WO2016166659A1 - Module de batterie - Google Patents

Module de batterie Download PDF

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Publication number
WO2016166659A1
WO2016166659A1 PCT/IB2016/052071 IB2016052071W WO2016166659A1 WO 2016166659 A1 WO2016166659 A1 WO 2016166659A1 IB 2016052071 W IB2016052071 W IB 2016052071W WO 2016166659 A1 WO2016166659 A1 WO 2016166659A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat transfer
battery module
battery
electrical grounding
grounding connector
Prior art date
Application number
PCT/IB2016/052071
Other languages
English (en)
Inventor
Robert Ball
John Lewis
Original Assignee
Tata Motors European Technical Centre Plc
Tata Motors Limited
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 Tata Motors European Technical Centre Plc, Tata Motors Limited filed Critical Tata Motors European Technical Centre Plc
Publication of WO2016166659A1 publication Critical patent/WO2016166659A1/fr

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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present disclosure relates to a battery module, to a traction battery, and to a vehicle comprising a battery module.
  • HV high voltage
  • One approach is to coat the heat transfer plates with an electrically insulating material which has minimal effect on heat flow between cell and the plate. This construction does not readily allow electrical grounding of the battery cells and/or the heat transfer plates. Electrical grounding can enable detection of a loss of electrical grounding of one or more battery module; and can reduce re-radiation of electromagnetic radiation by the heat transfer plates.
  • the present invention provides an improved battery module.
  • a battery module for a traction battery, the battery module comprising:
  • the electrically conductive elastomer is resilient and is typically compressed against the heat transfer members to form the electrical connection. This arrangement helps to accommodate variations in the alignment of the heat transfer members. Moreover, at least in certain embodiments, the resulting electrical connection is vibration resistant, helping to absorb operational vibrations.
  • the battery cells are typically arranged in an array within the battery module. At least one heat transfer member is associated with each battery cell. One of said heat transfer members can be disposed between adjacent battery cells in the battery module. In certain embodiments the battery cells each have first and second major surfaces. At least one of the first and second major surfaces can be disposed in a face-to-face arrangement with one of said heat transfer members.
  • the electrical grounding connector may be deformable to conform to irregularities in the alignment of the heat transfer members relative to each other and/or other components in the traction battery. In certain embodiments, the heat transfer members are not fixedly mounted within the battery module. This resulting floating arrangement of the heat transfer members can result in variations in their relative alignment.
  • the electrical grounding connector can comprise a silicone elastomer or a fluorosilicone- elastomer loaded with electrically conductive particles.
  • the electrically conductive particles can comprise one or more of the following set: nickel particles, nickel plated graphite particles, silver plated aluminium particles, and silver plated copper particles.
  • Each heat transfer member can comprise an electrically conductive substrate and an electrically insulating coating.
  • the electrically conductive substrate can be formed from metal.
  • the electrically conductive substrate can be formed from sheet metal.
  • the electrically conductive substrate can be made of aluminium, but other materials are also contemplated.
  • the electrically insulating coating is applied to the exterior of the electrically conductive substrate.
  • One or more coating aperture can be formed in said electrically insulating coating to establish an electrical connection between said electrically conductive substrate and the electrical grounding connector.
  • the heat transfer member may comprise at least one contact surface, and at least one flange.
  • the one or more coating aperture could be formed in the at least one contact surface or at an edge thereof.
  • the one or more coating aperture can be formed in the electrically insulating coating on said at least one flange.
  • each contact surface is disposed in contact with an adjacent battery cell.
  • the at least one flange can be disposed alongside one or more of said battery cells.
  • the flange can, for example, be positioned alongside an edge, a side wall or an end wall of one or more of said battery cells.
  • the flanges of the heat transfer members can be arranged alongside each other.
  • the electrical grounding connector can comprise an elongate strip extending transversely across the flanges of said plurality of heat transfer members.
  • the electrical grounding connector can be compressed against said heat transfer members so as at least substantially to conform to the shape of the heat transfer members. This can help to establish electrical contact with said heat transfer members.
  • the electrical grounding connector can be adhesively attached to each heat transfer member.
  • the electrical grounding connector can be disposed between said heat transfer members and the cooling plate.
  • the electrical grounding connector can be compressed between said heat transfer members and the cooling plate so as at least substantially to conform to the shape of the heat transfer members and/or the cooling plate.
  • the electrical grounding connector can be compressed when the cooling plate is mounted during assembly of the battery module. This can establish and maintain the electrical contact between the heat transfer members and the cooling plate.
  • a thermally conductive interface can be disposed between said heat transfer members and the cooling plate.
  • the thermally conductive interface can comprise a deformable material.
  • the thermally conductive interface can be deformed so as at least substantially to comply with the shape of the heat transfer members and/or the cooling plate. The mounting of the cooling plate during assembly of the battery module can cause the thermally conductive interface to deform.
  • the thermally conductive interface can be electrically insulating.
  • the thermally conductive interface can be disposed adjacent to the electrically conductive elastomer.
  • the thermally conductive interface and the electrically conductive elastomer can be arranged in a non-overlapping arrangement.
  • a channel or cut-out can be formed in the thermally conductive interface to accommodate the electrically conductive elastomer.
  • the electrically conductive elastomer can be disposed along an edge of the thermally conductive interface.
  • the electrically conductive elastomer can be in the form of an elongate strip.
  • the thermally conductive interface and the electrical grounding connector can conform to the shape of the heat transfer members and/or the cooling plate.
  • the thermally conductive interface and the electrically conductive elastomer can establish electrical and thermal connections between the heat transfer members and the cooling plate.
  • the thermally conductive interface and the electrically conductive elastomer form a composite layer to provide thermal and electrical connections between the heat transfer members and the cooling plate.
  • the cooling plate can be a heat sink.
  • the cooling plate can be actively cooled.
  • the cooling plate can be cooled by a coolant liquid.
  • the coolant liquid can be circulated through a chamber formed in the cooling plate.
  • a traction battery comprising a plurality of the battery modules described herein.
  • a vehicle comprising a traction battery as described herein.
  • Figure 1 shows a schematic representation of a vehicle incorporating a traction battery in accordance with an embodiment of the present invention
  • Figure 2 shows a perspective view of a battery module forming the traction battery shown in Figure 1 ;
  • FIG. 3 shows a vertical cross section through the battery module shown in Figure
  • Figure 4 shows a horizontal cross section of the battery module shown in Figure 2.
  • Figure 5 shows an exploded perspective view of a heat transfer member and associated first and second battery cells in the battery module shown in Figure 2.
  • a traction battery 1 comprising a plurality of battery modules 2 in accordance with an embodiment of the present invention will now be described with reference to the accompanying figures.
  • the traction battery 1 is configured to supply electrical energy to one or more electric machine 3 to propel a vehicle 4, as shown schematically in Figure 1 .
  • the vehicle 4 in the present embodiment is an automobile, but the invention is not limited in this respect.
  • the traction battery 1 comprises a plurality of like battery modules 2 (labelled 2-1 , 2-2... 2-n in Figure 1 ).
  • a perspective view of one of the battery modules 2 is shown in Figure 2.
  • a vertical sectional view of the battery module 2 is shown in Figure 3; and a horizontal sectional view of the battery module 2 is shown in Figure 4.
  • the battery module 2 comprises a plurality of battery cells 5 and an electronic control unit (ECU).
  • the battery cells 5 are lithium ion cells but other cell compositions are also contemplated.
  • the battery cells 5 can have various configurations, including cylindrical, rectangular (prismatic) and pouch cells.
  • the battery cells 5 are pouch cells each having a pouch formed from a flexible material.
  • the battery cells 5 comprise first and second major surfaces 6-1 , 6-2; upper and lower end walls 7-1 , 7-2; and first and second side walls 8-1 , 8-2.
  • the end walls 7-1 , 7-2 and/or the side walls 8-1 , 8-2 can be in the form of edges formed by folding or joining the flexible material to form the pouch.
  • the battery cells 5 are mounted in a housing 9 in a uniform array.
  • the battery cells 5 are disposed in the housing 9 such that the first and second major surfaces 6-1 , 6-2 of adjacent battery cells 5 are arranged in a face-to-face arrangement. This configuration allows more battery cells 5 to be accommodated within a given volume and can thus provide a greater energy density.
  • the first and second major surfaces 6-1 , 6-2 of the battery cells 5 have a large surface area to facilitate cooling.
  • the first and second major surfaces 6-1 , 6-2 are generally rectangular.
  • the battery cells 5 generate heat in proportion to the rate of charge/discharge.
  • heat transfer plates 10 are sandwiched between pairs of the battery cells 5.
  • the heat transfer plates 10 each comprise first and second contact surfacesl 1 -1 , 1 1 -2, first and second lateral flanges 12-1 , 12-2 and a bottom flange 12-3.
  • the first and second lateral flanges 12-1 , 12-2 and the bottom flange 12-3 are disposed substantially perpendicular to the first contact surface 1 1 -1 .
  • the heat transfer plates 10 provide a thermally conductive path to transfer thermal energy from the battery cells 5 to a cooling plate 13 positioned along a lateral side of the housing 9.
  • the cooling plate 13 is externally cooled by a liquid coolant pumped through a supply conduit 15.
  • the first and second lateral flanges 12-1 , 12-2 are disposed laterally outside the first and second side walls 8-1 , 8-2 of the battery cells 5.
  • the first lateral flange 12-1 is disposed adjacent to the cooling plate 13.
  • the heat transfer plates 10 each comprise an electrically conductive substrate 16 having a coating 17.
  • the electrically conductive substrate 16 is formed from aluminium, but other conductive materials are contemplated.
  • the heat transfer plate coating 17 is electrically insulating and is applied to electrically isolate the battery cells 5.
  • HV high voltage
  • the heat transfer plate coating 17 is selected to provide electrical insulation with minimal effect on heat flow between the battery cell 5 and the electrically conductive substrate 16.
  • the first and second lateral flanges 12-1 , 12-2 and the bottom flange 12-3 are sized such that first and second battery cells 5-1 , 5-2 are received within each heat transfer plate 10.
  • the first major surface 6-1 of the first battery cell 5-1 is disposed in face contact with the contact surface 1 1 of the associated heat transfer plate 10.
  • the second major surface 6-2 of the second battery cell 5-2 is disposed in face contact with the contact surface 1 1 of an adjacent heat transfer plate 10.
  • one of the first and second major surfaces 6-1 , 6-2 of each battery cell 5 is disposed in contact with one of said heat transfer plates 10.
  • the heat transfer plates 10 are disposed within the housing 9 such that the first lateral flanges 12-1 are arranged in a substantially planar arrangement.
  • the first lateral flanges 12-1 may be offset from each other.
  • the cooling plate 13 is substantially planar and is disposed alongside the first lateral flanges 12-1 of each of the heat transfer plates 10.
  • a thermally conductive interface 18 is disposed between the first lateral flanges 12-1 and the cooling plate 13 to establish a thermal conduction pathway between the first lateral flanges 12-1 and the cooling plate 13.
  • the thermally conductive interface 18 is a compliant, malleable material formed into a continuous layer. When the battery module 2 is assembled, the thermally conductive interface 18 is deformed to fill any gaps or spaces between the heat transfer plates 10 and the cooling plate 13.
  • the thermally conductive interface 18 can thereby reduce or eliminate air gaps and help to ensure that mechanical contact is established and maintained between the first lateral flanges 12-1 and the cooling plate 13. The transfer of heat from the heat transfer plates 10 to the cooling plate 13 is thereby performed efficiently.
  • the thermally conductive interface 18 can be in the form of a compliant, thermally conductive 'gap pad' or 'gap filler' material available from Bergquist, Saint-Gobain, Kunze and others. These materials are thermally conductive but electrically insulating.
  • the battery modules 2 also comprise an electrical grounding connector 19 for establishing an electrical ground connection from each of the heat transfer plates 10 to a vehicle ground connection (not shown).
  • the electrical grounding connector 19 is formed from an electrically conductive elastomeric material which is resiliently deformable. Suitable electrically conductive elastomeric materials are made from silicone or fluorosilicone elastomers loaded with conductive particles such as nickel, nickel plated graphite, silver plated aluminium or silver plated copper. These materials are available from commercial sources such as Kemtron and EuroTechnologies. The electrically conductive elastomeric materials typically have relatively poor thermal conductivity compared to the thermally conductive interface 18.
  • the electrical grounding connector 19 is an elongate strip arranged to establish contact with each heat transfer plate 10 in the battery module 2.
  • a coating aperture 20 is formed in the heat transfer plate coating 17 of each of the heat transfer plates 10 to expose the electrically conductive substrate 16.
  • the coating apertures 20 are formed in like positions on each of the heat transfer plates 10 to facilitate alignment with the electrical grounding connector 19.
  • the coating apertures 20 are formed in an outer surface 21 of the first lateral flanges 12-1 .
  • the electrical grounding connector 19 is applied coincident with the coating apertures 20 to establish an electrical connection between the electrically conductive substrate 16 of each heat transfer plate 10 and the electrical grounding connector 19.
  • An elongate channel or cutout can be formed in the thermally conductive interface 18 to accommodate the electrical grounding connector 19.
  • the electrical grounding connector 19 is disposed alongside the thermally conductive interface 18 in a non- overlapping configuration, as shown schematically in Figure 5.
  • battery cells 5 and the heat transfer plates 10 are disposed in the housing 9.
  • the thermally conductive interface 18 is applied to the first lateral flanges 12-1 of the heat transfer plates 10.
  • the electrical grounding connector 19 is also applied to the first lateral flanges 12-1 and is positioned coincident with the coating apertures 20 formed in the heat transfer plate coating 17.
  • the cooling plate 13 is mounted to the housing 9, thereby deforming the thermally conductive interface 18 and compressing the electrical grounding connector 19.
  • the thermally conductive interface 18 and the electrical grounding connector 19 conform to the space between the heat transfer plates 10 and the cooling plate 13.
  • the resulting composite layer in use, provides thermal conductivity and establishes an electrical ground contact.
  • the deformation of the thermally conductive interface 18 helps to ensure the efficient transfer of heat from the heat transfer plates 10 to the cooling plate 13.
  • the compression of the electrical grounding connector 19 helps to ensure that a good electrical grounding connection is established between the heat transfer plates 10 and the cooling plate 13.
  • the electrical connections established by the electrical grounding connector 19 are substantially immune to the effects of vibration, humidity and temperature change.
  • the deformable nature of the thermally conductive interface 18 and the resilient nature of the electrical grounding connector 19 thereby complement each other.
  • the thermally conductive interface 18 and the electrical grounding connector 19 are disposed adjacent to each other in a non-overlapping arrangement. It will be appreciated that the thickness of the thermally conductive interface 18 and the electrical grounding connector 19 should be selected so as not to compromise either thermal or electrical performance.
  • the electrical grounding connector 19 is provided to provide a means of detecting loss of electrical isolation between the terminals of a battery cell 5 and the adjacent heat transfer plate 10. This could result for example, from an internal failure in the cell pouch structure, plus corrosive damage by the electrolyte or other released chemical to the heat transfer plate coating 17. Detection of such a loss of isolation is carried out by an isolation measurement circuit (not shown), which is a known technology and is fitted to HV batteries as a legal requirement. Failure to detect such fault could result in a short circuit from an HV node to a battery mechanical component which presents a potential risk for personnel servicing the vehicle.
  • the location of the coating apertures 20 and the corresponding positioning of the electrical grounding connector 19 can be modified. Rather than positioning the coating apertures 20 to establish a grounding connection with the cooling plate 13, they could be arranged to establish an electrical connection with the housing 9 or another support framework.
  • the coating 17 apertures 20 could be formed in the bottom flange 12-3 for establishing an electrical contact with the housing 9. It will be appreciated that various changes and modifications can be made to the battery module 2 described herein without departing from the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention se rapporte à un module de batterie pour une batterie de traction. Le module de batterie comprend une pluralité d'éléments de batterie et une pluralité d'éléments de transfert de chaleur. Une plaque de refroidissement est disposée de sorte à transférer la chaleur provenant des éléments de transfert de chaleur. Un connecteur de mise à la terre électrique est raccordé électriquement à chaque dit élément de transfert de chaleur. Le connecteur de mise à la terre électrique comprend un élastomère électroconducteur. La présente invention se rapporte également à une batterie de traction ; et à un véhicule.
PCT/IB2016/052071 2015-04-13 2016-04-12 Module de batterie WO2016166659A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1531/MUM/2015 2015-04-13
IN1531MU2015 2015-04-13

Publications (1)

Publication Number Publication Date
WO2016166659A1 true WO2016166659A1 (fr) 2016-10-20

Family

ID=53784458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/052071 WO2016166659A1 (fr) 2015-04-13 2016-04-12 Module de batterie

Country Status (2)

Country Link
GB (1) GB2537431B (fr)
WO (1) WO2016166659A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109216799A (zh) * 2017-07-07 2019-01-15 现代自动车株式会社 电池系统
WO2019166335A1 (fr) 2018-02-27 2019-09-06 Bayerische Motoren Werke Aktiengesellschaft Module de batterie pour batterie d'un véhicule automobile et batterie pour véhicule automobile
CN114830411A (zh) * 2020-03-12 2022-07-29 株式会社东芝 电池模块及电池系统

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US11189872B2 (en) 2017-01-27 2021-11-30 Ford Global Technologies, Llc Multifunctional pouch battery cell frame
US10930978B2 (en) 2017-01-27 2021-02-23 Ford Global Technologies, Llc Multifunctional ion pouch battery cell frame
US10700323B2 (en) 2017-08-23 2020-06-30 Ford Global Technologies, Llc Apparatus for directed vent gas expulsion in battery cells
US10446819B2 (en) 2017-09-27 2019-10-15 Ford Global Technologies, Llc Apparatus and method for directed vent gas expulsion in battery cells

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WO2010056750A2 (fr) * 2008-11-12 2010-05-20 Johnson Controls - Saft Advanced Power Solutions Llc Système de batterie avec échangeur de chaleur
KR20120054771A (ko) * 2010-11-22 2012-05-31 주식회사 한국쿨러 전기 차량용 전지셀의 히트 싱크 및 그를 이용한 전지셀 모듈
US20130065103A1 (en) * 2010-05-26 2013-03-14 Sumitomo Heavy Industries, Ltd. Shovel

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