WO2013056878A1 - Battery module with a temperature control unit - Google Patents

Battery module with a temperature control unit Download PDF

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Publication number
WO2013056878A1
WO2013056878A1 PCT/EP2012/066268 EP2012066268W WO2013056878A1 WO 2013056878 A1 WO2013056878 A1 WO 2013056878A1 EP 2012066268 W EP2012066268 W EP 2012066268W WO 2013056878 A1 WO2013056878 A1 WO 2013056878A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery module
cells
temperature control
lithium
control unit
Prior art date
Application number
PCT/EP2012/066268
Other languages
German (de)
French (fr)
Inventor
Xiaofeng Yan
Christian Pankiewitz
Sylvain Guenon
Christian Loew
Achim Schmidt
Original Assignee
Robert Bosch Gmbh
Samsung Sdi Co., Ltd.
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, Samsung Sdi Co., Ltd. filed Critical Robert Bosch Gmbh
Publication of WO2013056878A1 publication Critical patent/WO2013056878A1/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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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 module with a plurality of cells, in particular lithium-ion cells and a temperature control unit for
  • the invention further relates to an electric motor vehicle or a hybrid vehicle containing the battery module.
  • State of the art
  • a heat sink or heat source in a battery module can be realized by means of a body through which thermal contact is made with the battery cells.
  • As flowing fluid is a
  • the cooling device comprises a cooling and a transfer plate, which is designed as a so-called head cooling on a pole side of the combined into a battery pack individual cells.
  • the cooling plate carries in a paired assignment routed loops of a cooling tube, which are traversed by a coolant.
  • An elastic tension mat and a cell connector board are located between the cooling plate and the transfer plate, wherein the heat transfer from the pole sides of the individual cells in the transfer plate is to be additionally supported by a heat conducting foil.
  • the invention relates to a battery module with a plurality of cells, in particular lithium-ion cells and a temperature control unit for
  • the battery module is characterized in that the temperature control unit includes a pipe which is formed of a flexible material. It proves to be advantageous in this case that the use of a flexible material makes it possible to produce the thermal contact between the cells and the pipeline carrying the temperature control medium in a very reliable and simple manner.
  • the pipeline is firmly attached to the lithium-ion cells.
  • gaps that occur due to geometric tolerances between the lithium-ion cells and the pipe can be minimized and it can be the required quality of contact of the tubing of the temperature control unit with the lithium-ion cells can be improved.
  • the pipeline forms a flexible tube bundle.
  • the pipeline is so for example
  • bent meander-shaped and the lithium-ion cells are arranged on the resulting tube bundle so that as large as possible Contact surface between the individual turns of the tube bundle and the adjacent lithium-ion cells is given.
  • a preferred embodiment of the invention provides that the pipeline has a rectangular or compressed circular cross-section. At the condition caused by this shaping flat side of the pipeline are the lithium-ion cells, so that the ready for the heat exchange contact surface is increased.
  • the invention further provides an electric motor vehicle or a hybrid vehicle including the battery module described above.
  • Figure 1 is an isometric view of a flexible pipe
  • FIG. 2 shows an arrangement of a plurality of lithium-ion cells on the pipeline of FIG. 1.
  • FIG. 1 a pipeline 10 bent in a meandering manner into a tube bundle is shown, which is part of a temperature control unit of a battery module.
  • Pipeline 10 is hollow and is traversed by a fluid.
  • the pipe 10 is made of a flexible material, so that the tube bundle in the x and z direction is deformable, which is indicated by the arrows.
  • FIG. 2 outlines the position of lithium-ion cells 20 of the battery module on the pipe 10 bent into a tube bundle.
  • Each lithium-ion cell 20 lies in its bottom region on a section of the meandering curved pipe 10 of the tempering device for the purpose of heating or cooling it at.
  • the pipe 10 has a rectangular cross-section, with a flat side of the pipe 10 directly to the lithium Ion cell 20 is adjacent. Due to the flexible construction of the pipe 10, the tube bundle gets its high ductility and flexibility. This allows the tube bundle to better conform to the surface of the lithium-ion cells 20 and thus maximize the contact area available for heat exchange.
  • the invention can be used in any battery modules and in general
  • Charge storage modules for cooling and / or temperature of the cells are used.

Landscapes

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

Abstract

The invention relates to a battery module having a plurality of lithium-ion-cells (20) and a temperature control unit for controlling the temperature of the lithium-ion-cells (20). Said battery module is characterised in that the temperature control unit contains a pipe (10) which is formed from a flexible material.

Description

Beschreibung  description
Titel title
Batteriemodul mit einer Temperiereinheit Die vorliegende Erfindung betrifft ein Batteriemodul mit einer Vielzahl von Zellen, insbesondere Lithium-Ionen-Zellen und einer Temperiereinheit zur  The present invention relates to a battery module with a plurality of cells, in particular lithium-ion cells and a temperature control unit for
Zelltemperierung. Die Erfindung betrifft ferner ein Elektrokraftfahrzeug oder ein Hybridfahrzeug, welches das Batteriemodul enthält. Stand der Technik Zelltemperierung. The invention further relates to an electric motor vehicle or a hybrid vehicle containing the battery module. State of the art
Um die Sicherheit und Funktion von Lithium-Ionen-Batteriemodulen zu gewährleisten, ist es erforderlich, die Batteriezellen innerhalb eines To ensure the safety and function of lithium-ion battery modules, it is necessary to have the battery cells within one
vorgegebenen Temperaturbereiches zu betreiben. Während des Betriebs der Batteriezellen entsteht einerseits Wärme, die abgeführt werden muss, um einoperate at predetermined temperature range. During operation of the battery cells, on the one hand, heat that has to be dissipated is created
Aufheizen der Batteriezelle über eine kritische Betriebstemperatur zu vermeiden. Andererseits müssen die Batteriezellen bei tiefen Temperaturen auf eine To avoid heating the battery cell above a critical operating temperature. On the other hand, the battery cells at low temperatures on one
Mindesttemperatur aufgeheizt werden. Grundsätzlich kann eine Wärmesenke bzw. Wärmequelle in einem Batteriemodul mittels eines durchströmten Körpers realisiert werden, der mit den Batteriezellen in thermischem Kontakt steht. Als durchströmendes Fluid ist ein Minimum temperature to be heated. In principle, a heat sink or heat source in a battery module can be realized by means of a body through which thermal contact is made with the battery cells. As flowing fluid is a
Wasser-Glykol-Gemisch, ein Kältemittel oder Luft denkbar. Zur Realisierung der Heiz-/Kühlfunktion ist eine Minimierung des Wärmeübergangswiderstandes zwischen den Batteriezellen und den Kühlplatten notwendig. Water-glycol mixture, a refrigerant or air conceivable. To realize the heating / cooling function, a minimization of the heat transfer resistance between the battery cells and the cooling plates is necessary.
Spalten an den Kontaktflächen müssen zur Sicherung eines guten Columns on the contact surfaces need to secure a good
Kontaktzustandes möglichst vermieden werden. Eine Möglichkeit ist die Contact state are avoided as possible. One possibility is the
Einbringung eines zusätzlichen, Wärme leitenden Materials. Dieses kann eine Wärme leitende Folie, eine Wärmeleitpaste oder ein Wärme leitender Kleber sein. Alle Varianten sind jedoch mit zusätzlichen Kosten für das Material und den Fertigungsprozess verbunden. Incorporation of an additional, heat-conducting material. This may be a heat-conducting film, a thermal grease or a heat conductive adhesive be. All variants, however, are associated with additional costs for the material and the manufacturing process.
Aus DE 10 2008 034 875 A1 ist eine Batterie, insbesondere eine From DE 10 2008 034 875 A1 is a battery, in particular a
Fahrzeugbatterie bekannt, die als Lithium-Ionen-Batterie eine polseitig auf denVehicle battery known as the lithium-ion battery a pole on the
Einzelzellen angeordnete Kühlvorrichtung besitzt. Die Kühlvorrichtung umfasst eine Kühl- und eine Übertragungsplatte, die als sogenannte Kopfkühlung an einer Polseite der zu einem Batteriepack zusammengefassten Einzelzellen ausgelegt ist. Die Kühlplatte trägt dabei in paariger Zuordnung verlegte Schleifen eines Kühlrohres, welche von einem Kühlmittel durchflössen werden. Eine elastische Spannmatte und eine Zellverbinderplatine befinden sich zwischen der Kühlplatte und der Übertragungsplatte, wobei der Wärmeübergang von den Polseiten der Einzelzellen in die Übertragungsplatte zusätzlich durch eine Wärmeleitfolie unterstützt werden soll. Single cell arranged cooling device has. The cooling device comprises a cooling and a transfer plate, which is designed as a so-called head cooling on a pole side of the combined into a battery pack individual cells. The cooling plate carries in a paired assignment routed loops of a cooling tube, which are traversed by a coolant. An elastic tension mat and a cell connector board are located between the cooling plate and the transfer plate, wherein the heat transfer from the pole sides of the individual cells in the transfer plate is to be additionally supported by a heat conducting foil.
Offenbarung der Erfindung Disclosure of the invention
Die Erfindung geht aus von einem Batteriemodul mit einer Vielzahl von Zellen, insbesondere Lithium-Ionen-Zellen und einer Temperiereinheit zur The invention relates to a battery module with a plurality of cells, in particular lithium-ion cells and a temperature control unit for
Temperaturregelung der Lithium-Ionen-Zellen. Das Batteriemodul zeichnet sich dadurch aus, dass die Temperiereinheit eine Rohrleitung enthält, die aus einem flexiblen Material geformt ist. Als vorteilhaft erweist sich dabei, dass durch die Verwendung eines flexiblen Materials sehr zuverlässig und in einfacher Weise der thermische Kontakt zwischen den Zellen und der das Temperiermedium führenden Rohrleitung hergestellt werden kann. Temperature control of lithium-ion cells. The battery module is characterized in that the temperature control unit includes a pipe which is formed of a flexible material. It proves to be advantageous in this case that the use of a flexible material makes it possible to produce the thermal contact between the cells and the pipeline carrying the temperature control medium in a very reliable and simple manner.
Insbesondere liegt die Rohrleitung fest an den Lithium-Ionen-Zellen an. Dadurch können Spalte, die aufgrund geometrischer Toleranzen zwischen den Lithium- Ionen-Zellen und der Rohrleitung auftreten, minimiert werden und es kann die erforderliche Güte einer Kontaktaufnahme der Rohrleitung der Temperiereinheit mit den Lithium-Ionen-Zellen verbessert werden. In particular, the pipeline is firmly attached to the lithium-ion cells. As a result, gaps that occur due to geometric tolerances between the lithium-ion cells and the pipe can be minimized and it can be the required quality of contact of the tubing of the temperature control unit with the lithium-ion cells can be improved.
Nach einer bevorzugten Ausführungsform der Erfindung bildet die Rohrleitung ein flexibles Rohrbündel aus. Die Rohrleitung ist also beispielsweise According to a preferred embodiment of the invention, the pipeline forms a flexible tube bundle. The pipeline is so for example
mäanderförmig gebogen und die Lithium-Ionen-Zellen werden auf dem entstehenden Rohrbündel so angeordnet, dass eine möglichst große Kontaktfläche zwischen den einzelnen Windungen des Rohrbündels und den anliegenden Lithium-Ionen-Zellen gegeben ist. bent meander-shaped and the lithium-ion cells are arranged on the resulting tube bundle so that as large as possible Contact surface between the individual turns of the tube bundle and the adjacent lithium-ion cells is given.
Eine bevorzugte Ausführungsform der Erfindung sieht vor, dass die Rohrleitung einen rechteckigen oder zusammengepresst kreisförmigen Querschnitt aufweist. An der durch diese Formgebung bedingten Flachseite der Rohrleitung liegen die Lithium-Ionen-Zellen an, so dass die für den Wärmeaustausch bereitstehende Kontaktfläche vergrößert ist. A preferred embodiment of the invention provides that the pipeline has a rectangular or compressed circular cross-section. At the condition caused by this shaping flat side of the pipeline are the lithium-ion cells, so that the ready for the heat exchange contact surface is increased.
Die Erfindung stellt ferner ein Elektrokraftfahrzeug oder ein Hybridfahrzeug bereit, welches das zuvor beschriebene Batteriemodul enthält. The invention further provides an electric motor vehicle or a hybrid vehicle including the battery module described above.
Zeichnungen drawings
Ein Ausführungsbeispiel der Erfindung wird anhand von Zeichnungen näher erläutert. Es zeigen: An embodiment of the invention will be explained in more detail with reference to drawings. Show it:
Figur 1 eine isometrische Ansicht einer flexiblen Rohrleitung, und Figure 1 is an isometric view of a flexible pipe, and
Figur 2 eine Anordnung mehrerer Lithium-Ionen-Zellen auf der Rohrleitung der Figur 1. FIG. 2 shows an arrangement of a plurality of lithium-ion cells on the pipeline of FIG. 1.
Ausführungsform der Erfindung Embodiment of the invention
In Figur 1 wird eine mäanderförmig zu einem Rohrbündel gebogene Rohrleitung 10 gezeigt, die Teil einer Temperiereinheit eines Batteriemoduls ist. Die In FIG. 1, a pipeline 10 bent in a meandering manner into a tube bundle is shown, which is part of a temperature control unit of a battery module. The
Rohrleitung 10 ist hohl und wird von einem Fluid durchströmt. Die Rohrleitung 10 besteht aus einem flexiblen Material, so dass das Rohrbündel in x- und z- Richtung verformbar ist, was durch die eingezeichneten Pfeile angedeutet wird. Pipeline 10 is hollow and is traversed by a fluid. The pipe 10 is made of a flexible material, so that the tube bundle in the x and z direction is deformable, which is indicated by the arrows.
Figur 2 skizziert die Lage von Lithium-Ionen-Zellen 20 des Batteriemoduls auf der zu einem Rohrbündel gebogenen Rohrleitung 10. Jede Lithium-Ionen-Zelle 20 liegt in ihrem Bodenbereich an einem Teilstück der mäanderförmig gebogenen Rohrleitung 10 der Temperiereinrichtung zum Zweck ihrer Erwärmung oder Kühlung an. Wie ersichtlich, hat die Rohrleitung 10 hat einen rechteckigen Querschnitt, wobei eine Flachseite der Rohrleitung 10 direkt an die Lithium- Ionen-Zelle 20 grenzt. Durch die flexible Konstruktion der Rohrleitung 10 erhält das Rohrbündel seine hohe Verformbarkeit und Flexibilität. Hierdurch kann sich das Rohrbündel besser an die Oberfläche der Lithium-Ionen-Zellen 20 anpassen und damit kann die für den Wärmeaustausch bereitstehende Kontaktfläche maximiert werden. FIG. 2 outlines the position of lithium-ion cells 20 of the battery module on the pipe 10 bent into a tube bundle. Each lithium-ion cell 20 lies in its bottom region on a section of the meandering curved pipe 10 of the tempering device for the purpose of heating or cooling it at. As can be seen, the pipe 10 has a rectangular cross-section, with a flat side of the pipe 10 directly to the lithium Ion cell 20 is adjacent. Due to the flexible construction of the pipe 10, the tube bundle gets its high ductility and flexibility. This allows the tube bundle to better conform to the surface of the lithium-ion cells 20 and thus maximize the contact area available for heat exchange.
Die Erfindung kann bei beliebigen Batteriemodulen und generell The invention can be used in any battery modules and in general
Ladungsspeichermodulen zur Kühlung und/oder Temperierung der Zellen eingesetzt werden. Charge storage modules for cooling and / or temperature of the cells are used.

Claims

Ansprüche claims
1 . Batteriemodul mit einer Vielzahl von Zellen, insbesondere Lithium-Ionen- Zellen (20) und einer Temperiereinheit zur Temperaturregelung der Zellen, insbesondere Lithium-Ionen-Zellen (20), dadurch gekennzeichnet, dass die Temperiereinheit eine Rohrleitung (10) enthält, die aus einem flexiblen Material geformt ist. 1 . Battery module with a plurality of cells, in particular lithium-ion cells (20) and a temperature control unit for controlling the temperature of the cells, in particular lithium-ion cells (20), characterized in that the temperature control unit contains a pipeline (10) which consists of a flexible material is molded.
2. Batteriemodul nach Anspruch 1 , bei dem die Rohrleitung (10) fest an den Lithium-Ionen-Zellen (20) anliegt. 2. Battery module according to claim 1, wherein the pipe (10) firmly against the lithium-ion cells (20).
3. Batteriemodul nach Anspruch 1 oder 2, bei dem die Rohrleitung (10) ein Rohrbündel ausbildet. 3. Battery module according to claim 1 or 2, wherein the pipe (10) forms a tube bundle.
4. Batteriemodul nach Anspruch 3, bei dem das Rohrbündel aus einer 4. Battery module according to claim 3, wherein the tube bundle of a
mäanderförmig gebogenen Rohrleitung (10) besteht.  meandering curved pipe (10).
5. Batteriemodul nach einem der vorhergehenden Ansprüche, bei dem die Rohrleitung (10) einen rechteckigen oder zusammengepresst kreisförmigen Querschnitt aufweist. 5. Battery module according to one of the preceding claims, wherein the pipe (10) has a rectangular or compressed circular cross-section.
6. Elektrokraftfahrzeug oder Hybridfahrzeug mit einem Batteriemodul gemäß einem der Ansprüche 1 bis 5. 6. Electric motor vehicle or hybrid vehicle with a battery module according to one of claims 1 to 5.
PCT/EP2012/066268 2011-10-19 2012-08-21 Battery module with a temperature control unit WO2013056878A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011084747.2 2011-10-19
DE201110084747 DE102011084747A1 (en) 2011-10-19 2011-10-19 Battery module with a temperature control unit

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Publication Number Publication Date
WO2013056878A1 true WO2013056878A1 (en) 2013-04-25

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3075336B1 (en) * 2017-12-14 2020-02-07 Valeo Systemes Thermiques HEAT EXCHANGER FOR THERMAL MANAGEMENT OF AN ELECTRIC BATTERY

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202807A1 (en) * 2002-01-25 2003-08-07 Daimler Chrysler Ag Temperature control system for high power secondary batteries for motor vehicle use circulates heat transporting fluid through channels around cells
DE102006000885B3 (en) * 2006-01-04 2007-08-02 Daimlerchrysler Ag Method for producing a heat exchanger tube bundle for heat exchangers of electrochemical energy storage devices
WO2007087665A2 (en) * 2006-02-01 2007-08-09 Magna Steyr Fahrzeugtechnik Ag & Co Kg High power battery with cooling
DE102008034875A1 (en) 2008-07-26 2010-01-28 Daimler Ag Battery i.e. lithium-ion-battery, for use in vehicle e.g. vehicle with hybrid drive, has cooling device that is arranged on pole side of single cells, where cooling device comprises cooling plate and transfer plate
US20110206964A1 (en) * 2010-02-24 2011-08-25 Gm Global Technology Operations, Inc. Cooling system for a battery assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10202807A1 (en) * 2002-01-25 2003-08-07 Daimler Chrysler Ag Temperature control system for high power secondary batteries for motor vehicle use circulates heat transporting fluid through channels around cells
DE102006000885B3 (en) * 2006-01-04 2007-08-02 Daimlerchrysler Ag Method for producing a heat exchanger tube bundle for heat exchangers of electrochemical energy storage devices
WO2007087665A2 (en) * 2006-02-01 2007-08-09 Magna Steyr Fahrzeugtechnik Ag & Co Kg High power battery with cooling
DE102008034875A1 (en) 2008-07-26 2010-01-28 Daimler Ag Battery i.e. lithium-ion-battery, for use in vehicle e.g. vehicle with hybrid drive, has cooling device that is arranged on pole side of single cells, where cooling device comprises cooling plate and transfer plate
US20110206964A1 (en) * 2010-02-24 2011-08-25 Gm Global Technology Operations, Inc. Cooling system for a battery assembly

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