).

Description

Beschreibung description
Titeltitle
Batterie mit EntgasungseinrichtungBattery with degassing device
Die vorliegende Erfindung betrifft eine Batterie, insbesondere Batteriezelle, umfassend ein Gehäuse, einen negativ ladbaren Pol, einen positiv ladbaren Pol, einen mit dem negativ ladbaren Pol und/oder positiv ladbaren Pol verbundenen elektrischen Leiter zum Ableiten eines elektrischen Stromes und eine Entgasungsleitung zum Ableiten von Gas oder Dämpfen aus der Batterie. Ferner betrifft die Erfindung ein Batteriemodulsystem und ein Verfahren zur Kühlung von wenigstens einer Batterie.The present invention relates to a battery, in particular a battery cell, comprising a housing, a negatively chargeable pole, a positively chargeable pole, an electrical conductor connected to the negatively chargeable pole and / or positively chargeable pole for deriving an electric current and a degassing line for deriving Gas or steam from the battery. Furthermore, the invention relates to a battery module system and a method for cooling of at least one battery.
Stand der TechnikState of the art
In Batterien, z. B. Lithium-Ionen-Batterien, entstehen bei Störungen oder beim normalen Betrieb Gase oder Dämpfe, welche zu einem Überdruck im gasdichten Gehäuse der Batterie führen können. Um ein Platzen der Batterie zu verhindern, werden mittels eines Überdruck- ventils die Gase oder Dämpfe in die Umgebung der Batterie geleitet. Die Ausgasungsöffnung ist, insbesondere bei zylinderförmigen Batterien, im Allgemeinen seitlich an einer Polkappe angebracht. Die austretenden Gase und Dämpfe sind normerweise sehr giftig, so dass diese eingefangen werden müssen. Hierzu ist die gesamte Polkappe von einer Sammelwandung umgeben, um das austretende Gas innerhalb der Sammelwandung in einem Sammelraum auffangen zu können. An die Sammelwandung ist eine Entgasungsleitung angeschlossen, welche die im Sammelraum aufgefangenen Gase ableitet. Der an der Polkappe angeschlossene elektrische Leiter zum Ableiten des elektrischen Stromes von der Polkappe befindet sich somit innerhalb des Sammelraumes und muss durch die Sammelwandung geführt werden. Das gasdichte Einschließen der Polkappe mittels der Sammelwandung ist aufwendig. Ferner muss auch der elektrische Leiter gasdicht durch die Sammelwandung geführt werden. An der Polkappe der Batterie wird viel Wärme abgegeben, so dass sich die Polkappe und auch der nicht nur elektrisch sondern auch thermisch mit der Polkappe verbundene elektrische Leiter stark erwärmen. Der von der Sammelwandung eingeschlossene Sammelraum wirkt jedoch als thermische Isolierung für die Polkappe und den elektrischen Leiter, so das die in der Batterie entstehende Wärme nur unzureichend an der Polkappe und dem elektrischen Leiter abgeleitet werden kann. AufgabeIn batteries, z. As lithium-ion batteries, caused by faults or during normal operation gases or vapors, which can lead to an overpressure in the gas-tight housing of the battery. To prevent the battery from bursting, the gases or vapors are directed into the environment of the battery by means of an overpressure valve. The outgassing opening is, in particular in the case of cylindrical batteries, generally attached laterally to a pole cap. The escaping gases and vapors are normally very toxic, so they must be captured. For this purpose, the entire polar cap is surrounded by a collecting wall in order to be able to catch the escaping gas within the collecting wall in a collecting space. To the Sammelwandung a degassing line is connected, which dissipates the collected gases in the plenum. The connected to the pole cap electrical conductor for dissipating the electric current from the pole cap is thus located within the plenum and must be guided by the Sammelwandung. The gas-tight enclosure of the pole cap by means of the collecting wall is complicated. Furthermore, the electrical conductor must be guided gastight through the collecting wall. A lot of heat is dissipated at the polarity cap of the battery, so that the polar cap and also the electrical conductor connected not only electrically but also thermally with the pole cap heat up considerably. However, the collecting space enclosed by the collecting wall acts as a thermal insulation for the pole cap and the electrical conductor, so that the resulting heat in the battery can be derived only insufficiently on the pole cap and the electrical conductor. task
Die Aufgabe der vorliegenden Erfindung besteht deshalb darin, einen Batterie, ein Batteriemodulsystem mit mehreren Batterien und ein Verfahren zur Kühlung von wenigstens einer Batterie zur Verfügung zu stellen, so dass die in der Batterie entstehenden Gase und Dämpfe mit einem geringen technischen Aufwand sicher abgeleitet werden können. Ferner soll auch an der Polkappe und dem elektrischen Leiter eine gute Kühlung der Batterie gewährleistet sein.The object of the present invention is to provide a battery, a battery module system with a plurality of batteries and a method for cooling of at least one battery available, so that the gases and vapors arising in the battery can be safely derived with little technical effort , Furthermore, a good cooling of the battery should also be ensured at the pole cap and the electrical conductor.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird gelöst mit einer Batterie, insbesondere Batteriezelle, umfassend ein Gehäuse, einen negativ ladbaren Pol, einen positiv ladbaren Pol, einen mit dem negativ ladbaren Pol und/oder positiv ladbaren Pol verbundenen elektrischen Leiter zum Ableiten eines elektrischen Stromes und eine Entgasungsleitung zum Ableiten von Gas aus der Batterie, wobei der negativ ladbare Pol und/oder der positiv ladbaren Pol und/oder das Gehäuse mit einer Öffnung versehen ist und die Entgasungsleitung dahingehend mit dem negativ ladbaren Pol und/oder dem positiv ladbaren Pol und/oder mit dem Gehäuse verbunden ist, dass das Gas oder die Dämpfe unmittelbar aus der Öffnung in die Entgasungsleitung leitbar ist. Damit ist kein aufwendiger Sammelraum notwendig, weil das Gas unmittelbar in die Entgasungsleitung eingeleitet wird. Ferner kann ein Kühlfluid unmittelbar zum Pol und/oder Gehäuse geleitet werden, um am Pol und/oder Gehäuse die Kühlung zu verbessern.This object is achieved with a battery, in particular battery cell, comprising a housing, a negatively chargeable pole, a positively chargeable pole, an electrical conductor connected to the negatively chargeable pole and / or positively chargeable pole for discharging an electric current and a degassing line for discharging gas from the battery, wherein the negatively chargeable pole and / or the positively chargeable pole and / or the housing is provided with an opening and the degassing line to the negative pole and / or the positively chargeable pole and / or with the housing is connected, that the gas or vapors can be conducted directly from the opening in the degassing line. Thus, no complex collecting space is necessary because the gas is introduced directly into the degassing line. Further, a cooling fluid can be passed directly to the pole and / or housing to improve cooling at the pole and / or housing.
In einer weiteren Ausgestaltung ist die Öffnung von der Entgasungsleitung vollständig umschlossen, so dass das gesamte aus der Öffnung austretende Gas in die Entgasungsleitung einleitbar ist.In a further embodiment, the opening is completely enclosed by the degassing line, so that the entire gas emerging from the opening can be introduced into the degassing line.
In einer zusätzlichen Ausführungsform ist die Entgasungsleitung unmittelbar mit dem negativ ladbaren Pol und/oder dem positiv ladbaren Pol und/oder mit dem Gehäuse verbunden.In an additional embodiment, the degassing line is connected directly to the negatively chargeable pole and / or the positively chargeable pole and / or to the housing.
Zweckmäßig sind der negativ ladbare Pol und/oder der positiv ladbaren Pol als Polkappen ausgebildet, so dass ein Zwischenraum zum Ableiten und/oder Sammeln des Gases oder der Dämpfe vorhanden ist.Suitably, the negatively chargeable pole and / or the positively chargeable pole are formed as pole caps, so that there is a gap for discharging and / or collecting the gas or the vapors.
Insbesondere sind der elektrische Leiter und/oder die Entgasungsleitung und/oder der negativ ladbare Pol und/oder der positiv ladbaren Pol und/oder das Gehäuse dahingehend ausgebildet, dass der elektrische Leiter ausschließlich außerhalb der Entgasungsleitung und/oder des Zwischenraumes und/oder des Gehäuses ausgebildet ist. Der elektrische Leiter kann damit auch im Bereich des Poles von dem Kühlfluid unmittelbar gekühlt werden.In particular, the electrical conductor and / or the degassing line and / or the negatively chargeable pole and / or the positively chargeable pole and / or the housing to the effect designed such that the electrical conductor is formed exclusively outside the degassing line and / or the intermediate space and / or the housing. The electrical conductor can thus be cooled directly in the region of the pole of the cooling fluid.
In einer weiteren Ausgestaltung ist der Durchmesser des Zwischenraumes senkrecht zu einer Längsachse der Batterie kleiner als der Durchmesser der Batterie senkrecht zu der Längsachse der Batterie.In a further embodiment, the diameter of the gap perpendicular to a longitudinal axis of the battery is smaller than the diameter of the battery perpendicular to the longitudinal axis of the battery.
In einer zusätzlichen Ausführungsform beträgt der Durchmesser des Zwischenraumes weniger als 60%, insbesondere weniger als 40%, des Durchmessers der Batterie.In an additional embodiment, the diameter of the gap is less than 60%, in particular less than 40%, of the diameter of the battery.
Vorzugsweise besteht die Entgasungsleitung aus Metall, Gummi oder Kunststoff.Preferably, the degassing line made of metal, rubber or plastic.
In einer zusätzlichen Ausgestaltung ist die Entgasungsleitung an einem Ende mit einem Gewinde, insbesondere Außengewinde, versehen und ein mit dem negativ ladbare Pol und/oder dem positiv ladbaren Pol und/oder dem Gehäuse verbundenes Gewindeteil, insbesondere eine Schraubenmutter, ist mit einem Gewinde, insbesondere Innengewinde, ausgebildet, so dass die Entgasungsleitung und/oder der elektrische Leiter mit dem Gewindeteil verschraubbar ist.In an additional embodiment, the degassing line is provided at one end with a thread, in particular external thread, and a threaded part connected to the negatively chargeable pole and / or the positively chargeable pole and / or the housing, in particular a nut, is threaded, in particular Internal thread, formed so that the degassing line and / or the electrical conductor can be screwed to the threaded part.
In einer weiteren Ausführungsform ist die Entgasungsleitung auf einen an dem positiv ladbare Pol und/oder dem negativ ladbaren Pol und/oder dem Gehäuse ausgebildeten Rohrstutzen aufsteckbar.In a further embodiment, the degassing line can be plugged onto a pipe socket formed on the positively chargeable pole and / or the negatively chargeable pole and / or the housing.
In einer ergänzenden Ausgestaltung ist mittels eines Überdruckventils das Gas aus einem Innenraum der Batterie in die Entgasungsleitung leitbar.In a supplementary embodiment, the gas can be conducted from an interior of the battery into the degassing line by means of a pressure relief valve.
In einer zusätzlichen Ausführungsform ist das Gas durch das Überdruckventil in den Zwischenraum leitbar.In an additional embodiment, the gas is passed through the pressure relief valve in the intermediate space.
In einer weiteren Ausgestaltung ist die Entgasungsleitung mit dem positiv ladbare Pol und/oder dem negativ ladbaren Pol und/oder dem Gehäuse mittels Schweißen, Schrauben oder Pressen verbunden.In a further embodiment, the degassing line is connected to the positively chargeable pole and / or the negatively chargeable pole and / or the housing by means of welding, screwing or pressing.
Vorzugsweise ist die Entgasungsleitung symmetrisch zu einer Symmetrieebene oder einer Symmetrieachse der Batterie angeordnet und/oder ausgebildet. Insbesondere ist die Batterie eine Lithium-Ionen-Batterie oder eine Nickel- Metallhydrid- Batterie.Preferably, the degassing line is arranged and / or formed symmetrically to a plane of symmetry or an axis of symmetry of the battery. In particular, the battery is a lithium ion battery or a nickel metal hydride battery.
Insbesondere ist die Batterie im Querschnitt kreisförmig.In particular, the battery is circular in cross section.
In einem erfindungsgemäßen Batteriemodulsystem sind mit mehrere oben beschriebenen Batterien angeordnet.In a battery module system according to the invention are arranged with a plurality of batteries described above.
In einem erfindungsgemäßen Verfahren zur Kühlung von wenigstens einer oben beschriebenen Batterie wird die wenigstens eine Batterie an dem negativ ladbare Pol und/oder dem positiv ladbaren Pol und/oder dem Gehäuse unmittelbar von einem an dem negativ ladbare Pol und/oder dem positiv ladbaren Pol und/oder dem Gehäuse strömenden Kühlfluid gekühlt.In a method according to the invention for cooling at least one battery described above, the at least one battery at the negatively chargeable pole and / or the positively chargeable pole and / or the housing directly from one of the negatively chargeable pole and / or the positively chargeable pole and / Cooling fluid flowing to the housing or cooled.
In einer weiteren Ausgestaltung umströmt das Kühlfluid die Batterie in axialer oder in radialer Richtung.In a further embodiment, the cooling fluid flows around the battery in the axial or in the radial direction.
Insbesondere ist das Fluid Luft.In particular, the fluid is air.
Im Nachfolgenden werden zwei Ausführungsbeispiele der Erfindung unter Bezugnahme auf die beigefügten Zeichnungen näher beschrieben. Es zeigt:In the following two embodiments of the invention will be described in more detail with reference to the accompanying drawings. It shows:
Fig. 1 einen schematischen Querschnitt einer Batterie in einer erstenFig. 1 is a schematic cross section of a battery in a first
Ausführungsform, Fig. 2 einen schematischen Querschnitt der Batterie in einer zweitenEmbodiment, Fig. 2 shows a schematic cross section of the battery in a second
Ausführungsform und Fig. 3 einen Längsschnitt eines Batteriemodulsystems.Embodiment and Fig. 3 is a longitudinal section of a battery module system.
In Fig. 1 und 2 ist eine als Lithium-Ionen-Batterie 2 ausgeführte erfindungsgemäße Batterie 1 in einem Querschnitt dargestellt. Der im Innenraum 24 der Batterie 1 im Wesentlichen koxial zu der Längsachse 11 der Batterie 1 angeordneten Separatoren zur Trennung zwischen den Grafitverbindungen als Anode und den Lithiumverbindungen als Kathode sind in Fig. 1 und 2 nicht dargestellt.In FIGS. 1 and 2, a battery 1 according to the invention designed as a lithium-ion battery 2 is shown in a cross section. The in the interior 24 of the battery 1 substantially coaxial to the longitudinal axis 11 of the battery 1 arranged separators for the separation between the graphite compounds as the anode and the lithium compounds as a cathode are not shown in Fig. 1 and 2.
Ein Gehäuse 3 aus Metall umschließt die in Fig. 1 offenbarte Batterie 1. Ein positiv ladbarer Pol 5 ist als eine Polkappe 9 ausgebildet, so dass an der Polkappe 9 ein Zwischenraum 10 zwischen dem positiv ladbaren Pol 5 und der Dichtung 25 entsteht. Die Dichtung 25 dichtet das Gehäuse 3 fluiddicht gegen die Polkappe 9 ab und wirkt außerdem als elektrische Isolierung. Der Pol 4 bzw. die Polkappe 9 sind auch Bestandteil des Gehäuses 3, weil diese die Batterie 1 ebenfalls umschließen. Eine Leiterplatte 26 leitet den elektrischen Strom von Elektroden (nicht dargestellt) durch ein Leiterband 27 zu dem positiv ladbaren Pol 5. Zentrisch in der Dichtung 25 und der Leiterplatte 27 ist ein Überdruckventil 21 angeordnet, welches ab einem bestimmten Druck im Innenraum 24 der Batterie 1 Gase oder Dämpfe in den Zwischenraum 10 leitet. Das Überdruckventil 21 ist als ein Bruchventil 28 ausgeführt. Das Bruchventil 28 ist an bestimmten Bereichen mit einer geringen Materialstärke versehen, so dass ab einem bestimmten Druck in diesen Bereichen die Wandung des Bruchventils 28 bricht und ein Durchbruch entsteht, durch den Gase oder Dämpfe aus dem Innenraum 24 in den Zwischenraum 10 strömen können (nicht dargestellt).A housing 3 made of metal surrounds the battery 1 disclosed in FIG. 1. A pole 5 which can be loaded in a positive manner is designed as a pole cap 9, so that a gap 10 is formed on the pole cap 9 between the positively loadable pole 5 and the seal 25. The seal 25 seals the housing 3 fluid-tight against the pole cap 9 and also acts as electrical insulation. The pole 4 and the pole cap 9 are also part of the housing 3, because they also enclose the battery 1. A printed circuit board 26 conducts the electric current from electrodes (not shown) through a conductor strip 27 to the positively chargeable pole 5. Centric in the seal 25 and the circuit board 27, a pressure relief valve 21 is arranged, which from a certain pressure in the interior 24 of the battery. 1 Gases or vapors in the gap 10 passes. The pressure relief valve 21 is designed as a break valve 28. The break valve 28 is provided at certain areas with a low material thickness, so that from a certain pressure in these areas, the wall of the fracture valve 28 breaks and a breakthrough occurs, can flow through the gases or vapors from the interior 24 into the gap 10 (not shown).
Die Polkappe 9 ist mit einer Öffnung 8 versehen. Eine an der Polkappe 9 befestigte Entgasungsleitung 7 umschließt die Öffnung 8 vollständig, so dass die gesamten aus dem Zwischenraum 10 durch die Öffnung 8 in die Entgasungsleitung 7 strömenden Gase oder Dämpfe in die Entgasungsleitung 7 geleitet werden. Die Entgasungsleitung 7 besteht aus Metall, Gummi oder Kunststoff und ist mit der Polkappe 9 vorzugsweise verschweißt. Die Öffnung 8 und die Entgasungsleitung 7 sind symmetrisch zu einer Symmetrieachse 22 oder einer Symmetrieebene 23 der Batterie 1 ausgebildet. Die Symmetrieebene 23 ist in Fig. 1 und 2 aufgrund der Perspektive lediglich als Gerade dargestellt. Ein Durchmesser 12 des Zwischenraumes 10 senkrecht zu der Längsachse 11 der Batterie 1 ist kleiner als ein Durchmesser 13 der Batterie 1 senkrecht zu der Längsachse 11 der Batterie 1. Die Entgasungsleitung 7 mündet in eine Sammelleitung 29, welche die Gase und Dämpfe weiter ableitet. Der elektrische Strom wird an der Polkappe 9 mittels eines elektrischen Leiters 6, vorzugsweise aus Kupfer, abgeleitet. Der elektrische Leiter 6 ist hierzu mit der Polkappe 9 verbunden. An der Unterseite der Batterie 1 ist ein negativ ladbarer Pol 4 ausgebildet, der auch Bestandteil des Gehäuses 3 ist. Im Bereich der an der oberen Seite der Batterie 1 befindlichen Polkappe 9 sind relativ große Wärmemengen an die Umgebung abzuleiten. Ein Kühlfluid 30, z. B. Luft, kann beispielsweise in axialer Richtung (Fig. 1) oder in radialer Richtung (Fig. 2) unmittelbar zu der Polkappe 9 geleitet werden, um die freizusetzende Wärme optimal ableiten zu können. Der elektrische Leiter 6 ist nicht nur stromleitend, sondern auch thermisch mit der Polkappe 9 verbunden, d. h. auch der elektrische Leiter 6 wird von der Polkappe 9 erwärmt. In besonders vorteilhafter Weise wird auch der elektrische Leiter 6 von dem Kühlfluid 30 Luft umströmt, so dass auch der elektrische Leiter 6 einen Beitrag zur Kühlung der Batterie 1 leisten kann. In Fig. 2 wird eine zweite Ausführungsform der erfindungsgemäßen Batterie 1 dargestellt. Die Entgasungsleitung 7 ist an einem Ende 14 mit einem als Außengewinde 16 ausgebildeten Gewinde 15 versehen. An der Polkappe 9 ist ein als Schraubenmutter 18 ausgeformtes Gewindeteil 17 vorhanden. Die Entgasungsleitung 7 und/oder der elektrische Leiter 6 kann damit mittels der Schraubenmutter 18 an der Polkappe 9 angeschraubt werden. Im Übrigen entspricht die zweite Ausführungsform gemäß Fig. 2 der ersten Ausführungsform gemäß Fig. 1.The polar cap 9 is provided with an opening 8. A degassing line 7 attached to the pole cap 9 completely encloses the opening 8, so that the entire gases or vapors flowing out of the gap 10 through the opening 8 into the degassing line 7 are conducted into the degassing line 7. The degassing 7 is made of metal, rubber or plastic and is preferably welded to the polar cap 9. The opening 8 and the degassing line 7 are formed symmetrically to an axis of symmetry 22 or a plane of symmetry 23 of the battery 1. The plane of symmetry 23 is shown in Fig. 1 and 2 due to the perspective only as a straight line. A diameter 12 of the gap 10 perpendicular to the longitudinal axis 11 of the battery 1 is smaller than a diameter 13 of the battery 1 perpendicular to the longitudinal axis 11 of the battery 1. The degassing 7 opens into a manifold 29, which further dissipates the gases and vapors. The electric current is at the pole cap 9 by means of an electrical conductor 6, preferably derived from copper. The electrical conductor 6 is connected to the pole cap 9 for this purpose. At the bottom of the battery 1, a negatively chargeable pole 4 is formed, which is also part of the housing 3. In the area of the pole cap 9 located on the upper side of the battery 1, relatively large amounts of heat are to be dissipated to the environment. A cooling fluid 30, z. As air, for example, in the axial direction (Fig. 1) or in the radial direction (Fig. 2) are passed directly to the polar cap 9 in order to derive the heat to be released optimally. The electrical conductor 6 is not only electrically conductive, but also thermally connected to the pole cap 9, that is, the electrical conductor 6 is heated by the polar cap 9. In a particularly advantageous manner, the electrical conductor 6 is also flowed around by the cooling fluid 30, so that the electrical conductor 6 can also contribute to the cooling of the battery 1. 2, a second embodiment of the battery 1 according to the invention is shown. The degassing line 7 is provided at one end 14 with a threaded thread 15 designed as an external thread 16. At the pole cap 9 is formed as a nut 18 threaded portion 17 is present. The degassing line 7 and / or the electrical conductor 6 can thus be screwed by means of the nut 18 to the pole cap 9. Otherwise, the second embodiment according to FIG. 2 corresponds to the first embodiment according to FIG. 1.
In einer weiteren, nicht dargestellten Ausführungsform ist an der Polkappe 9 ein Rohrstutzen vorhanden, auf den eine als Schlauch ausgebildete Entgasungsleitung 7 aufgesteckt werden kann.In a further, not shown embodiment, a pipe socket is provided on the pole cap 9, on which a degassing line 7 designed as a hose can be plugged.
In Fig. 3 ist ein Längsschnitt eines erfindungsgemäßen Batteriemodulsystems 20 mit mehreren Batterien 1 dargestellt. In dem Batteriemodulsystem 20 sind mehrere Batterien 1 zusammengefasst, um eine bestimmte elektrische Leistung zu realisieren. Zum Ableiten der gegebenenfalls in den Batterien 1 entstehenden Gase oder Dämpfe sind die Entgasungsleitungen 7 der Batterien 1 mittels der Sammelleitung 29 miteinander verbunden, um die Gase und Dämpfe der Batterien 1 in dem Batteriemodulsystem 20 zu sammeln und zentral ableiten zu können. Außerdem wird der elektrische Strom an der Batterie 1 mittels des elektrischen Leiters 6 abgeleitet. In das Batteriemodulsystem 20 kann ein Kühlfluid zum Kühlen der Batterien 1 eingeleitet werden (nicht dargestellt).FIG. 3 shows a longitudinal section of a battery module system 20 according to the invention with a plurality of batteries 1. In the battery module system 20, a plurality of batteries 1 are combined to realize a certain electric power. To derive the gases or vapors possibly formed in the batteries 1, the degassing lines 7 of the batteries 1 are connected to one another by means of the collecting line 29, in order to be able to collect and discharge the gases and vapors of the batteries 1 in the battery module system 20. In addition, the electric current is discharged to the battery 1 by means of the electrical conductor 6. A cooling fluid for cooling the batteries 1 may be introduced into the battery module system 20 (not shown).
Die Einzelheiten der verschiedenen Ausführungsbeispiele sind miteinander kombinierbar, sofern nichts Gegenteiliges erwähnt wird.The details of the various embodiments can be combined with each other, unless otherwise stated.
Insgesamt betrachtet können mit der erfindungsgemäßen Batterie 1 und dem erfindungsgemäßen Batteriemodulsystem 20 mit mehreren Batterien 1 erhebliche Vorteile erzielt werden. Die Polkappe 9 braucht nicht mit einer aufwendigen Sammelwandung zur Bildung eines Sammelraumes versehen werden, so dass die Batterie 1 konstruktiv einfach und in der Herstellung preiswert ist. In besonders vorteilhafter Weise kann ein Kühlfluid, z. B. Luft, die Polkappe 9 und den elektrischen Leiter 6 unmittelbar umströmen, so dass die von der Polkappe 9 und dem elektrischen Leiter 6 abzuleitende Wärme von dem Kühlfluid 30 gut ableitbar ist, weil kein Sammelraum vorhanden ist der als thermische Isolierung wirkt. Overall, considerable advantages can be achieved with the battery 1 according to the invention and the battery module system 20 according to the invention with a plurality of batteries 1. The pole cap 9 need not be provided with a complex Sammelwandung to form a collecting space, so that the battery 1 is structurally simple and inexpensive to manufacture. In a particularly advantageous manner, a cooling fluid, for. As air, the polar cap 9 and the electrical conductor 6 flow around directly, so that the heat dissipated from the polar cap 9 and the electrical conductor 6 heat from the cooling fluid 30 is good, because no collecting space is present which acts as a thermal insulation.

Claims

Ansprüche claims
1. Batterie (1), insbesondere Batteriezelle, umfassend ein Gehäuse (3), einen negativ ladbaren Pol (4), einen positiv ladbaren Pol (5), einen mit dem negativ ladbaren Pol (4) und/oder positiv ladbaren Pol (5) verbundenen elektrischen Leiter (6) zum Ableiten eines elektrischen Stromes und eine Entgasungsleitung (7) zum Ableiten von Gas oder Dämpfen aus der Batterie (D,1. Battery (1), in particular battery cell, comprising a housing (3), a negatively chargeable pole (4), a positive loadable pole (5), one with the negatively chargeable pole (4) and / or positively chargeable pole (5 ) connected electrical conductor (6) for discharging an electric current and a degassing line (7) for discharging gas or vapors from the battery (D,
dadurch gekennzeichnet, dasscharacterized in that
der negativ ladbare Pol (4) und/oder der positiv ladbare Pol (5) und/oder das Gehäuse (3) mit einer Öffnung (8) versehen ist und die Entgasungsleitung (7) dahingehend mit dem negativ ladbaren Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder mit dem Gehäuse (3) verbunden ist, dass das Gas oder die Dämpfe unmittelbar aus der Öffnung (8) in die Entgasungsleitung (7) leitbar ist.the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or the housing (3) is provided with an opening (8) and the degassing line (7) is connected to the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or connected to the housing (3), that the gas or vapors directly from the opening (8) in the degassing line (7) is conductive.
2. Batterie nach Anspruch 1,2. Battery according to claim 1,
dadurch gekennzeichnet, dasscharacterized in that
die Öffnung (8) von der Entgasungsleitung (7) vollständig umschlossen ist, so dass das gesamte aus der Öffnung (8) austretende Gas in die Entgasungsleitung (7) einleitbar ist.the opening (8) of the degassing line (7) is completely enclosed, so that the entire gas emerging from the opening (8) in the degassing line (7) can be introduced.
3. Batterie nach Anspruch 1 oder 2,3. Battery according to claim 1 or 2,
dadurch gekennzeichnet, dasscharacterized in that
die Entgasungsleitung (7) unmittelbar mit dem negativ ladbaren Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder mit dem Gehäuse (3) verbunden ist. the degassing line (7) is connected directly to the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or to the housing (3).
4. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,4. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
der negativ ladbare Pol (4) und/oder der positiv ladbare Pol (5) als Polkappen (9) ausgebildet sind, so dass ein Zwischenraum (10) zum Ableiten und/oder Sammeln des Gases oder der Dämpfe vorhanden ist.the negatively chargeable pole (4) and / or the positively chargeable pole (5) are designed as pole caps (9), so that an intermediate space (10) for discharging and / or collecting the gas or the vapors is present.
5. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,5. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
der elektrische Leiter (6) und/oder die Entgasungsleitung (7) und/oder der negativ ladbare Pol (4) und/oder der positiv ladbaren Pol (5) und/oder das Gehäuse (3) dahingehend ausgebildet sind, dass der elektrische Leiter (6) ausschließlich außerhalb der Entgasungsleitung (7) und/oder des Zwischenraumes (10) und/oder des Gehäuses (3) ausgebildet ist.the electrical conductor (6) and / or the degassing line (7) and / or the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or the housing (3) are designed such that the electrical conductor (6) is formed only outside the degassing line (7) and / or the intermediate space (10) and / or the housing (3).
6. Batterie nach Anspruch 4 oder 5,6. Battery according to claim 4 or 5,
dadurch gekennzeichnet, dasscharacterized in that
der Durchmesser (12) des Zwischenraumes (10) senkrecht zu einer Längsachse (11) der Batterie (1) kleiner ist als der Durchmesser (13) der Batterie (1) senkrecht zu der Längsachse (11) der Batterie (1).the diameter (12) of the intermediate space (10) perpendicular to a longitudinal axis (11) of the battery (1) is smaller than the diameter (13) of the battery (1) perpendicular to the longitudinal axis (11) of the battery (1).
7. Batterie nach Anspruch 6,7. Battery according to claim 6,
dadurch gekennzeichnet, dasscharacterized in that
der Durchmesser (12) des Zwischenraumes (10) weniger als 60%, insbesondere weniger als 40%, des Durchmessers (13) der Batterie (1) beträgt.the diameter (12) of the intermediate space (10) is less than 60%, in particular less than 40%, of the diameter (13) of the battery (1).
8. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,8. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dass die Entgasungsleitung (7) aus Metall, Gummi oder Kunststoff besteht.characterized in that the degassing line (7) consists of metal, rubber or plastic.
9. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,9. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
die Entgasungsleitung (7) an einem Ende (14) mit einem Gewinde (15), insbesondere Außengewinde (16), versehen ist und ein mit dem negativ ladbare Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder dem Gehäuse (3) verbundenes Gewindeteil (17), insbesondere eine Schraubenmutter (18), mit einem Gewinde (15), insbesonderethe degassing line (7) is provided at one end (14) with a thread (15), in particular external thread (16), and one with the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or the Housing (3) connected threaded part (17), in particular a nut (18), with a thread (15), in particular
Innengewinde (19), ausgebildet ist, so dass die Entgasungsleitung (7) und/oder der elektrische Leiter (6) mit dem Gewindeteil (17) verschraubbar ist.Internal thread (19) is formed, so that the degassing line (7) and / or the electrical conductor (6) with the threaded part (17) can be screwed.
10. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,10. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
die Entgasungsleitung (7) mit dem negativ ladbare Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder dem Gehäuse (3) mittels Schweißen, Schrauben oder Pressen verbunden ist.the degassing line (7) is connected to the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or the housing (3) by means of welding, screwing or pressing.
11. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,11. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
die Entgasungsleitung (7) symmetrisch zu einer Symmetrieebene (22) oder einer Symmetrieachse (23) der Batterie (1) angeordnet und/oder ausgebildet ist.the degassing line (7) is arranged and / or formed symmetrically with respect to a plane of symmetry (22) or an axis of symmetry (23) of the battery (1).
12. Batterie nach einem oder mehreren der vorhergehenden Ansprüche,12. Battery according to one or more of the preceding claims,
dadurch gekennzeichnet, dasscharacterized in that
die Batterie (1) eine Lithium- Ionen- Batterie (2) oder eine Nickel- Metallhydrid- Batterie ist.the battery (1) is a lithium ion battery (2) or a nickel metal hydride battery.
13. Batteriemodulsystem (20) mit mehreren Batterien (1), dadurch gekennzeichnet, dass13. Battery module system (20) with a plurality of batteries (1), characterized in that
das Batteriemodulsystem (20) wenigstens eine Batterie (1) gemäß einem oder mehreren der Ansprüche 1 bis 12 umfasst.the battery module system (20) comprises at least one battery (1) according to one or more of claims 1 to 12.
14. Verfahren zur Kühlung von wenigstens einer Batterie (1) gemäß einem oder mehreren der Ansprüche 1 bis 13,14. A method for cooling at least one battery (1) according to one or more of claims 1 to 13,
dadurch gekennzeichnet, dasscharacterized in that
die wenigstens eine Batterie (1) an dem negativ ladbare Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder dem Gehäuse (3) unmittelbar von einem an dem negativ ladbare Pol (4) und/oder dem positiv ladbaren Pol (5) und/oder dem Gehäuse (3) strömenden Kühlfluid (30) gekühlt wird.the at least one battery (1) on the negatively chargeable pole (4) and / or the positively chargeable pole (5) and / or the housing (3) directly from one to the negatively chargeable pole (4) and / or the positively chargeable Pol (5) and / or the housing (3) flowing cooling fluid (30) is cooled.
15. Verfahren nach Anspruch 14,15. The method according to claim 14,
dadurch gekennzeichnet, dasscharacterized in that
das Kühlfluid (30) die Batterie (1) in axialer oder in radialer Richtung umströmt.the cooling fluid (30) flows around the battery (1) in the axial or in the radial direction.
16. Verfahren nach Anspruch 14 oder 15,16. The method according to claim 14 or 15,
dadurch gekennzeichnet, dasscharacterized in that
das Kühlfluid (30) Luft ist. the cooling fluid (30) is air.
PCT/EP2009/050477 2008-02-06 2009-01-16 Battery comprising a degassing unit WO2009098115A1 (en)

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DE102011001921A1 (en) * 2011-04-08 2012-10-11 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Battery e.g. traction battery for e.g. hybrid car, has battery housing whose bottom portion is provided to receive electrical non conductive liquid in which battery cells are immersed with poles
DE102012217383A1 (en) * 2012-09-26 2014-03-27 Robert Bosch Gmbh System for degassing of accumulators
DE102012111817B4 (en) * 2012-12-05 2024-02-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft motor vehicle
DE102013213776A1 (en) * 2013-07-15 2015-01-15 Robert Bosch Gmbh Method for producing a connection of a degassing device to at least one battery cell and battery system
DE102013216071A1 (en) * 2013-08-14 2015-02-19 Robert Bosch Gmbh Galvanic system comprising a plurality of galvanic cells and a degassing device
DE102014200194A1 (en) 2014-01-09 2015-07-09 Robert Bosch Gmbh Battery system with at least one battery cell and a degassing device
DE102014202348A1 (en) 2014-02-10 2015-08-13 Robert Bosch Gmbh Apparatus and method for increasing safety in the use of battery systems
DE102021005751A1 (en) 2021-11-19 2023-05-25 Volkswagen Aktiengesellschaft battery system

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