WO2014029566A1 - Module cover for a battery module, battery module, thermal management system and motor vehicle - Google Patents

Module cover for a battery module, battery module, thermal management system and motor vehicle Download PDF

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Publication number
WO2014029566A1
WO2014029566A1 PCT/EP2013/065150 EP2013065150W WO2014029566A1 WO 2014029566 A1 WO2014029566 A1 WO 2014029566A1 EP 2013065150 W EP2013065150 W EP 2013065150W WO 2014029566 A1 WO2014029566 A1 WO 2014029566A1
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WO
WIPO (PCT)
Prior art keywords
module
module cover
battery
cover
battery module
Prior art date
Application number
PCT/EP2013/065150
Other languages
German (de)
French (fr)
Inventor
Markus Kohlberger
Wolfgang DUERNEGGER
Johannes BIEDERT
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 WO2014029566A1 publication Critical patent/WO2014029566A1/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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/278—Organic material
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/276—Inorganic material
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/28—Composite material consisting of a mixture of organic and inorganic materials
    • 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 module cover for a battery module, a battery module, a thermal management system and a motor vehicle.
  • lithium-ion batteries or accumulators are regarded as a key technology for the partial or complete
  • Traction batteries in hybrid, plug-in hybrid and electric vehicles are usually modular. Here are from at least two
  • modules Single cells, which are connected in series or in parallel, formed modules, which in turn are combined to form larger subunits, so-called subunits or subunits. From at least two of these subunits, the entire battery is built, the modules and subunits can be arranged one above the other depending on the space in several levels.
  • -Accumulators may be operated depending on the power requirement for a permanently safe and gentle operation only in a certain temperature range.
  • a thermal management system is usually provided which heats the cells in a vehicle for example after a start on cold days or cools them during operation.
  • thermal management systems have temperature control elements through which a cooling medium flows and which are in direct contact with the cooling medium
  • Battery module stand to heat them specifically or cool.
  • Bottom surface of battery cells is often used for contacting, but they also have disadvantages, since unavoidable planarity deviations occur due to the manufacturing process. This must be compensated either by sufficiently generous dimensioning of the cooling system or by using a gap-filling material, a so-called Gapfilier.
  • the thermal contacting of the cell envelope to the interior of the cell is also not ideal at the bottom of the single cell, because there are also insulating materials inside the cell. That is, the heat flow from the cell actually takes place over the voltage applied to the side surfaces of the cell envelope cell winding, which is thermally well contacted there.
  • the battery modules are provided with a so-called module cover, which has the function to facilitate the attachment of cell connectors, to lay harnesses therein, to ensure a contact protection for cell terminals, to hold the sealing elements for a degassing system and to install other components on the module as needed or to place. Disclosure of the invention
  • a module cover for a battery module is made available which has at least one coolant channel which is at least partially open on the module side.
  • the module cover on the module side is designed such that it rests at least partially flat on top of a battery module and acts as a cooling plate.
  • the previous functions of a module cover are advantageously supplemented by that of a corresponding component of a thermal management system, so that it is no longer necessary to have two separate components or subassemblies and parts which have hitherto been performed separately.
  • the module cover according to the invention also has the usual state of the art facilities.
  • the module cover wherein the module cover is part of a degassing system for the individual cells.
  • the module cover for forming a gas collector on degassing and corresponding openings corresponding to the vent openings of the battery cells.
  • the module cover has connections for the inlet and outlet of coolant as well as for the discharge of gases.
  • the module cover also preferably has at least one seal, which is arranged between the module cover and the battery module, in order to ensure the tightness of the degassing system and optionally of the thermal management system.
  • the module cover is preferably made of a polymeric material, particularly preferably of a fiber-reinforced plastic.
  • the coolant channel can for example consist of metal completely or on the module side.
  • Module frame can be done via screw or the like.
  • metal for the module cover and fastening methods such as welding come into question.
  • the invention also relates to a battery module having a module cover described above, wherein the battery module is preferably a lithium-ion battery module, and a thermal management system having a module cover.
  • FIG. 1 shows a perspective detail view of a module cover according to the invention arranged on a battery module
  • FIG. 2 shows a sectional side view of the module cover arranged on a battery module according to FIG. 1,
  • FIG. 3 shows a perspective detail view of a module cover according to the invention arranged on a battery module after a second one
  • Figure 4 in a sectional side view of a seal for a
  • FIG. 5 shows a top view of a module cover according to the invention
  • Figure 6 in a plan view of a module cover according to the invention according to a second embodiment
  • Figure 7 in a plan view of a sealing plate for a module cover according to the invention.
  • module cover 10 is shown, which is arranged on a battery module 1 1 with a plurality of battery cells 12, wherein the battery module 1 1 is only partially shown.
  • the module cover 10 covers the battery cells 12 in the region between the terminals 13, wherein a centrally disposed on the battery cells 12 degassing opening 14 is covered.
  • the module cover 10 Around Degassing openings 14, the module cover 10 has an opening 15 which is part of a degassing system. On both sides next to the opening 15 of the
  • Module cover 10 is in each case a coolant channel 16 located on the module side consists of a thermally conductive material 17 which rests flat on the battery cells 12 and is part of a thermal management system. On the top of the module cover 10 ribs 18 are provided for reinforcement. the same
  • Embodiment of the module cover 10 is shown in Figure 2, wherein it can be seen here that the coolant channel 16 spans the opening 15 for degassing.
  • FIG. 3 shows a similar construction of a module cover 10, so that the previous reference symbols also apply here.
  • the coolant channel 16 is configured open to the battery cells 12. Therefore, a seal 19 is arranged between the module cover 10 and the surface of the battery cells 12, which is shown separately in cross section in FIG.
  • the coolant channel 16 is here divided into two channels, as shown in Figure 5, and connected at one end, so that there is a circulating coolant flow.
  • FIG. 5 also shows the terminations 20, 21, 22 necessary for the coolant circuit and the degassing.
  • Another embodiment of the module cover 10 is shown in FIG. In this case, the connections 20, 22 for the coolant channel 16 are located on one side of the module cover 10, while the connection 21 for the degassing is directed to the other side.
  • the sealing plate 23 shown in Figure 7 with a sealing cross section as in Figure 4 is used for battery modules 1 1, which consist of several rows of differently arranged battery cells 12.

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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

A module cover for a battery module is provided, wherein the module cover (10) has at least one coolant channel (16) that is designed to be open on the module side, at least in part, or the module cover (10) has at least one coolant channel (16) and is designed as a cooling plate on the module side. The typical functions of a module cover (10) can thereby be supplemented advantageously with those of a corresponding component of a thermal management system, and therefore two separate components or assemblies are no longer necessary and parts previously realised separately can be dispensed with. The invention further relates to a battery module (11), preferably a lithium-ion battery, a thermal management system and a motor vehicle.

Description

Beschreibung  description
Titel title
Moduldeckel für ein Batteriemodul, Batteriemodul, Thermomanagementsystem sowie Kraftfahrzeug  Module cover for a battery module, battery module, thermal management system and motor vehicle
Die vorliegende Erfindung betrifft einen Moduldeckel für ein Batteriemodul, ein Batteriemodul, ein Thermomanagementsystem sowie ein Kraftfahrzeug. The present invention relates to a module cover for a battery module, a battery module, a thermal management system and a motor vehicle.
Sowohl bei stationären Anwendungen, beispielsweise bei Windkraftan lagen, in Fahrzeugen, beispielsweise in Hybrid- und Elektrofahrzeugen, als auch im Both in stationary applications, such as wind turbines, in vehicles, such as in hybrid and electric vehicles, as well as in
Consumer-Bereich für beispielsweise Laptops und Mobiltelefone kommen vermehrt neue Batteriesysteme zum Einsatz, an die sehr hohe Anforderungen hinsichtlich der Zuverlässigkeit, Sicherheit, Leistungsfähigkeit und Lebensdauer gestellt werden. Insbesondere Lithium-Ionen-Batterien bzw. -Akkumulatoren gelten dabei als Schlüsseltechnologie für die teilweise oder vollständige Consumer areas for laptops and mobile phones, for example, are increasingly using new battery systems, which are subject to very high requirements in terms of reliability, safety, performance and service life. In particular, lithium-ion batteries or accumulators are regarded as a key technology for the partial or complete
Elektrifizierung von Fahrzeugen. Electrification of vehicles.
Ein wichtiger Parameter für die Leistungsfähigkeit derartiger Batteriesysteme ist die spezifische Energie oder gravimetrischen Energiedichte, die in Wattstunden pro Kilogramm (Wh/kg) gemessen wird. Dieser Wert gibt an, wie viel Energie in einem Kilogramm Batterie gespeichert werden kann. Es wird daher angestrebt, das Gewicht von Batteriesystemen bei gleicher oder höherer Energie zu An important parameter for the performance of such battery systems is the specific energy or gravimetric energy density measured in watt-hours per kilogram (Wh / kg). This value indicates how much energy can be stored in one kilogram of battery. It is therefore desirable to increase the weight of battery systems at the same or higher energy
reduzieren. to reduce.
Antriebsbatterien in Hybrid-, Plug-in-Hybrid- und Elektrofahrzeugen werden üblicherweise modular aufgebaut. Hierbei werden aus mindestens zwei Traction batteries in hybrid, plug-in hybrid and electric vehicles are usually modular. Here are from at least two
Einzelzellen, die seriell oder parallel verschaltet werden, Module gebildet, welche wiederum zu größeren Untereinheiten zusammengefasst werden, sogenannten Subunits oder Untereinheiten. Aus zumindest zwei dieser Subunits wird die komplette Batterie aufgebaut, wobei die Module und Subunits je nach Bauraum in mehreren Ebenen übereinander angeordnet sein können. Diese Batteriemodule und insbesondere Lithium-Ionen-Batterien bzw. Single cells, which are connected in series or in parallel, formed modules, which in turn are combined to form larger subunits, so-called subunits or subunits. From at least two of these subunits, the entire battery is built, the modules and subunits can be arranged one above the other depending on the space in several levels. These battery modules and in particular lithium-ion batteries or
-Akkumulatoren dürfen je nach Leistungsanforderung für einen dauerhaft sicheren und schonenden Betrieb nur in einem bestimmten Temperaturbereich betrieben werden. Um die Temperatur bedarfsgerecht anpassen zu können, ist üblicherweise ein Thermomanagementsystem vorgesehen, das die Zellen beispielsweise in einem Fahrzeug nach einem Start an kalten Tagen erwärmt oder während des Betriebes kühlt. -Accumulators may be operated depending on the power requirement for a permanently safe and gentle operation only in a certain temperature range. In order to be able to adjust the temperature as needed, a thermal management system is usually provided which heats the cells in a vehicle for example after a start on cold days or cools them during operation.
Dazu verfügen Thermomanagementsysteme über Temperierelemente, die von einem Kühlmedium durchströmt werden und die im direkten Kontakt zum For this purpose, thermal management systems have temperature control elements through which a cooling medium flows and which are in direct contact with the cooling medium
Batteriemodul stehen, um diese gezielt zu erwärmen oder zu kühlen. Battery module stand to heat them specifically or cool.
Als Temperierelemente werden üblicherweise Kühlplatten verwendet, die eine sehr gute thermische Kontaktierung an die Batteriezellen benötigen. Die As tempering usually cooling plates are used, which require a very good thermal contact with the battery cells. The
Bodenfläche von Batteriezellen wird oftmals zur Kontaktierung verwendet, jedoch weisen diese auch Nachteile auf, da durch den Herstellprozess unvermeidbare Planaritätsabweichungen auftreten. Dies muss entweder durch genügend großzügige Dimensionierung des Kühlsystems oder aber durch Verwendung eines Lücken füllenden Materials, einem sogenannten Gapfilier, kompensiert werden. Die thermische Kontaktierung der Zellhülle zum Inneren der Zelle ist am Boden der Einzelzelle ebenfalls nicht ideal, weil sich dort im Inneren der Zelle auch isolierende Materialien befinden. Das heißt, der Wärmeabfluss aus der Zelle erfolgt eigentlich über den an den Seitenflächen der Zellhülle anliegenden Zellwickel, der dort thermisch gut kontaktiert ist. Bottom surface of battery cells is often used for contacting, but they also have disadvantages, since unavoidable planarity deviations occur due to the manufacturing process. This must be compensated either by sufficiently generous dimensioning of the cooling system or by using a gap-filling material, a so-called Gapfilier. The thermal contacting of the cell envelope to the interior of the cell is also not ideal at the bottom of the single cell, because there are also insulating materials inside the cell. That is, the heat flow from the cell actually takes place over the voltage applied to the side surfaces of the cell envelope cell winding, which is thermally well contacted there.
Weiterhin sind die Batteriemodule mit einem sogenannten Moduldeckel versehen, der die Funktion hat, die Anbringung von Zellverbindern zu erleichtern, Kabelbäume darin zu verlegen, einen Berührschutz für Zellterminals zu gewährleisten, die Dichtelemente für ein Entgasungssystem zu halten und bei Bedarf weitere Bauteile am Modul zu montieren oder zu platzieren. Offenbarung der Erfindung Furthermore, the battery modules are provided with a so-called module cover, which has the function to facilitate the attachment of cell connectors, to lay harnesses therein, to ensure a contact protection for cell terminals, to hold the sealing elements for a degassing system and to install other components on the module as needed or to place. Disclosure of the invention
Erfindungsgemäß wird ein Moduldeckel für ein Batteriemodul zur Verfügung gestellt, der zumindest einen Kühlmittelkanal, der zumindest teilweise modulseitig offen ausgeführt ist, aufweist. According to the invention, a module cover for a battery module is made available which has at least one coolant channel which is at least partially open on the module side.
Alternativ ist der Moduldeckel modulseitig derart ausgestaltet, dass dieser zumindest teilweise plan auf der Oberseite eines Batteriemoduls aufliegt und als Kühlplatte fungiert. Alternatively, the module cover on the module side is designed such that it rests at least partially flat on top of a battery module and acts as a cooling plate.
Bei dem erfindungsgemäßen Moduldeckel sind vorteilhafterweise die bisherigen Funktionen von einem Moduldeckel durch die eines entsprechenden Bauteils eines Thermomanagementsystems ergänzt, so dass nicht mehr zwei getrennte Bauteile bzw. Baugruppen notwendig sind und bisher separat ausgeführte Teile entfallen können. In the case of the module cover according to the invention, the previous functions of a module cover are advantageously supplemented by that of a corresponding component of a thermal management system, so that it is no longer necessary to have two separate components or subassemblies and parts which have hitherto been performed separately.
Zudem wird vorteilhafterweise die thermische Kontaktierung zu den In addition, advantageously, the thermal contact with the
Batteriezellen gegenüber Kühlplatten nach dem Stand der Technik verbessert, da die anfallende Wärme am Ort der Entstehung abgeführt werden kann. Battery cells compared to cooling plates according to the prior art, since the heat generated can be dissipated at the place of origin.
Durch eine vereinfachte Montage und den Wegfall von Bauteilen ergibt sich vorteilhafterweise eine kostengünstigere Produktion von Batteriemodulen. By a simplified assembly and the elimination of components advantageously results in a cheaper production of battery modules.
Wie bereits ausgeführt, weist der erfindungsgemäße Moduldeckel auch die nach dem Stand der Technik üblichen Einrichtungen auf. As already stated, the module cover according to the invention also has the usual state of the art facilities.
Besonders bevorzugt ist eine Ausführungsform des Moduldeckels, bei der der Moduldeckel Teil eines Entgasungssystems für die einzelnen Zellen ist. Dazu weist der Moduldeckel zur Ausbildung eines Gaskollektors Entgasungsleitungen und entsprechende Öffnungen auf, die mit den Entgasungsöffnungen der Batteriezellen korrespondieren. Particularly preferred is an embodiment of the module cover, wherein the module cover is part of a degassing system for the individual cells. For this purpose, the module cover for forming a gas collector on degassing and corresponding openings corresponding to the vent openings of the battery cells.
Der Moduldeckel besitzt Anschlüsse für die Ein- und Ableitung von Kühlmittel sowie für die Ableitung von Gasen. Der Moduldeckel weist zudem vorzugsweise zumindest eine Dichtung auf, die zwischen Moduldeckel und Batteriemodul angeordnet ist, um die Dichtigkeit des Entgasungssystems und gegebenenfalls des Thermomanagementsystems zu gewährleisten. The module cover has connections for the inlet and outlet of coolant as well as for the discharge of gases. The module cover also preferably has at least one seal, which is arranged between the module cover and the battery module, in order to ensure the tightness of the degassing system and optionally of the thermal management system.
Der Moduldeckel wird vorzugsweise aus einem polymeren Werkstoff, besonders bevorzugt aus einem faserverstärkten Kunststoff hergestellt. The module cover is preferably made of a polymeric material, particularly preferably of a fiber-reinforced plastic.
Vorzugsweise werden aber bestimmte Teile des Moduldeckels aus Metall entweder zur Versteifung oder zur besseren Wärmeleitung hergestellt. So kann der Kühlmittelkanal beispielsweise vollständig oder modulseitig aus Metall bestehen. Preferably, however, certain parts of the module cover are made of metal either for stiffening or for better heat conduction. Thus, the coolant channel can for example consist of metal completely or on the module side.
Zur Herstellung eines solchen Moduldeckels kann auch auf eine zweischalige Konstruktionsweise zurückgegriffen werden, in der der Gaskollektor mit einem geeigneten Schweißverfahren, beispielsweise Ultraschallschweißen, mit dem Kühlsystem gefügt wird. For producing such a module cover, it is also possible to resort to a two-shell construction method in which the gas collector is joined to the cooling system with a suitable welding method, for example ultrasonic welding.
Ebenso kann je nach Ausführungsform des Moduldeckels dieser durch Likewise, depending on the embodiment of the module cover this by
Blasformen oder Extrudieren hergestellt werden. Blow molding or extrusion are produced.
Eine Anbindung des Moduldeckels an das Batteriemodul bzw. einen A connection of the module cover to the battery module or a
Modulrahmen kann über Schraubverbindungen oder dergleichen erfolgen. Bei zumindest teilweiser Verwendung von Metall für den Moduldeckel kommen auch Befestigungsverfahren wie Schweißen in Frage. Module frame can be done via screw or the like. In at least partial use of metal for the module cover and fastening methods such as welding come into question.
Gegenstand der Erfindung sind auch ein Batteriemodul sein, das einen vorbeschriebenen Moduldeckel aufweist, wobei das Batteriemodul vorzugsweise ein Lithium-Ionen-Batteriemodul ist, und ein Thermomanagementsystem, das einen Moduldeckel aufweist. The invention also relates to a battery module having a module cover described above, wherein the battery module is preferably a lithium-ion battery module, and a thermal management system having a module cover.
Erfindungsgemäß wird zudem ein Kraftfahrzeug mit einem elektrischen According to the invention also a motor vehicle with an electric
Antriebsmotor zum Antreiben des Kraftfahrzeugs und einem vorgenannten, mit dem elektrischen Antriebsmotor verbundenen oder verbindbaren Batteriemodul beansprucht. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben und in der Beschreibung beschrieben. Drive motor for driving the motor vehicle and an aforementioned, connected to the electric drive motor or connectable battery module claimed. Advantageous developments of the invention are specified in the subclaims and described in the description.
Zeichnungen drawings
Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen und der nachfolgenden Beschreibung näher erläutert. Es zeigen: Embodiments of the invention will be explained in more detail with reference to the drawings and the description below. Show it:
Figur 1 in einer perspektivischen Detailansicht einen auf einem Batteriemodul angeordneten erfindungsgemäßen Moduldeckel, FIG. 1 shows a perspective detail view of a module cover according to the invention arranged on a battery module,
Figur 2 in einer geschnittenen Seitenansicht den auf einem Batteriemodul angeordneten Moduldeckel nach Figur 1 , FIG. 2 shows a sectional side view of the module cover arranged on a battery module according to FIG. 1,
Figur 3 in einer perspektivischen Detailansicht einen auf einem Batteriemodul angeordneten erfindungsgemäßen Moduldeckel nach einer zweiten FIG. 3 shows a perspective detail view of a module cover according to the invention arranged on a battery module after a second one
Ausführungsform, embodiment,
Figur 4 in einer geschnittenen Seitenansicht eine Dichtung für einen Figure 4 in a sectional side view of a seal for a
erfindungsgemäßen Moduldeckel, module cover according to the invention,
Figur 5 in einer Aufsicht einen erfindungsgemäßen Moduldeckel, FIG. 5 shows a top view of a module cover according to the invention,
Figur 6 in einer Aufsicht einen erfindungsgemäßen Moduldeckel nach einer zweiten Ausführungsform, und Figure 6 in a plan view of a module cover according to the invention according to a second embodiment, and
Figur 7 in einer Aufsicht eine Dichtungsplatte für einen erfindungsgemäßen Moduldeckel. Figure 7 in a plan view of a sealing plate for a module cover according to the invention.
Ausführungsformen der Erfindung Embodiments of the invention
In Figur 1 ist ein Moduldeckel 10 dargestellt, der auf einem Batteriemodul 1 1 mit mehreren Batteriezellen 12 angeordnet ist, wobei das Batteriemodul 1 1 nur teilweise dargestellt ist. Der Moduldeckel 10 bedeckt die Batteriezellen 12 im Bereich zwischen den Terminals 13, wobei eine mittig auf den Batteriezellen 12 angeordnete Entgasungsöffnung 14 überdeckt wird. Im Bereich der Entgasungsöffnungen 14 weist der Moduldeckel 10 eine Öffnung 15 auf, die Teil eines Entgasungssystems ist. Beidseitig neben der Öffnung 15 des 1 shows a module cover 10 is shown, which is arranged on a battery module 1 1 with a plurality of battery cells 12, wherein the battery module 1 1 is only partially shown. The module cover 10 covers the battery cells 12 in the region between the terminals 13, wherein a centrally disposed on the battery cells 12 degassing opening 14 is covered. Around Degassing openings 14, the module cover 10 has an opening 15 which is part of a degassing system. On both sides next to the opening 15 of the
Moduldeckels 10 ist jeweils ein Kühlmittelkanal 16 befindlich, der modulseitig aus einem wärmeleitfähigen Material 17 besteht, das plan auf den Batteriezellen 12 aufliegt und Teil eines Thermomanagementsystems ist. Auf der Oberseite des Moduldeckels 10 sind Rippen 18 zur Verstärkung vorgesehen. Dieselbe Module cover 10 is in each case a coolant channel 16 located on the module side consists of a thermally conductive material 17 which rests flat on the battery cells 12 and is part of a thermal management system. On the top of the module cover 10 ribs 18 are provided for reinforcement. the same
Ausführungsform des Moduldeckels 10 ist in Figur 2 dargestellt, wobei hier ersichtlich ist, dass der Kühlmittelkanal 16 die Öffnung 15 zur Entgasung überspannt. Embodiment of the module cover 10 is shown in Figure 2, wherein it can be seen here that the coolant channel 16 spans the opening 15 for degassing.
Figur 3 zeigt einen ähnlichen Aufbau eines Moduldeckels 10, so dass die vorherigen Bezugszeichen auch hier gelten. Bei dieser Ausführungsform ist der Kühlmittelkanal 16 zu den Batteriezellen 12 offen ausgestaltet. Daher ist zwischen dem Moduldeckel 10 und der Oberfläche der Batteriezellen 12 eine Dichtung 19 angeordnet, die im Querschnitt separat in Figur 4 gezeigt wird. Der Kühlmittelkanal 16 ist hierbei in zwei Kanäle unterteilt, wie in Figur 5 ersichtlich, und an einem Ende verbunden, so dass sich ein umlaufender Kühlmittelstrom ergibt. In Figur 5 sind zudem die für den Kühlmittelkreislauf und die Entgasung notwendigen Abschlüsse 20, 21 ,22 gezeigt. Eine andere Ausführungsform des Moduldeckels 10 ist in Figur 6 abgebildet. Hierbei sind die Anschlüsse 20, 22 für den Kühlmittelkanal 16 auf einer Seite des Moduldeckels 10 befindlich, während der Anschluss 21 für die Entgasung zur anderen Seite gerichtet ist. Die in Figur 7 gezeigte Dichtungsplatte 23 mit einem Dichtungsquerschnitt wie in Figur 4 dient für Batteriemodule 1 1 , die aus mehreren Reihen unterschiedlich angeordneter Batteriezellen 12 bestehen. FIG. 3 shows a similar construction of a module cover 10, so that the previous reference symbols also apply here. In this embodiment, the coolant channel 16 is configured open to the battery cells 12. Therefore, a seal 19 is arranged between the module cover 10 and the surface of the battery cells 12, which is shown separately in cross section in FIG. The coolant channel 16 is here divided into two channels, as shown in Figure 5, and connected at one end, so that there is a circulating coolant flow. FIG. 5 also shows the terminations 20, 21, 22 necessary for the coolant circuit and the degassing. Another embodiment of the module cover 10 is shown in FIG. In this case, the connections 20, 22 for the coolant channel 16 are located on one side of the module cover 10, while the connection 21 for the degassing is directed to the other side. The sealing plate 23 shown in Figure 7 with a sealing cross section as in Figure 4 is used for battery modules 1 1, which consist of several rows of differently arranged battery cells 12.

Claims

Ansprüche claims
Moduldeckel für ein Batteriemodul, dadurch gekennzeichnet, dass der Moduldeckel (10) zumindest einen Kühlmittelkanal (16) aufweist, der zumindest teilweise modulseitig offen ausgestaltet ist, oder dass der Moduldeckel (10) zumindest einen Kühlmittelkanal (16) aufweist und modulseitig als Kühlplatte ausgestaltet ist. Module cover for a battery module, characterized in that the module cover (10) has at least one coolant channel (16) which is at least partially open on the module side, or in that the module cover (10) has at least one coolant channel (16) and is configured on the module side as a cooling plate ,
Moduldeckel nach Anspruch 1 , wobei im Moduldeckel (10) zur Ausbildung eines Gaskollektors Entgasungsleitungen und mit Entgasungsöffnungen (14) von Batteriezellen (12) korrespondierende Öffnungen (15) befindlich sind. Module cover according to claim 1, wherein in the module cover (10) for forming a gas collector Entgasungsleitungen and with degassing openings (14) of battery cells (12) corresponding openings (15) are located.
Moduldeckel nach Anspruch 1 oder 2, wobei der Moduldeckel (10) modulseitig zumindest eine Dichtung (19) aufweist. Module cover according to claim 1 or 2, wherein the module cover (10) has on the module side at least one seal (19).
Moduldeckel nach einem der Ansprüche 1 bis 3, wobei der Moduldeckel (10) zumindest teilweise aus einem polymeren Werkstoff besteht. Module cover according to one of claims 1 to 3, wherein the module cover (10) consists at least partially of a polymeric material.
Moduldeckel nach einem der Ansprüche 1 bis 4, wobei der zumindest eine Kühlmittelkanal (16) aus einem wärmeleitfähigen Material besteht. Module cover according to one of claims 1 to 4, wherein the at least one coolant channel (16) consists of a thermally conductive material.
Moduldeckel nach einem der Ansprüche 1 bis 5, wobei der Moduldeckel (10) Befestigungsmittel zur Festlegung und zum Verspannen an einem Module cover according to one of claims 1 to 5, wherein the module cover (10) fastening means for fixing and bracing on a
Batteriemodul (1 1 ) aufweist.  Battery module (1 1).
Batteriemodul einen Moduldeckel (10) nach einem der Ansprüche 1 bis 6 aufweisend. Battery module comprising a module cover (10) according to one of claims 1 to 6.
Batteriemodul nach Anspruch 7, wobei das Batteriemodul (1 1 ) eine Battery module according to claim 7, wherein the battery module (1 1) a
Lithium-Ionen-Batterie ist. Thermomanagementsystem einen Moduldeckel (10) nach einem der Ansprüche 1 bis 6 als Temperierelement aufweisend. Lithium-ion battery is. Thermal management system comprising a module cover (10) according to one of claims 1 to 6 as a tempering.
Kraftfahrzeug mit einem elektrischen Antriebsmotor zum Antreiben des Kraftfahrzeugs und einem mit dem elektrischen Antriebsmotor verbundenen oder verbindbaren Batteriemodul (1 1 ) gemäß Anspruch 7 oder 8. Motor vehicle with an electric drive motor for driving the motor vehicle and a battery module (1 1) connected or connectable to the electric drive motor according to claim 7 or 8.
PCT/EP2013/065150 2012-08-21 2013-07-18 Module cover for a battery module, battery module, thermal management system and motor vehicle WO2014029566A1 (en)

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US9929388B2 (en) 2015-04-23 2018-03-27 Ford Global Technologies, Llc Traction battery assembly
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DE102022109170A1 (en) 2022-04-14 2023-10-19 Man Truck & Bus Se Battery module and cover for a battery module

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CN106058090A (en) * 2015-04-17 2016-10-26 福特全球技术公司 Traction battery assembly
US10581039B2 (en) 2015-04-17 2020-03-03 Ford Global Technologies, Llc Traction battery assembly
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CN109906524A (en) * 2016-11-04 2019-06-18 三星Sdi株式会社 Battery system

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