EP3824504A1 - Module de batterie pour un véhicule électrique et support pour des cellules de batterie dans un module de batterie de ce type - Google Patents

Module de batterie pour un véhicule électrique et support pour des cellules de batterie dans un module de batterie de ce type

Info

Publication number
EP3824504A1
EP3824504A1 EP19750067.1A EP19750067A EP3824504A1 EP 3824504 A1 EP3824504 A1 EP 3824504A1 EP 19750067 A EP19750067 A EP 19750067A EP 3824504 A1 EP3824504 A1 EP 3824504A1
Authority
EP
European Patent Office
Prior art keywords
electrical resistance
resistance element
battery
battery cells
battery module
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.)
Pending
Application number
EP19750067.1A
Other languages
German (de)
English (en)
Inventor
Martin Zoske
Volodymyr Ilchenko
Uwe Strecker
Nikolaus Gerhardt
Harald Bachmann
Jens WIESKE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Webasto SE
Original Assignee
Webasto SE
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 Webasto SE filed Critical Webasto SE
Publication of EP3824504A1 publication Critical patent/EP3824504A1/fr
Pending legal-status Critical Current

Links

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
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte 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
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—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
    • 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
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • 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
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • 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
    • 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 for building a traction battery for an electric vehicle, for example a passenger car or truck, and a holder for battery cells in such a battery module.
  • a battery module for building a traction battery for an electric vehicle for example a passenger car or truck
  • a holder for battery cells in such a battery module for example a passenger car or truck
  • an electric vehicle is understood to mean an electrically driven vehicle, in particular a purely electrically driven vehicle or a hybrid vehicle.
  • Vehicles of this type are equipped with an electrical energy store in the form of a battery, for example a traction battery or drive battery, which stores and makes available the electrical energy required for the ferry operation.
  • the batteries are also called
  • Such batteries are usually not constructed as a monoblock but modularly from a large number of battery cells which are electrically connected to one another. For building one
  • Such battery systems can also be a
  • Housing housing housing battery modules, electrical circuits and a
  • a battery cell is understood to be an electrochemical storage cell, preferably a secondary cell.
  • the term "cell" can refer to the physical appearance of the component can be understood as the smallest contactable unit.
  • a battery module is understood to be a structural unit which combines a large number of battery cells.
  • a battery or battery system is accordingly understood to be a structural unit which is constructed from one or more interconnected battery modules. The battery or battery system are preferably intended for use in an electric vehicle, but can also be used in other vehicles or others
  • the power and the removable capacity of a battery are temperature-dependent and can accordingly be operated optimally only in a certain temperature range, for example in a temperature range between 20 ° C. and 60 ° C. If battery cells have a temperature outside the optimum
  • known battery systems are equipped with a temperature control system which is set up to cool the battery cells at temperatures above the optimal temperature range and to heat them at temperatures below the optimal temperature range.
  • a temperature control system is disclosed, for example, in GB 2549512 A.
  • an electrical heating system For heating the battery cells, it is also known to provide an electrical heating system with a temperature control circuit running through the battery and along the battery cells, through which a heatable temperature control medium flows.
  • the temperature control medium is usually preheated outside the battery by means of the electrical heating system and passed through flow channels provided in the battery.
  • the heating of the battery with such a heating system can, however, take place with a time delay and unevenly.
  • By providing the temperature control circuit such a heating system continues to have an impact on the overall weight of the battery system and can pose a safety risk for the battery system due to leaks.
  • a battery module for an electric vehicle which has a plurality of battery cells and at least one electrical one arranged between the battery cells
  • the electrical resistance element has a polymer composition with a positive temperature coefficient.
  • the at least one electrical resistance element serves as an electrical heating element which converts electrical energy into heat for heating the battery cells.
  • the electrical resistance element can preferably be supplied with current.
  • the electrical resistance element can be connected to a current source for heating the battery cells as required and can be set up to convert electrical energy provided by the current source into heat.
  • Temperature control medium circulated through the battery in a temperature control circuit a temperature control circuit can be dispensed with in the battery module proposed here. Accordingly, the battery module can have a compact design and be less susceptible to faults or errors.
  • the use of the electrical resistance element also has the effect that it can be arranged in the battery module in a space-saving manner and with a high degree of design freedom, as a result of which rapid and uniform heating of battery cells can be ensured in comparison with the known heating systems.
  • opposite ends of the electrical resistance element can be provided with electrical connections for the electrically conductive connection of the electrical resistance element to a current source, in particular with its poles. More precisely, the opposite Ends of the electrical resistance element arranged electrical connections are each connected to a different pole of the power source. In this way, the electrical resistance element can be connected in a circuit and convert the current flowing through the circuit into heat.
  • the battery cells of the battery module can serve as a current source for the electrical resistance element.
  • the electrical connections of the electrical resistance element can be electrically conductively connected to the battery cells. In particular, the battery cells can be connected together and thus form a battery, the electrical connections of the electrical
  • Resistance elements can each be electrically conductively connected to one pole of the battery formed by the battery cells.
  • the electrical resistance element comprises a polymer composition with a positive temperature coefficient.
  • the electrical resistance element can consist of the polymer composition.
  • compositions with a positive temperature coefficient are generally also referred to as PTC (positive temperature coefficient) compositions. Such compositions have the property of conducting electrical current better at low temperatures than at high temperatures. In other words, an electrical resistance of The composition increases with increasing temperature.
  • Components made from a PTC composition are also referred to as PTC thermistors.
  • the polymer composition with a positive temperature coefficient is used. This composition corresponds to a PTC substance composition based on polymer and also becomes referred to as PPTC (polymeric positive temperature coefficient composition).
  • Resistor element based on a PPTC composition has a non-linear one
  • a PPTC composition thus has the effect that as the temperature of the material increases, the heat input induced by the current flow is throttled into the electrical resistance element. Since the electrical resistance of this material increases nonlinearly with increasing temperature, an electrical resistance element made of a PPTC composition enables rapid heating to a predetermined nominal temperature and, after the nominal temperature has been reached, the induced heat can be reduced rapidly or abruptly in order to overheat the electrical To prevent resistance elements.
  • the PPTC composition can be selected such that the electrical resistance element is not heated beyond the optimum temperature range of the battery cells during operation, in particular when current is applied.
  • the optimal temperature range can be between 20 ° C and 60 ° C.
  • the PPTC composition of the electrical resistance element can be provided in such a way that the electrical resistance element is transferred in a high-resistance state when the predetermined nominal temperature is reached. This allows the electrical
  • the PPTC composition of the electrical resistance element has at least one polymer.
  • the polymer preferably forms a non-conductive polymer matrix in the PPTC composition, in which electrically conductive particles are embedded or dispersed. In this way, an electrical conductivity of the PPTC composition can be ensured, in particular below the nominal temperature.
  • thermally conductive particles can be embedded or dispersed in the polymer matrix, which improve a thermal conductivity of the polymer composition.
  • the electrical resistance element constructed from it has advantageous mechanical and thermal
  • a PPTC composition has a higher one
  • the PPTC composition can have, for example, at least one polymer from the group comprising: polyethylene, polyethylene oxide, polybutadiene, polyethylene acrylates, ethylene-acrylic acid-ethyl ether copolymers, ethylene-acrylic acid copolymers, polyesters, polyamides, polyethers, polycaprolactam, fluorinated ethylene-propylene Copolymers, chlorinated polyethylene, sulfochlorinated polyethylene, ethyl vinyl acetate copolymers, polypropylene, polystyrene, styrene / acrylonitrile copolymers, polyvinyl chloride, polycarbonates, polyacetals, polyalkylene oxides,
  • Polyphenylene oxide, polysulfones and fluoroplastics For example, two or more polymers from the above group can be included in the PPTC composition.
  • the type of polymer and the composition ratios can be varied.
  • the electrically conductive particles included in the PPTC composition can have at least one type of particles from the group comprising: carbon black, silver powder, gold powder, carbon powder, graphite powder, copper powder, carbon fibers, nickel powder and silver-plated fine particles.
  • the electrically conductive particles included in the PPTC composition can comprise several types of particles from the group mentioned above.
  • the type of electrically conductive particles and / or their particle size can be varied.
  • the electrically conductive particles can have a particle size between 1 pm and 200 pm.
  • the thermally conductive particles included in the PPTC composition can have at least one type of particles from the group comprising: silicon carbide, silicon nitride, beryllium oxide, selenium and aluminum oxide.
  • silicon carbide silicon nitride
  • beryllium oxide silicon nitride
  • selenium aluminum oxide
  • Composition comprised thermally conductive particles include several types of particles from the above group.
  • the type of thermally conductive particles and / or their particle size can be varied.
  • the thermally conductive particles can have a particle size between 1 pm and 200 pm.
  • the use of the PPTC composition for the electrical resistance element provides a high degree of design freedom for the heating element within the battery module. This can be attributed in particular to the fact that a component consisting of the PPTC composition can be produced comparatively easily and in any form. For example, such components can be manufactured inexpensively in large quantities by means of extrusion or an injection molding process, which can be particularly advantageous for use in battery modules for electric vehicles.
  • the high degree of design freedom when using the PPTC composition also enables a design of the electrical resistance elements that is optimized for heat conduction and their targeted arrangement within the battery module. In this way, specific heating of certain sub-areas within the battery module can also be achieved.
  • the electrical resistance element provided in the battery module can be provided in such a way that it rests on at least one battery cell. In other words, the electrical one
  • Resistance element can be in contact with at least one battery cell.
  • the electrical resistance element preferably bears on an outer surface, in particular a lateral surface, of the battery cell.
  • the electrical resistance element can be in contact with several, for example two or four, electrical resistance elements.
  • each of the plurality of resistance elements can be in contact with at least one battery cell.
  • the battery cells can each be in contact with different electrical resistance elements.
  • each of the plurality of resistance elements can be in contact with two or four electrical resistance elements.
  • the battery cells can be provided in the form of round cells, prismatic battery cells, in particular flat cells, and / or so-called pouch cells.
  • the at least one electrical resistance element can have an outer surface, in particular an outer surface, which is complementary to an outer surface, in particular one
  • the battery cells can be provided as round cells and have a cylindrical shape.
  • the electrical resistance element can have an outer surface, in particular a lateral surface, which can be concave at least in sections and in particular complementary to the cylindrical shape of the battery cell.
  • the outer surface, in particular the outer surface, of the electrical resistance element can have several, in particular two or four, concave sections. The concave sections can be in contact with the outer surface of the
  • the plurality of concave sections of the electrical resistance element can in particular have a different orientation or orientation.
  • a surface normal of the outer surface forming the concave sections is different for the different concave sections and in particular points in different directions.
  • the at least one electrical resistance element can have a length which essentially corresponds to a length or height of the battery cells, in particular of the battery cell adjoining them.
  • Resistance elements can be larger or smaller than a length or height of the battery cell.
  • the at least one electrical resistance element can be a
  • the at least one electrical resistance element can be configured to carry or support at least one battery cell within the battery module.
  • the at least one electrical resistance element can be configured to remove the plurality of
  • the at least one electrical resistance element can have several features
  • the receiving compartments or receiving cells can be open.
  • the receiving compartments or receiving cells can have at least one, preferably two opposite openings, via which the battery cells can be inserted and / or removed from the receiving compartments or receiving cells.
  • the receiving compartments are preferably designed such that the battery cells are inserted in the receiving compartments according to their length or height.
  • a cross section of the receiving compartments or receiving cells can be at least partially complementary to a cross section of the
  • an inner surface of the receiving compartments which forms an outer surface of the electrical resistance element, can rest at least in sections on an outer surface, in particular an outer surface, of the battery cells and in particular be complementary to the latter.
  • the at least one electrical resistance element can be provided such that a plurality of receiving compartments or receiving cells are arranged next to one another and / or parallel to one another in a regular pattern.
  • the at least one electrical resistance element can form side walls of the support structure which forms the plurality of receiving compartments or receiving cells.
  • the multiple receiving compartments or receiving cells can form a honeycomb structure.
  • the side walls formed by the at least one electrical resistance element can be arranged in a lattice shape, so that the plurality of receiving compartments or receiving cells are arranged side by side in a first direction are arranged and optionally also arranged next to one another in a second direction that is different, in particular perpendicular, to the first direction.
  • the electrical resistance element can be provided with at least one cooling channel, through which a temperature control medium can flow to cool the battery cells.
  • a compact design of the battery module can be provided, in which, in addition to a heating element for heating the battery cells, a cooling device for cooling the battery cells is also implemented.
  • the electrical resistance element can, at least in sections, form the cooling channels through which a temperature control medium provided by the cooling system can flow.
  • the at least one electrical resistance element can also serve as a support structure for supporting the battery cells within the battery module and / or, in that it can form a cooling channel through which a tempering medium can flow, as a cooling element for cooling the battery cells.
  • the proposed electrical resistance element contributes to the reduction of components of the battery module and provides a compact, weight-reduced and easy to manufacture construction of the battery module.
  • a holder for a plurality of battery cells of a battery module with the features of claim 13.
  • Advantageous further developments of the method result from the subclaims and the present description and the figures.
  • the holder can be used in particular in the battery module described above.
  • the features described above in connection with the battery module therefore also apply accordingly as disclosed for the holder. Accordingly, a holder for a plurality of battery cells of a battery module is provided, which has at least one electrical to be arranged between the battery cells
  • the electrical resistance element for heating the battery cells as required.
  • the electrical resistance element is characterized in that it has a polymer composition with a positive temperature coefficient.
  • the at least one electrical resistance element can be a
  • the at least one electrical resistance element can form a plurality of open receiving compartments or receiving cells which are set up to receive and / or to hold the battery cells in the battery module.
  • FIG. 1 is a cross-sectional view of a battery module of a first embodiment
  • FIG. 2 shows a perspective view of an electrical resistance element of FIG. 1
  • Figure 3 is a cross-sectional view of a battery module of a second embodiment.
  • FIG. 1 shows a cross-sectional view of a battery module 10 for an electric vehicle.
  • the battery module 10 includes a plurality of battery cells 12, which are provided in the form of round cells with a cylindrical shape.
  • the battery cells 12 are arranged next to one another within the battery module 10 and parallel to one another in a longitudinal direction of the battery cells 12. Furthermore, the battery cells 12 are electrically connected to one another and are held in a housing (not shown here) by a holder or support structure (also not shown here).
  • the battery module 10 further comprises a plurality of electrical resistance elements 14 arranged between the battery cells 12, which are set up to heat the battery cells 12 as required.
  • the electrical resistance elements 14 have a polymer composition with a positive temperature coefficient, also referred to below as a PPTC composition.
  • a PPTC composition a polymer composition with a positive temperature coefficient
  • current can be applied to the electrical resistance elements 14 and set up to convert the electrical energy thus provided to the electrical resistance elements 14 into heat.
  • heat is induced therein, which causes an increase in the temperature of the battery cells 12 which are thermally conductive therewith.
  • the electrical resistance elements 14 are connected to a current source, not shown here, and are set up to convert the electrical energy provided by the current source into heat.
  • the electrical resistance elements 14 are connected to a current source, not shown here, and are set up to convert the electrical energy provided by the current source into heat. As shown in Figure 2, the electrical
  • Resistance elements 14 at their opposite ends 16 have electrical connections 18 for the electrically conductive connection of the electrical resistance elements 14 to the current source, in particular the respective poles of the current source.
  • the PPTC composition of the electrical resistance elements 14 has at least one polymer that forms a non-conductive polymer matrix in which electrically conductive particles and thermally conductive particles are dispersed. More specifically, the PPTC composition can have, for example, at least one polymer from the group comprising: polyethylene, polyethylene oxide, polybutadiene, polyethylene acrylates, ethylene-acrylic acid-ethyl ether copolymers, ethylene-acrylic acid copolymers, polyesters, polyamides, polyethers, polycaprolactam, fluorinated ethylene-propylene Copolymers, chlorinated polyethylene, sulfochlorinated polyethylene,
  • Ethyl vinyl acetate copolymers polypropylene, polystyrene, styrene-acrylonitrile copolymers,
  • the electrically conductive particles dispersed in the PPTC composition can have at least one type of particle from the group comprising: carbon black,
  • the thermally conductive particles included in the PPTC composition can have at least one type of particles from the group comprising: silicon carbide, silicon nitride, beryllium oxide, selenium and aluminum oxide.
  • the plurality of electrical resistance elements 14 comprise two types of electrical having a different geometric configuration
  • a first type of electrical resistance elements 14, as shown in FIG. 2, is set up to lie against four battery cells 12 within the battery module 10.
  • a second type of electrical resistance elements 14 is set up to to lie against two battery cells 12 within the battery module 10 and is accordingly arranged in an edge region of the battery module 10 shown in FIG. 1.
  • the electrical resistance elements 14 are provided in such a way that they have an outer surface 20 which is complementary to an outer surface of the battery cells 12 which are respectively in contact with it.
  • the electrical resistance elements 14 of the first type have an outer surface 20 with four concave sections 22 of different orientations or orientations.
  • the electrical resistance elements 14 of the second type have a lateral surface 20 with two concave sections 22 of a different orientation or orientation.
  • the concave sections 22 are complementary to the outer surface of the respective battery cell 12 lying thereon.
  • the electrical resistance elements 14 have a length that essentially corresponds to a length or height of the battery cells 12. In other words, the electrical ones extend
  • Resistance elements 14 along the longitudinal direction of the battery cells 12 over their entire length or height.
  • the electrical resistance elements 14 can have a length that is greater or less than the length or height of the battery cells 12.
  • FIG. 3 shows a second embodiment of a battery module 10 for an electric vehicle.
  • the battery module 10 of the second embodiment comprises an electrical resistance element 14 that forms a holder or support structure for the battery cells 12.
  • the one shown in Figure 3 is electrical
  • Resistance element 14 is configured to carry or support the battery cells 12 within the battery module 10.
  • the electrical resistance element 14 is provided in such a way that it forms a plurality of open receiving compartments 24, in each of which a battery cell 12 is embedded and fixed.
  • the battery cells 12 accommodated in the receiving compartments 24 are thus firmly connected to the holder or support structure formed by the electrical resistance element 14.
  • the receiving compartments 24 are provided such that the battery cells 12 are inserted therein along their length.
  • the electrical resistance element 14 forms side walls 26 of the receiving compartments 24.
  • outer surfaces of the electrical resistance element 14 form inner surfaces of the receiving compartments 24.
  • the side walls 26 are designed such that the inner surface of the
  • Receiving compartments 24 in sections on the lateral surface of the battery cells 12 held therein abuts and is complementary to this.
  • Recesses 28 are also provided between the side walls 26 and the battery cells 12 accommodated in the receiving compartments 24.
  • the side walls 26 are arranged in a lattice shape, so that a regular pattern of receiving compartments 24 arranged next to and above one another is provided.
  • the electrical resistance element 14 can be provided with at least one cooling channel, through which a temperature control medium can flow in order to cool the battery cells.

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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)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un module de batterie (10) pour un véhicule électrique, comprenant une pluralité de cellules de batterie (12) et au moins un élément de résistance (14) électrique disposé entre les cellules de batterie (12), servant à réchauffer conformément aux besoins les cellules de batterie (12). L'élément de résistance (14) électrique comporte une composition polymère présentant un coefficient de température positif.
EP19750067.1A 2018-07-20 2019-07-22 Module de batterie pour un véhicule électrique et support pour des cellules de batterie dans un module de batterie de ce type Pending EP3824504A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018117563.9A DE102018117563B4 (de) 2018-07-20 2018-07-20 Batteriemodul für ein Elektrofahrzeug und Halterung für Batteriezellen in einem derartigen Batteriemodul
PCT/EP2019/069669 WO2020016455A1 (fr) 2018-07-20 2019-07-22 Module de batterie pour un véhicule électrique et support pour des cellules de batterie dans un module de batterie de ce type

Publications (1)

Publication Number Publication Date
EP3824504A1 true EP3824504A1 (fr) 2021-05-26

Family

ID=67551336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19750067.1A Pending EP3824504A1 (fr) 2018-07-20 2019-07-22 Module de batterie pour un véhicule électrique et support pour des cellules de batterie dans un module de batterie de ce type

Country Status (5)

Country Link
US (1) US11967685B2 (fr)
EP (1) EP3824504A1 (fr)
CN (1) CN112470328A (fr)
DE (1) DE102018117563B4 (fr)
WO (1) WO2020016455A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024105594A1 (fr) 2022-11-16 2024-05-23 3M Innovative Properties Company Composant de forme personnalisée pour assembler des batteries et ses procédés de fabrication

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021116442A1 (de) * 2021-06-25 2022-12-29 Bayerische Motoren Werke Aktiengesellschaft Hochvoltspeicher-Modul mit einer Vielzahl von Batteriezellen
CN114122566A (zh) * 2021-11-27 2022-03-01 东莞新能源科技有限公司 电化学装置及包括其的用电设备

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537907A (en) * 1968-04-16 1970-11-03 Texas Instruments Inc Battery unit and heat sink therefor
US5140297A (en) * 1981-04-02 1992-08-18 Raychem Corporation PTC conductive polymer compositions
JPH0777161B2 (ja) * 1986-10-24 1995-08-16 日本メクトロン株式会社 Ｐｔｃ組成物、その製造法およびｐｔｃ素子
TW298653B (fr) 1995-02-28 1997-02-21 Yunichica Kk
DE10003247B4 (de) * 1999-01-29 2005-02-24 Sanyo Electric Co., Ltd., Moriguchi Stromquelle, versehen mit wiederaufladbaren Batterien
KR100949334B1 (ko) * 2007-11-12 2010-03-26 삼성에스디아이 주식회사 전지 모듈
WO2009124222A2 (fr) 2008-04-02 2009-10-08 Mission Motor Company Système et procédé de gestion thermique intégrée pour un bloc de batterie multicellule
US20100316821A1 (en) 2009-06-12 2010-12-16 Sunny General International Co., Ltd. Multi-layer films, sheets, and hollow articles with thermal management function for uses as casings of secondary batteries and supercapacitors, and sleeves of secondary battery and supercapacitor packs
JP2011040330A (ja) * 2009-08-17 2011-02-24 Sony Chemical & Information Device Corp 温度センサー、バッテリーパック及び温度センサーの製造方法
WO2011064956A1 (fr) 2009-11-25 2011-06-03 パナソニック株式会社 Module de batterie
JP2012160260A (ja) * 2011-01-28 2012-08-23 Nifco Inc バッテリパック
US20170162839A1 (en) * 2015-12-08 2017-06-08 Bosch Battery Systems, Llc Super Cells Formed of Cylindrical Electrochemical Cells
GB2549512C (en) 2016-04-20 2022-01-12 Delta Motorsport Ltd Cell pack thermal management apparatus and method
US20170338534A1 (en) * 2016-05-21 2017-11-23 Borgwarner Ludwigsburg Gmbh Lithium ion battery
US10116016B2 (en) 2016-05-23 2018-10-30 Borgwarner Inc. Thermal management system and method of making and using the same
CN106099253B (zh) * 2016-08-01 2018-10-16 浙江大铭新材料股份有限公司 一种用于锂电池组的节能加热装置
CN108288739B (zh) 2016-12-09 2020-05-08 航天特种材料及工艺技术研究所 一种用于圆柱形电池的热管理模块及其制备方法和电池组

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024105594A1 (fr) 2022-11-16 2024-05-23 3M Innovative Properties Company Composant de forme personnalisée pour assembler des batteries et ses procédés de fabrication

Also Published As

Publication number Publication date
DE102018117563B4 (de) 2022-10-06
WO2020016455A1 (fr) 2020-01-23
CN112470328A (zh) 2021-03-09
DE102018117563A1 (de) 2020-01-23
US11967685B2 (en) 2024-04-23
US20210273272A1 (en) 2021-09-02

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