DE102008010821A1 - Battery module i.e. high-capacity battery, for mild-hybrid-drive, has cell module gaps formed between cell modules for guiding cooling medium from cylinder orifice to exhaust port and variably adjusted - Google Patents
Battery module i.e. high-capacity battery, for mild-hybrid-drive, has cell module gaps formed between cell modules for guiding cooling medium from cylinder orifice to exhaust port and variably adjusted Download PDFInfo
- Publication number
- DE102008010821A1 DE102008010821A1 DE200810010821 DE102008010821A DE102008010821A1 DE 102008010821 A1 DE102008010821 A1 DE 102008010821A1 DE 200810010821 DE200810010821 DE 200810010821 DE 102008010821 A DE102008010821 A DE 102008010821A DE 102008010821 A1 DE102008010821 A1 DE 102008010821A1
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- Germany
- Prior art keywords
- cell
- battery module
- cell modules
- module
- layers
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M10/62—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
- 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
- H01M10/643—Cylindrical 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
- H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
- H01M10/652—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations characterised by gradients
-
- 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
- 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
- H01M10/6567—Liquids
-
- 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
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Die Erfindung betrifft ein Batteriemodul mit mehreren Zellmodulen gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a battery module with a plurality of cell modules according to the Preamble of claim 1.
Üblicherweise werden Batteriemodule (auch kurz Batterie genannt), insbesondere Hochleistungsbatterien für Mild-Hybrid-Antriebe, gekühlt, um eine entstehende Verlustwärme abzuführen. Dazu sind im Stand der Technik bereits verschiedene Verfahren und Vorrichtungen bekannt.Usually are battery modules (also called battery for short), in particular High performance batteries for mild hybrid drives, cooled, to dissipate any resulting heat loss. To are already in the prior art, various methods and devices known.
Aus
der
Weiterhin
wird in der
Nachteilig an denen im Stand der Technik bekannten Verfahren und Vorrichtungen ist jedoch, dass lediglich eine ungleichmäßige Verteilung des Kühlmediums zwischen den beispielsweise mehrlagig angeordneten Einzelzellen erreicht wird, woraus verschiedene Temperaturniveaus und eine nicht optimale Kühlung der Batteriemodul resultieren.adversely those known in the art known methods and devices However, that is just an uneven one Distribution of the cooling medium between the example multi-layered single cells is achieved, from which different Temperature levels and not optimal cooling of the battery module result.
Der Erfindung liegt daher die Aufgabe zugrunde, ein verbessertes Batteriemodul anzugeben, welche insbesondere die im Stand der Technik angegebenen Nachteile überwindet sowie einfach und kostengünstig herstellbar ist.Of the The invention is therefore based on the object, an improved battery module indicate, in particular those specified in the prior art Overcomes disadvantages as well as simply and inexpensively can be produced.
Die Aufgabe wird erfindungsgemäß mit einem Batteriemodul gelöst, welche die im Anspruch 1 angegebenen Merkmale aufweist.The Task is according to the invention with a battery module having dissolved, which has the features specified in claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.advantageous Embodiments of the invention are the subject of the dependent claims.
Bei dem erfindungsgemäßen Batteriemodul mit mehreren Zellmodulen, die elektrisch parallel und/oder seriell verschaltet sind und einen Zellverbund mit mehreren in mindestens einer Lage angeordneten Zellmodulen bilden, ist dem in einem Batteriegehäuse angeordneten Zellverbund über eine Einströmöffnung ein Kühlmedium zuführbar. Erfindungsgemäß sind zu einer Führung des Kühlmediums von der Einströmöffnung zu zumindest einer Ausströmöffnung zwischen den Zellmodulen gebildete Zellmodulzwischenräume variabel einstellbar. Dadurch ist es in vorteilhafter Weise möglich, einen Durchsatz des Kühlmediums und Strömungsverhältnisse ohne eine Anordnung zusätzlicher Einrichtungen zu steuern.at the battery module according to the invention with several Cell modules that interconnects electrically in parallel and / or in series are and a cell composite with multiple in at least one location form arranged cell modules is that in a battery case arranged cell assembly via an inflow opening a cooling medium can be supplied. According to the invention to a guide of the cooling medium from the inlet opening to at least one outflow opening between the Cell modules formed cell module spaces variable adjustable. This makes it possible in an advantageous manner, a throughput of the Cooling medium and flow conditions without controlling an array of additional facilities.
In einer Weiterbildung der Erfindung ist die Einströmöffnung zentriert angeordnet. Zwischen der Einströmöffnung und zumindest einer Ausströmöffnung ist mindestens ein Strömungskanal zur Führung des Kühlmediums vorgesehen, wobei der Strömungskanal in einer Ausgestaltung der Erfindung aus zwei in einem Keilwinkel zueinander angeordneten Lagen von Zellmodulen gebildet ist und in Strömungsrichtung des Kühlmediums verjüngend ausgebildet ist. Die Lagen sind vorzugsweise jeweils aus mehreren horizontal in einer Reihe angeordneten Zellmodulen gebildet und in einem Lagewinkel in dem Gehäuse anordbar. Daraus resultiert der Vorteil, dass eine gleichmäßige Verteilung des Kühlmediums im gesamten Batteriegehäuse erreicht wird, so dass ein niedriger Temperaturgradient über die Lagen der Zellmodule erzielt wird.In a development of the invention is the inflow opening centered. Between the inlet opening and at least one outflow opening is at least a flow channel for guiding the cooling medium provided, wherein the flow channel in one embodiment of the invention of two arranged in a wedge angle to each other Layers of cell modules is formed and in the flow direction the cooling medium is tapered. The Layers are preferably each of several horizontally in one Row arranged cell modules formed and in a position angle can be arranged in the housing. This results in the advantage that a uniform distribution of the cooling medium in the entire battery case is reached, leaving a lower Temperature gradient across the layers of the cell modules achieved becomes.
Gemäß sinnvoller Weiterführungen sind mehrere Einströmöffnungen zu einem Einströmen und/oder mehrere Ausströmöffnungen zu einem Ausströmen des Kühlmediums vorgesehen, was zu einem erhöhten Kühlmitteldurchsatz und einer weiteren Verbesserung der gleichmäßigen Verteilung des Kühlmittels und daraus folgend zu einer effizienteren Kühlung der Batteriemodul führt.According to more meaningful Continuations are multiple inflow to an inflow and / or multiple outflow openings provided for an outflow of the cooling medium, resulting in increased coolant flow rate and a further improvement of uniformity Distribution of the coolant and consequently to a more efficient cooling of the battery module leads.
Ferner ist eine Zellmodulposition einer und/oder mehrerer Zellmodule einer und/oder mehrerer Lagen variabel einstellbar, wodurch ein Abstand zwischen Zellmodulen einer Lage und ein Abstand zwischen Zellmodulen verschiedener, insbesondere benachbarter Lagen variabel einstellbar ist. Zusätzlich kann bei konstantem Abstand zwischen Zellmodulen einer Lage mittels einer Variation der Zellmodulposition einer und/oder mehrerer Zellmodule einer und/oder mehrerer Lagen ein Abstand zwischen Zellmodulen verschiedener, insbesondere benachbarter Lagen variabel einstellbar sein.Further is a cell module position of one and / or several cell modules of one and / or several layers variably adjustable, whereby a distance between Cell modules of a layer and a distance between cell modules of different, in particular adjacent layers is variably adjustable. additionally can by means of a constant distance between cell modules of a layer a variation of the cell module position of one and / or more cell modules one and / or more layers a distance between cell modules of different, in particular adjacent layers can be variably adjusted.
Durch die variable Zellmodulposition und die daraus folgende Variabilität der Abstände zwischen den Zellmodulen sind ein Keilwinkel des Strömungskanals und durch die Variabilität der Position der Lagen der Zellmodule der Lagewinkel variabel einstellbar, so dass eine Anpassung des Stromes des Kühlmediums an Temperaturverhältnisse des Batteriemoduls und/oder der Zellmodule ausführbar ist.Due to the variable cell module position and the resulting variability of the distances between the cell modules, a wedge angle of the flow channel and the variability of the position of the layers of the cell modules of the position angle are variably adjustable bar, so that an adjustment of the flow of the cooling medium to temperature conditions of the battery module and / or the cell modules is executable.
Weiterhin sind mittels der Variation der Zellmodulposition einer und/oder mehrerer Zeitmodule einer und/oder mehrerer Lagen Abmessungen der Zellmodulzwischenräume einer und/oder verschiedener, insbesondere benachbarter Lagen und ein Strömungswiderstand variabel einstellbar, wodurch wiederum die Strömung des Kühlmediums beeinflussbar und an Kühlerfordernisse des Batteriemoduls anpassbar ist.Farther are by means of the variation of the cell module position one and / or several time modules of one and / or more layers dimensions of the cell module interspaces one and / or different, in particular adjacent layers and a flow resistance variably adjustable, which in turn the flow of the cooling medium can be influenced and is adaptable to cooling requirements of the battery module.
In einer vorteilhaften Ausgestaltung der Erfindung sind Mittel zu einer temperaturabhängigen Variation der Zellmodulposition vorgesehen, wobei diese aus Aktuatoren und/oder aus einer sich bei Wärmeeinwirkung ausdehnenden Flüssigkeit gebildet sind. Anhand dieser Mittel ist eine zuverlässige Veränderung bzw. Einstellung der Zellmodulposition möglich.In an advantageous embodiment of the invention are means for a temperature-dependent variation of the cell module position provided These are made of actuators and / or from a heat are formed expansive liquid. On the basis of these means is a reliable change or attitude the cell module position possible.
Gemäß einer Weiterbildung der Erfindung ist ein Zellmodul aus einer oder mehreren elektrisch parallel und/oder seriell verschalteten Einzelzellen gebildet, wodurch in einfacher Art und Weise eine benötigte Batteriespannung- und/oder -leistung erreicht wird.According to one Development of the invention is a cell module of one or more electrically parallel and / or series-connected single cells formed, which in a simple manner a required Battery voltage and / or performance is achieved.
Es ist weiterhin möglich, dass das Kühlmedium Frischluft oder eine Flüssigkeit ist, so dass eine variable Anwendung und Kühlung des Batteriemoduls je nach Einsatzart und Einsatzort ermöglicht wird.It is also possible that the cooling medium fresh air or a liquid, allowing a variable application and cooling the battery module depending on the application and location is possible.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand einer Zeichnung näher erläutert.embodiments The invention will be described below with reference to a drawing explained.
Dabei zeigt:there shows:
Die
Zellmodule
Dabei
sind mehrere Zellmodule
Die
Lagen L sind in einem Lagewinkel β1, β2 zu einer gedachten Mittellinie M in dem
Batteriegehäuse
Weiterhin
ist bei dem dargestellten Ausführungsbeispiel der Erfindung
eine zentriert angeordnete Einströmöffnung
Zu
einer Führung des Kühlmediums K zwischen der Einströmöffnung
Daraus
resultiert ein in Strömungsrichtung anwachsender Strömungswiderstand,
der in vorteilhafter Weise dazu führt, dass das Kühlmedium
K durch zwischen den Zellmodulen
Bei
einer Verwendung von mehr als einer Einströmöffnung
In
einer weiteren Ausgestaltung der Erfindung besteht die Möglichkeit,
dass mehr als zwei Ausströmöffnungen
Erfindungsgemäß sind
zu einer Führung des Kühlmediums K von der Einströmöffnung
Dazu sind gemäß einer Weiterbildung der Erfindung Mittel zu einer temperaturabhängigen Variation der Zellmodulposition vorgesehen. Dabei handelt es sich insbesondere um Akkumulatoren, Stellglieder, Stellmotoren, sich bei Wärme ausdehnende Flüssigkeiten oder dgl. In besondere Weise können hierzu bspw. einzelne Lagen von Zellen oder Teile davon an ihrem einen Ende schwenkbar und an ihrem anderen Ende mit einem Stellglied verschiebbar angeordnet sein. Durch diese Ausbildung können dann die entsprechenden einzelnen Lagen von Zellen gezielt und vorzugsweise definiert um das eine Ende geschwenkt und damit die entsprechenden Winkel verändert werden.To are according to an embodiment of the invention means to a temperature-dependent variation of the cell module position intended. These are in particular accumulators, Actuators, actuators, heat-expanding fluids or the like. In a particular way, this can, for example, individual Layers of cells or parts thereof pivotable at one end and slidably disposed at its other end with an actuator be. Through this training then the appropriate individual layers of cells targeted and preferably defined to one end pivoted and thus changed the corresponding angle become.
Mittels
der Variation der Zellmodulposition einer und/oder mehrerer Zellmodule
Weiterhin besteht die Möglichkeit, dass der Keilwinkel α des Strömungskanals S insbesondere einstellbar ist.Farther there is the possibility that the wedge angle α of Flow channel S in particular is adjustable.
Aus
der beschriebenen Anordnung und Variabilität der Zellmodule
- 11
- Zellmodulcell module
- 22
- Batteriegehäusebattery case
- 33
- Einströmöffnunginflow
- 44
- Ausströmöffnungoutflow
- aa
- Abstanddistance
- bb
- Abstanddistance
- BB
- Batteriemodulbattery module
- KK
- Kühlmediumcooling medium
- LL
- Lagendocuments
- MM
- Mittelliniecenter line
- SS
- Strömungskanalflow channel
- ZZ
- Zellverbundcell assembly
- ZRZR
- ZellmodulzwischenraumCell module space
- αα
- Keilwinkelwedge angle
- β1 β 1
- Lagewinkelposition angle
- β2 β 2
- Lagewinkelposition angle
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 4407156 C1 [0003] - DE 4407156 C1 [0003]
- - US 2006115716 A1 [0004] US 2006115716 A1 [0004]
Claims (21)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810010821 DE102008010821A1 (en) | 2008-02-23 | 2008-02-23 | Battery module i.e. high-capacity battery, for mild-hybrid-drive, has cell module gaps formed between cell modules for guiding cooling medium from cylinder orifice to exhaust port and variably adjusted |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810010821 DE102008010821A1 (en) | 2008-02-23 | 2008-02-23 | Battery module i.e. high-capacity battery, for mild-hybrid-drive, has cell module gaps formed between cell modules for guiding cooling medium from cylinder orifice to exhaust port and variably adjusted |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008010821A1 true DE102008010821A1 (en) | 2009-08-27 |
Family
ID=40896697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810010821 Withdrawn DE102008010821A1 (en) | 2008-02-23 | 2008-02-23 | Battery module i.e. high-capacity battery, for mild-hybrid-drive, has cell module gaps formed between cell modules for guiding cooling medium from cylinder orifice to exhaust port and variably adjusted |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008010821A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2965756A1 (en) * | 2010-10-07 | 2012-04-13 | Renault Sa | BATTERY COMPARTMENT FOR A VEHICLE |
US9337457B2 (en) | 2010-06-24 | 2016-05-10 | Samsung Sdi Co., Ltd. | Battery assembly with cooling |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407156C1 (en) | 1994-03-04 | 1995-06-08 | Deutsche Automobilgesellsch | Electric storage battery housing for electrically-driven automobile |
US20060115716A1 (en) | 2004-11-30 | 2006-06-01 | Kim Tae-Yong | Battery module |
-
2008
- 2008-02-23 DE DE200810010821 patent/DE102008010821A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4407156C1 (en) | 1994-03-04 | 1995-06-08 | Deutsche Automobilgesellsch | Electric storage battery housing for electrically-driven automobile |
US20060115716A1 (en) | 2004-11-30 | 2006-06-01 | Kim Tae-Yong | Battery module |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9337457B2 (en) | 2010-06-24 | 2016-05-10 | Samsung Sdi Co., Ltd. | Battery assembly with cooling |
FR2965756A1 (en) * | 2010-10-07 | 2012-04-13 | Renault Sa | BATTERY COMPARTMENT FOR A VEHICLE |
WO2012045978A3 (en) * | 2010-10-07 | 2012-08-30 | Renault S.A.S. | Battery compartment for a vehicle |
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