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WO2015043869A1 - Battery module for an electric or hybrid vehicle to ensure the cooling of the cells, and associated battery - Google Patents

Battery module for an electric or hybrid vehicle to ensure the cooling of the cells, and associated battery Download PDF

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Publication number
WO2015043869A1
WO2015043869A1 PCT/EP2014/068320 EP2014068320W WO2015043869A1 WO 2015043869 A1 WO2015043869 A1 WO 2015043869A1 EP 2014068320 W EP2014068320 W EP 2014068320W WO 2015043869 A1 WO2015043869 A1 WO 2015043869A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical connection
battery module
cells
cooling means
connection device
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.)
Ceased
Application number
PCT/EP2014/068320
Other languages
French (fr)
Inventor
Karen Chauvin
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of WO2015043869A1 publication Critical patent/WO2015043869A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • 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
    • H01M50/20—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
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
    • H01R11/288—Interconnections between 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
    • 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

  • Battery module for electric or hybrid vehicles for cooling the cells, and associated battery.
  • the invention mainly relates to a battery module for an electric or hybrid vehicle.
  • the invention also relates to an associated battery comprising at least one such module.
  • the technical field of the invention relates to energy sources with electrochemical storage comprising a plurality of electrochemical cells connected in series. These energy sources are used in particular electric batteries to ensure the traction of electric vehicles or hybrids.
  • a battery comprises an assembly of modules which are arranged in a protective casing, these modules comprising an assembly of electrochemical cells.
  • Lithium ion batteries are particularly well known.
  • the electrochemical cells may be cylindrical, prismatic or flexible.
  • the invention relates to the field of prismatic cells which are in a rectangular shape, with a width of the order of one centimeter.
  • Each cell includes a positive terminal and a negative terminal each of which is respectively electrically connected to an opposite negative or positive terminal of an adjacent cell.
  • the subject of the present invention is a battery module making it possible to dissipate the excess heat and to homogenize the temperature at the level of the electrodes via the terminals of the cells of the module.
  • the battery module for an electric or hybrid vehicle comprises at least two electrochemical cells each comprising at least one positive terminal and at least one negative terminal projecting from one of the faces of the cell, characterized in that that said cell terminals are electrically connected by means of at least one electrical connection device disposed on the faces of the cells from which said terminals project, each electrical connection device comprises a first terminal connection means of a terminal cell and second connecting means to a terminal of another cell, and each electrical connecting device comprises cooling means adapted to cool said cells.
  • the battery module according to the invention advantageously allows the batteries to be cooled at their terminals by means of an electrical connection device which also ensures the electrical connection between the cells.
  • This cooling by the terminals is more effective than the end of the projecting terminals is the hottest part of the batteries.
  • each cooling means is disposed on the face of the electrical connection device opposite to that which is in contact with the cells on which the electrical connection device is arranged.
  • the electrical connection device provides the electrical connection of two adjacent cells.
  • the cells of a battery module according to the invention are preferably stacked, two adjacent cells then being in contact at one of their faces.
  • each cooling means and at least a part of the body of the electrical connection device are thermally conductive.
  • each cooling means is able to cool the batteries by being in contact with an active air flow, such as a pulsed cold air flow, or passive air, such as circulating ambient air. in the associated battery.
  • an active air flow such as a pulsed cold air flow, or passive air, such as circulating ambient air. in the associated battery.
  • the cell terminals of a battery module according to the invention project from the same face of said battery module.
  • the first connecting means is adapted to allow a connection to a positive or negative terminal of a cell and respectively the second connecting means is adapted to allow a connection to a terminal of opposite polarity of a cell.
  • the battery module according to the invention may also include the following optional characteristics considered in isolation or in any possible technical combination.
  • the electrical connection device comprises an electrically conductive plate comprising at least two orifices capable of allowing respectively the passage of a terminal of a cell and a terminal of another cell, these two orifices defining the first and the second liaison medium;
  • the two orifices have a different diameter, which advantageously makes it possible to form polarizing means
  • the electrically conductive plate is preferably metallic
  • the electrical connection device comprises at least two fixing means for securing the electrical connection device to said terminals of said cells, which ensures the maintenance of the electrical connection device on the cells;
  • said fixing means are nuts in which said terminals engage
  • these nuts are preferably made of a conductive thermal material
  • At least one of the nuts comprises at least one lateral recess, this nut forming a cooling means
  • the battery module comprises at least two electrical connection devices and said electrical connection devices are secured to each other by means of an insulating material;
  • the electrical connection devices are preferably all identical in particular to simplify and facilitate their manufacture, storage and installation;
  • the shape and / or the number and / or the arrangement of the cooling means of an electrical connection device or of several separate electrical connection devices differ according to the position in the module of the cells on which the device (s) electrical connection is (are) disposed;
  • cooling means are arranged between the two connecting means of said associated electrical connection device;
  • said cooling means are at least one rod and / or at least one fin
  • cooling means are protuberances, fins or rods of different heights and / or diameters;
  • cooling means are preferably aligned along a plurality of lines disposed on either side of the longitudinal central axis of the electrical connection device;
  • said cooling means are at least one protuberance and at least one fin or at least one central rod and at least one fin;
  • the fins are preferably curved and arranged on either side of said protuberance or of said central rod;
  • said cooling means each comprise a planar upper face
  • cooling means comprising a planar upper face substantially have the shape, in a longitudinally-oriented transverse section, of an isosceles trapezium;
  • the cells are stacked in such a way that the positive terminals and the negative terminals of all the cells of the same battery module according to the invention are respectively arranged on two opposite sides of the face of the battery module on which the device of electrical connection is arranged; the electrical connection devices thus extend substantially over the entire width of said module;
  • the invention also relates to a battery for an electric or hybrid vehicle comprising at least one battery module of the aforementioned type.
  • the invention also relates to a battery for electric or hybrid vehicle comprising at least one battery module of the aforesaid type disposed in a protective housing comprising a cover.
  • the battery comprises at least one air inlet and at least one air outlet provided at the hood to form an airflow flow at the face of the battery module which comprises said cell terminals. the air inlet, the air outlet and said cooling means being arranged so that said air flow is directed towards the cooling means.
  • the battery cover comprises a first side wall comprising an air inlet and a second side wall opposite to the first side wall which comprises an air outlet, at least one pulsed air circulation flow is generated between the air inlet and the air outlet, said air flow flow being directed towards said cooling means of the battery modules according to the invention included in the battery; preferentially, in this case, the cells are stacked in such a way that the positive terminals and the negative terminals of all the cells of the same battery module according to the invention are respectively arranged on two opposite sides of the face of the battery module. on which the electrical connection device is arranged;
  • the battery cover comprises a first side wall comprising at least two air inlets and a second side wall opposite to the first side wall which comprises at least two air outlets, at least two pulsed air circulation streams; are generated between or by the two air inlets and the two air outlets, said air flow flows being directed towards the fixing means which can be said nuts forming cooling means; preferentially, these nuts comprise lateral recesses; the battery comprises at least one orientation partition of at least one airflow flow which extends substantially longitudinally over at least a portion of the internal face of at least one of the longitudinal walls of the hood of the battery, in the axial proximity of at least one airflow flow generated between at least one inlet and at least one associated air outlet.
  • FIG. 1 is a schematic representation, in a view from above, of an embodiment of a battery module according to the invention which comprises a stack of cells according to a first variant embodiment, the polarity of the terminals of the cells. arranged on the same side of the module being identical;
  • FIG. 2 is a schematic representation, in a view from above, of an embodiment of a battery module according to the invention which comprises a stack of cells according to a second variant embodiment, the polarity of the terminals of the cells. arranged on the same side being alternated;
  • Figure 3 is a sectional view of the battery module according to the invention along the line of section III-III of Figure 1;
  • Figure 4 is a schematic representation, in a view from above, of an electrical connection device according to a first particular embodiment
  • Figure 5 is a schematic representation, in a side view and along arrow V, of the electrical connection device of the first embodiment of Figure 4;
  • Figure 6 is a schematic representation, in a view from above, of an electrical connection device according to a second particular embodiment
  • Figure 7 is a schematic representation, in a sectional view, of the electrical connection device of the second particular embodiment along section line VII-VII of Figure 6;
  • Figure 8 is a schematic representation, in a view from above, of an electrical connection device according to a third particular embodiment;
  • Figure 9 is a schematic representation, in a sectional view, of the electrical connection device of the third particular embodiment along section line IX-IX of Figure 8;
  • FIG. 10 is a schematic representation, in a view from above, of the battery module according to the invention of the first variant embodiment of FIG. 1, on which is represented the pulsed air flow for cooling the terminals. cells ;
  • Figure 1 1 is a schematic representation, in a side view, of a battery according to the invention in a first configuration
  • FIG. 12 is a schematic representation, in a side view, of a battery according to the invention in a second configuration; and FIG. 13 is a diagrammatic representation in perspective of an embodiment of an attachment nut of an electrical connection device comprising cooling means, this nut being for example used in the battery of the second configuration illustrated on FIG. Figure 12.
  • the battery module 1 comprises a stack of electrochemical cells 2.
  • Each cell 2 comprises on one of its faces a positive terminal 3 and a terminal negative 4, also called pods.
  • These positive 3 and negative 4 terminals may take the form of smooth rod, or threaded rod.
  • the stack illustrated in FIG. 1 is said to be "simple" because the positive terminals 3 and the negative terminals 4 of the cells 2 of the battery module 1 are all located on the same side.
  • a positive or negative terminal 4 is electrically connected to an opposite positive and negative terminal 4 respectively of an adjacent cell 2.
  • electrical connection device 5 is for example an electrical connection piece formed for example made of a longitudinal metal plate 6.
  • electrical connection device 5 comprises at least two connecting means 7, 8 for connecting the electrical connection device 5 to the cells 2.
  • These connecting means 7, 8 are, for example, orifices 7 and 8 adapted to receive a respective positive and negative terminal 4 4. It may be provided that the orifices intended to receive the positive terminals 3 are not of the same diameter as the receiving orifices of the negative terminals 4 so that these orifices 7, 8 form keying means. According to a particular embodiment, these orifices 7, 8 are located at each end of the electric connection plate 6.
  • the battery module of the invention 1 comprises a succession of electrical connection devices 5 arranged obliquely on the upper face of the module 1 which comprises the faces of the cells 2 comprising the positive terminals 3 and negative 4.
  • the positive 3 and negative 4 terminals of two adjacent cells 2 pass respectively through the associated orifices 7 and 8 of the electrical connection device 5.
  • the terminals 3, 4 are secured to this electrical connection device 5 by a simple nut 9, 10 when the rod of the terminal 3, 4 is threaded, or by any other fastening means known to those skilled in the art when the rod of the terminal is not threaded.
  • each electrical connection device 5 comprises cooling means 12. According to a particular embodiment, these cooling means 12 are arranged between the orifices 7, 8. However, according to another embodiment, these means 12 are located on all or part of the electrical connection device 5.
  • these cooling means 12 extend substantially perpendicularly to this electrical connection device 5, on the face of the electrical connection device 5 opposite that which is in contact with the cells 2 on which the connection device electrical 5 is arranged.
  • cooling means 12 are intended to be in contact with a pulsed air circulation flow 13 (FIG. 10), created in the battery and flowing at the face of the battery module 1 comprising the cooling means 12, such as it will be described later.
  • the cooling means 12 comprise a central rod 15 and a plurality of fins 16, for example eight in number, distributed four by four, on either side of the central rod 15.
  • the concave side of each fin 16 is oriented towards the central rod 15, the fins 16 arranged on the same side of the central rod 15 having in this case a central axis coincident.
  • the cooling means 12a comprise a plurality of rods 15a, for example ten in number, distributed over the surface of the electrical connection device 5.
  • the rods 15a are distributed in equal number on two lines on either side of the longitudinal central axis of the electrical connection device 5a, the rods 15a of the same line being offset longitudinally relative to the rods 15a of the other line.
  • the rods 15a are distributed as follows: two rods of smaller height 15a1 are arranged in the central portion of the electrical connection device 5a, four rods of medium height 15a2 are arranged in pairs on both sides small rods 15a1 and four rods of greater height 15a3 are arranged in pairs on either side of the rods of medium height 15a2.
  • the cooling means 12b comprise a plurality of flat fins 16b distributed in different rows 17b of several fins 16b.
  • the cooling means 12, 12a, 12b subjected to the pulsed air circulation flow 13 make it possible to cool the terminals 3, 4 of the cells 2 as well as the electrodes of these cells 2, via the associated electrical connection devices 5, 5a, 5b.
  • the battery module 1 comprising the electrical connection devices 5b as shown in Figures 8 and 9, is placed in a protective housing 20, thereby forming a battery.
  • the battery includes a hood 21 which includes an air inlet 22 to level of a first side wall and an air outlet 23 at the opposite side wall, the air inlet 22 and outlet 23 being merged according to the representation of Figure 1 1 due to their axial alignment.
  • inlet 22 and air outlet 23 make it possible to create a flow of pulsed air 13 which circulates at the face 24 of the module 1 while being in contact with the cooling means 12b of the electrical connection device 5b, which it results in the cooling of the positive 3 and negative 4 terminals of the cells 2.
  • orientation partitions 25 of the air flow 13 extending longitudinally on the inner face of the longitudinal main wall 26 of the cover 21 of the battery protection housing 20. These orientation partitions 25 of the air flow 13 make it possible to direct and confine the flow of pulsed air 13 to the cooling means 12b in order to ensure optimum heat exchange between these cooling means 12b and the flow of air. air 13.
  • the geometry of the cooling means 12, 12a, 12b in the form of rods, flat fins or not, is evaluated and selected according to the cooling power required.
  • the inhomogeneity of the cooling means 12, 12a, 12b, both in their shape and in their size, promotes cooling by contact with the air flow 13.
  • all the electrical connection devices 5, 5a, 5b of the module 1 are identical, or that the electrical connection devices 5, 5a, 5b are different according to the position of the associated cells 2 and their more or less important need to be cooled.
  • connection devices 5, 5a, 5b may be interconnected by means of an epoxy resin insulating material or by plastic overmolding, so that all the electrical connection devices 5, 5a, 5b form a single piece to be disposed on the face of the module 1 before it is placed in the protective housing 20.
  • the cooling means 12c may be nuts 9, 10 for fastening the electrical connection devices 5d with the positive and negative terminals of the cells that are not visible in this figure. These nuts 9, 10, after tightening, protrude from the associated electrical connection device 5d, the opposite side to that of the connecting device 5d electrical being in contact with the face of the battery module 1 on which the electrical connection device 5d is disposed.
  • the nut forming the cooling means 12c comprises lateral recesses 28 for increasing the contact surface between the pulsed air flow and the nut 12c.
  • a first side wall of the hood 21 comprises two air inlets 29a, 29b, and the opposite side wall comprises two pulsed air outlets 30a, 30b.
  • the air inlets 29a, 29b and the air outlets 30a, 30b are located respectively substantially in the longitudinal axis of the rows of the nuts 9, 10 and are merged in FIG. 12 because of their axial alignment.
  • air inlets 29a, 29b and 30a, 30b generate two pulsed air streams 31a, 31b which when they circulate are in contact with the nuts 12c forming cooling means.
  • An airflow orientation partition 32a, 32b extending longitudinally on the inner face of the longitudinal main wall 26 of the cover 21 of the battery protection housing 20, is formed near each air inlet 29a. , 29b so as to confine the resulting pulsed air flow 31 at the cooling means 12c.
  • the electrical connection device 5d shown in FIG. 12 comprises, as sole cooling means 12c, the nuts 9, 10 for fixing the positive 3 and negative 4 terminals to the electrical connection devices 5d.
  • the electrical connection devices 5 further comprise cooling means 12, 12a, 12b such as those described with reference to Figures 4 to 9.
  • pulsed air inlets and outlets will be arranged accordingly to generate air flow streams in contact with all cooling means 12, 12a, 12b, 12c.
  • the use of the nuts 9, 10 comprising lateral recesses 28 to form cooling means 12c is particularly advantageous when the stack of the cells 2 is such that the positive 3 and negative 4 terminals of the cells 2 of the stack are alternately arranged on one side and the other of the module 1 ( Figure 2).
  • the electrical connection devices 5d connecting a positive 3 or negative 4 terminal to the Negative 4 or positive 3 opposite terminal of the adjacent cell 2 are of short length and do not extend across the width of the module unlike the electrical connection devices 5, 5a, 5b designed for single stacking ( Figure 1).
  • cooling means 12c thus makes it possible to have cooling means available when the cells 2 are stacked in such a way that the positive 3 and negative 4 terminals arranged on one and the same side are alternated.
  • the electrical connection device 5, 5a, 5b, 5d of the invention from which the cooling means 12, 12a, 12b, 12c extend, that they are directly secured to the electrical connection device 5, 5a, 5b as is the case for the configurations of FIGS. 4 to 9, or that they are fixing nuts of the electrical connection device 5d with the positive 3 and negative 4 terminals of the cells 2, makes it possible to ensure a dual function of electrical connection and cooling, the latter function being implemented by the circulation of the air stream or pulsed into the battery.

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

Abstract

The invention relates primarily to a battery module (1) for an electric or hybrid vehicle comprising at least two electrochemical cells (2), each comprising at least one positive terminal (3) and at least one negative terminal (4) protruding from one of the faces of said cell (2). Said terminals (3, 4) of said cells (2) are electrically connected by means of at least one electrical linking device (5) situated on the faces of said cells (2) from which said terminals (3, 4) protrude, whereby each electrical linking device (5) comprises a first means of linking (7, 8) to a terminal (3, 4) of a cell (2) and a second means of linking (7, 8) to a terminal (3, 4) of another cell (2), and each electrical linking device (5) comprises means of cooling (12) capable of cooling said cells (2).

Description

Module de batterie pour véhicule électrique ou hybride pour assurer le refroidissement des cellules, et batterie associée.  Battery module for electric or hybrid vehicles for cooling the cells, and associated battery.

L'invention concerne principalement un module de batterie pour véhicule électrique ou hybride. The invention mainly relates to a battery module for an electric or hybrid vehicle.

L'invention porte également sur une batterie associée comprenant au moins un tel module.  The invention also relates to an associated battery comprising at least one such module.

Le domaine technique de l'invention concerne les sources d'énergie à stockage électrochimique comprenant plusieurs cellules électrochimiques connectées en série. Ces sources d'énergie sont notamment utilisées dans les batteries électriques pour assurer la traction des véhicules électriques ou hybrides.  The technical field of the invention relates to energy sources with electrochemical storage comprising a plurality of electrochemical cells connected in series. These energy sources are used in particular electric batteries to ensure the traction of electric vehicles or hybrids.

Une batterie comprend un assemblage de modules qui sont disposés dans un boîtier de protection, ces modules comprenant un assemblage de cellules électrochimiques.  A battery comprises an assembly of modules which are arranged in a protective casing, these modules comprising an assembly of electrochemical cells.

Dans les cellules ont lieu des réactions électrochimiques réversibles permettant de produire du courant lors de la décharge de la batterie, ou de stocker l'énergie lorsque la batterie est en charge. Les batteries de type lithium- ion sont particulièrement connues.  In the cells there are reversible electrochemical reactions to produce current when the battery is discharged, or to store energy when the battery is charging. Lithium ion batteries are particularly well known.

Les cellules électrochimiques peuvent être de type cylindrique, prismatique ou souple. L'invention se rapporte au domaine des cellules prismatiques qui se présentent sous une forme rectangulaire, de largeur de l'ordre d'un centimètre. Chaque cellule comprend une borne positive et une borne négative qui sont chacune respectivement reliées électriquement à une borne opposée négative ou positive d'une cellule adjacente.  The electrochemical cells may be cylindrical, prismatic or flexible. The invention relates to the field of prismatic cells which are in a rectangular shape, with a width of the order of one centimeter. Each cell includes a positive terminal and a negative terminal each of which is respectively electrically connected to an opposite negative or positive terminal of an adjacent cell.

Les charges et les décharges de la batterie provoquent une production de chaleur au niveau des bornes des cellules des modules et dans les électrodes des cellules supportant des réactions chimiques exothermiques, ce qui peut engendrer une détérioration de ces électrodes ainsi que des cellules associées, et une réduction de leur durée de vie. Afin de résoudre ce problème, la présente invention a pour objet un module de batterie permettant de dissiper la chaleur en excès et d'homogénéiser la température au niveau des électrodes via les bornes des cellules du module. Charges and discharges of the battery cause heat generation at the cell terminals of the modules and in the electrodes of the cells supporting exothermic chemical reactions, which can lead to deterioration of these electrodes and associated cells, and reduction of their life. In order to solve this problem, the subject of the present invention is a battery module making it possible to dissipate the excess heat and to homogenize the temperature at the level of the electrodes via the terminals of the cells of the module.

A cet effet, le module de batterie pour véhicule électrique ou hybride selon l'invention comprend au moins deux cellules électrochimiques comprenant chacune au moins une borne positive et au moins une borne négative faisant saillie depuis l'une des faces de la cellule, caractérisé en ce que lesdites bornes des cellules sont connectées électriquement au moyen d'au moins un dispositif de liaison électrique disposé sur les faces des cellules depuis lesquelles lesdites bornes font saillie, chaque dispositif de liaison électrique comprend un premier moyen de liaison à une borne d'une cellule et un second moyen de liaison à une borne d'une autre cellule, et chaque dispositif de liaison électrique comprend des moyens de refroidissement aptes à refroidir lesdites cellules.  For this purpose, the battery module for an electric or hybrid vehicle according to the invention comprises at least two electrochemical cells each comprising at least one positive terminal and at least one negative terminal projecting from one of the faces of the cell, characterized in that that said cell terminals are electrically connected by means of at least one electrical connection device disposed on the faces of the cells from which said terminals project, each electrical connection device comprises a first terminal connection means of a terminal cell and second connecting means to a terminal of another cell, and each electrical connecting device comprises cooling means adapted to cool said cells.

De cette façon, le module de batterie selon l'invention permet avantageusement de refroidir les batteries au niveau de leurs bornes au moyen d'un dispositif de liaison électrique qui assure également la liaison électrique entre les cellules. Ce refroidissement par les bornes est d'autant plus efficace que l'extrémité des bornes faisant saillie est la partie la plus chaude des batteries.  In this way, the battery module according to the invention advantageously allows the batteries to be cooled at their terminals by means of an electrical connection device which also ensures the electrical connection between the cells. This cooling by the terminals is more effective than the end of the projecting terminals is the hottest part of the batteries.

Préférentiellement, chaque moyen de refroidissement est disposé sur la face du dispositif de liaison électrique opposée à celle qui est au contact avec les cellules sur lesquelles le dispositif de liaison électrique est disposé.  Preferably, each cooling means is disposed on the face of the electrical connection device opposite to that which is in contact with the cells on which the electrical connection device is arranged.

De manière préférentielle, le dispositif de liaison électrique assure la connexion électrique de deux cellules adjacentes. Les cellules d'un module de batterie selon l'invention sont préférentiellement empilées, deux cellules adjacentes étant alors en contact au niveau de l'une de leurs faces.  Preferably, the electrical connection device provides the electrical connection of two adjacent cells. The cells of a battery module according to the invention are preferably stacked, two adjacent cells then being in contact at one of their faces.

Préférentiellement, chaque moyen de refroidissement ainsi qu'au moins une partie du corps du dispositif de liaison électrique sont thermiquement conducteurs.  Preferably, each cooling means and at least a part of the body of the electrical connection device are thermally conductive.

Avantageusement, chaque moyen de refroidissement est apte à refroidir les batteries en étant au contact d'un flux d'air actif, tel qu'un flux d'air froid puisé, ou de l'air passif, tel que l'air ambiant circulant dans la batterie associée.  Advantageously, each cooling means is able to cool the batteries by being in contact with an active air flow, such as a pulsed cold air flow, or passive air, such as circulating ambient air. in the associated battery.

Préférentiellement, les bornes des cellules d'un module de batterie selon l'invention font saillie depuis une même face dudit module de batterie. De manière préférentielle, le premier moyen de liaison est apte à permettre une liaison à une borne positive ou négative d'une cellule et respectivement le second moyen de liaison est apte à permettre une liaison à une borne de polarité opposée d'une cellule. Preferably, the cell terminals of a battery module according to the invention project from the same face of said battery module. Preferably, the first connecting means is adapted to allow a connection to a positive or negative terminal of a cell and respectively the second connecting means is adapted to allow a connection to a terminal of opposite polarity of a cell.

Le module de batterie selon l'invention peut également comprendre les caractéristiques optionnelles suivantes considérées isolément ou selon toutes les combinaisons techniques possibles.  The battery module according to the invention may also include the following optional characteristics considered in isolation or in any possible technical combination.

- le dispositif de liaison électrique comprend une plaque électriquement conductrice comprenant au moins deux orifices aptes à permettre respectivement le passage d'une borne d'une cellule et d'une borne d'une autre cellule, ces deux orifices définissant le premier et le second moyen de liaison ;  the electrical connection device comprises an electrically conductive plate comprising at least two orifices capable of allowing respectively the passage of a terminal of a cell and a terminal of another cell, these two orifices defining the first and the second liaison medium;

la mise en place du dispositif de liaison électrique sur les cellules est ainsi avantageusement facilitée, la simple insertion des bornes des cellules dans les orifices du dispositif de liaison électrique suivie d'un mouvement de coulissement permet d'installer le dispositif de liaison électrique ;  the establishment of the electrical connection device on the cells is thus advantageously facilitated, the simple insertion of the cell terminals in the orifices of the electrical connection device followed by a sliding movement allows to install the electrical connection device;

- les deux orifices ont un diamètre différent, ce qui permet avantageusement de former des moyens de détrompage ;  the two orifices have a different diameter, which advantageously makes it possible to form polarizing means;

- la plaque électriquement conductrice est préférentiellement métallique ; the electrically conductive plate is preferably metallic;

- le dispositif de liaison électrique comprend au moins deux moyens de fixation permettant de solidariser le dispositif de liaison électrique auxdites bornes desdites cellules, ce qui permet d'assurer le maintien du dispositif de liaison électrique sur les cellules ; - The electrical connection device comprises at least two fixing means for securing the electrical connection device to said terminals of said cells, which ensures the maintenance of the electrical connection device on the cells;

- lesdits moyens de fixation sont des écrous dans lesquels s'engagent lesdites bornes ;  said fixing means are nuts in which said terminals engage;

- ces écrous sont réalisés préférentiellement en une matière thermique conductrice ;  these nuts are preferably made of a conductive thermal material;

- au moins un des écrous comprend au moins un évidement latéral, cet écrou formant un moyen de refroidissement ;  at least one of the nuts comprises at least one lateral recess, this nut forming a cooling means;

- le module de batterie comprend au moins deux dispositifs de liaison électrique et lesdits dispositifs de liaison électrique sont solidarisés entre eux au moyen d'un matériau isolant ; - les dispositifs de liaison électrique sont préférentiellement tous identiques afin notamment de simplifier et faciliter leur fabrication, leur stockage et leur installation ; - The battery module comprises at least two electrical connection devices and said electrical connection devices are secured to each other by means of an insulating material; - The electrical connection devices are preferably all identical in particular to simplify and facilitate their manufacture, storage and installation;

- la forme et/ou le nombre et/ou la disposition des moyens de refroidissement d'un dispositif de liaison électrique ou de plusieurs dispositifs de liaison électrique distincts diffèrent selon la position dans le module des cellules sur lequel le ou les dispositif(s) de liaison électrique est (sont) disposé(s) ;  the shape and / or the number and / or the arrangement of the cooling means of an electrical connection device or of several separate electrical connection devices differ according to the position in the module of the cells on which the device (s) electrical connection is (are) disposed;

cette adaptation des propriétés des moyens de refroidissement en fonction de la position des cellules permet d'optimiser le refroidissement, en tenant compte des parties du module de batterie selon l'invention susceptibles d'être les plus chaudes et/ou de l'exposition à l'air des différentes parties dudit module ;  this adaptation of the properties of the cooling means as a function of the position of the cells makes it possible to optimize the cooling, taking into account the parts of the battery module according to the invention that may be the hottest and / or the exposure to the air of the different parts of said module;

- lesdits moyens de refroidissement sont disposés entre les deux moyens de liaison dudit dispositif de liaison électrique associé ;  said cooling means are arranged between the two connecting means of said associated electrical connection device;

- lesdits moyens de refroidissement sont au moins une tige et/ou au moins une ailette ;  said cooling means are at least one rod and / or at least one fin;

- lesdits moyens de refroidissement sont des protubérances, des ailettes ou des tiges de différentes hauteurs et/ou diamètres ;  said cooling means are protuberances, fins or rods of different heights and / or diameters;

- lesdits moyens de refroidissement sont alignés préférentiellement selon plusieurs lignes disposées de part et d'autre de l'axe central longitudinal du dispositif de liaison électrique ;  said cooling means are preferably aligned along a plurality of lines disposed on either side of the longitudinal central axis of the electrical connection device;

- lesdits moyens de refroidissement sont au moins une protubérance et au moins une ailette ou au moins une tige centrale et au moins une ailette ;  said cooling means are at least one protuberance and at least one fin or at least one central rod and at least one fin;

- les ailettes sont préférentiellement courbées et disposées de part et d'autre de ladite protubérance ou de ladite tige centrale ;  the fins are preferably curved and arranged on either side of said protuberance or of said central rod;

- lesdits moyens de refroidissement comprennent chacun une face supérieure plane ;  said cooling means each comprise a planar upper face;

- lesdits moyens de refroidissement comprenant une face supérieure plane présentent sensiblement la forme, selon une coupe transversale axée longitudinalement, d'un trapèze isocèle ;  said cooling means comprising a planar upper face substantially have the shape, in a longitudinally-oriented transverse section, of an isosceles trapezium;

- les cellules sont empilées de telle façon que les bornes positives et les bornes négatives de toutes les cellules d'un même module de batterie selon l'invention sont disposées respectivement sur deux côtés opposés de la face du module de batterie sur laquelle le dispositif de liaison électrique est disposé ; les dispositifs de liaison électrique s'étendent ainsi sensiblement sur toute la largeur dudit module ; the cells are stacked in such a way that the positive terminals and the negative terminals of all the cells of the same battery module according to the invention are respectively arranged on two opposite sides of the face of the battery module on which the device of electrical connection is arranged; the electrical connection devices thus extend substantially over the entire width of said module;

L'invention porte également sur une batterie pour véhicule électrique ou hybride comprenant au moins un module de batterie du type susdit.  The invention also relates to a battery for an electric or hybrid vehicle comprising at least one battery module of the aforementioned type.

L'invention porte également sur une batterie pour véhicule électrique ou hybride comprenant au moins un module de batterie du type susdit disposé dans un boîtier de protection comprenant un capot. La batterie comprend au moins une entrée d'air et au moins une sortie d'air ménagées au niveau du capot afin de former un flux de circulation d'air au niveau de la face du module de batterie qui comprend lesdites bornes des cellules, l'entrée d'air, la sortie d'air et lesdits moyens de refroidissement étant disposés de manière à ce que ledit flux d'air soit dirigé vers les moyens de refroidissement.  The invention also relates to a battery for electric or hybrid vehicle comprising at least one battery module of the aforesaid type disposed in a protective housing comprising a cover. The battery comprises at least one air inlet and at least one air outlet provided at the hood to form an airflow flow at the face of the battery module which comprises said cell terminals. the air inlet, the air outlet and said cooling means being arranged so that said air flow is directed towards the cooling means.

La batterie selon l'invention peut également comprendre les caractéristiques optionnelles suivantes considérées isolément ou selon toutes les combinaisons techniques possibles :  The battery according to the invention can also comprise the following optional characteristics considered in isolation or according to all the possible technical combinations:

- le capot de la batterie comprend une première paroi latérale comprenant une entrée d'air et une seconde paroi latérale opposée à la première paroi latérale qui comprend une sortie d'air, au moins un flux de circulation d'air puisé est généré entre l'entrée d'air et la sortie d'air, ledit flux de circulation d'air étant dirigé vers lesdits moyens de refroidissement des modules de batterie selon l'invention compris dans la batterie ; préférentiellement, dans ce cas, les cellules sont empilées de telle façon que les bornes positives et les bornes négatives de toutes les cellules d'un même module de batterie selon l'invention sont disposées respectivement sur deux côtés opposés de la face du module de batterie sur laquelle le dispositif de liaison électrique est disposé ;  the battery cover comprises a first side wall comprising an air inlet and a second side wall opposite to the first side wall which comprises an air outlet, at least one pulsed air circulation flow is generated between the air inlet and the air outlet, said air flow flow being directed towards said cooling means of the battery modules according to the invention included in the battery; preferentially, in this case, the cells are stacked in such a way that the positive terminals and the negative terminals of all the cells of the same battery module according to the invention are respectively arranged on two opposite sides of the face of the battery module. on which the electrical connection device is arranged;

- le capot de la batterie comprend une première paroi latérale comprenant au moins deux entrées d'air et une seconde paroi latérale opposée à la première paroi latérale qui comprend au moins deux sorties d'air, au moins deux flux de circulation d'air puisé sont générés entre ou par les deux entrées d'air et les deux sorties d'air, lesdits flux de circulation d'air étant dirigés vers les moyens de fixation pouvant être lesdits écrous formant des moyens de refroidissement ; préférentiellement, ces écrous comportent des évidement latéraux ; - la batterie comprend au moins une cloison d'orientation d'au moins un flux de circulation d'air qui s'étend sensiblement longitudinalement sur au moins une partie de la face interne d'au moins l'une des parois longitudinales du capot de la batterie, à proximité axiale d'au moins un flux de circulation d'air généré entre au moins une entrée et au moins une sortie d'air associées. the battery cover comprises a first side wall comprising at least two air inlets and a second side wall opposite to the first side wall which comprises at least two air outlets, at least two pulsed air circulation streams; are generated between or by the two air inlets and the two air outlets, said air flow flows being directed towards the fixing means which can be said nuts forming cooling means; preferentially, these nuts comprise lateral recesses; the battery comprises at least one orientation partition of at least one airflow flow which extends substantially longitudinally over at least a portion of the internal face of at least one of the longitudinal walls of the hood of the battery, in the axial proximity of at least one airflow flow generated between at least one inlet and at least one associated air outlet.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées parmi lesquelles :  Other features and advantages of the invention will emerge clearly from the description which is given below, by way of indication and in no way limitative, with reference to the appended figures among which:

la figure 1 est une représentation schématique, selon une vue de dessus, d'un mode de réalisation d'un module de batterie conformément à l'invention qui comprend un empilement de cellules selon une première variante de réalisation, la polarité des bornes des cellules disposées d'un même côté du module étant identique ;  FIG. 1 is a schematic representation, in a view from above, of an embodiment of a battery module according to the invention which comprises a stack of cells according to a first variant embodiment, the polarity of the terminals of the cells. arranged on the same side of the module being identical;

la figure 2 est une représentation schématique, selon une vue de dessus, d'un mode de réalisation d'un module de batterie conformément à l'invention qui comprend un empilement de cellules selon une seconde variante de réalisation, la polarité des bornes des cellules disposées d'un même côté étant alternée ; la figure 3 est une vue en coupe du module de batterie conformément à l'invention selon la ligne de coupe lll-lll de la figure 1 ;  FIG. 2 is a schematic representation, in a view from above, of an embodiment of a battery module according to the invention which comprises a stack of cells according to a second variant embodiment, the polarity of the terminals of the cells. arranged on the same side being alternated; Figure 3 is a sectional view of the battery module according to the invention along the line of section III-III of Figure 1;

la figure 4 est une représentation schématique, selon une vue de dessus, d'un dispositif de liaison électrique selon un premier mode particulier de réalisation ;  Figure 4 is a schematic representation, in a view from above, of an electrical connection device according to a first particular embodiment;

la figure 5 est une représentation schématique, selon une vue de côté et selon la flèche V, du dispositif de liaison électrique du premier mode particulier de réalisation de la figure 4 ;  Figure 5 is a schematic representation, in a side view and along arrow V, of the electrical connection device of the first embodiment of Figure 4;

la figure 6 est une représentation schématique, selon une vue de dessus, d'un dispositif de liaison électrique selon un deuxième mode particulier de réalisation ;  Figure 6 is a schematic representation, in a view from above, of an electrical connection device according to a second particular embodiment;

la figure 7 est une représentation schématique, selon une vue en coupe, du dispositif de liaison électrique du deuxième mode particulier de réalisation selon la ligne de coupe VII-VII de la figure 6 ; la figure 8 est une représentation schématique, selon une vue de dessus, d'un dispositif de liaison électrique selon un troisième mode particulier de réalisation ; Figure 7 is a schematic representation, in a sectional view, of the electrical connection device of the second particular embodiment along section line VII-VII of Figure 6; Figure 8 is a schematic representation, in a view from above, of an electrical connection device according to a third particular embodiment;

la figure 9 est une représentation schématique, selon une vue en coupe, du dispositif de liaison électrique du troisième mode particulier de réalisation selon la ligne de coupe IX-IX de la figure 8 ;  Figure 9 is a schematic representation, in a sectional view, of the electrical connection device of the third particular embodiment along section line IX-IX of Figure 8;

la figure 10 est une représentation schématique, selon une vue de dessus, du module de batterie selon l'invention de la première variante de réalisation de la figure 1 , sur laquelle est représenté le flux de circulation d'air puisé assurant le refroidissement des bornes des cellules ;  FIG. 10 is a schematic representation, in a view from above, of the battery module according to the invention of the first variant embodiment of FIG. 1, on which is represented the pulsed air flow for cooling the terminals. cells ;

la figure 1 1 est une représentation schématique, selon une vue de côté, d'une batterie selon l'invention selon une première configuration ;  Figure 1 1 is a schematic representation, in a side view, of a battery according to the invention in a first configuration;

la figure 12 est une représentation schématique, selon une vue de côté, d'une batterie conformément à l'invention selon une seconde configuration ; et la figure 13 est une représentation schématique en perspective d'un mode de réalisation d'un écrou de fixation d'un dispositif de liaison électrique comportant des moyens de refroidissement, cet écrou étant par exemple utilisé dans la batterie de la seconde configuration illustrée sur la figure 12.  Figure 12 is a schematic representation, in a side view, of a battery according to the invention in a second configuration; and FIG. 13 is a diagrammatic representation in perspective of an embodiment of an attachment nut of an electrical connection device comprising cooling means, this nut being for example used in the battery of the second configuration illustrated on FIG. Figure 12.

En référence aux figures 1 , 3, 6, 7 et 10, le module de batterie 1 conformément à une première variante comprend un empilement de cellules électrochimiques 2. Chaque cellule 2 comprend sur l'une de ses faces une borne positive 3 et une borne négative 4, encore dénommées cosses. Ces bornes positive 3 et négative 4 peuvent prendre la forme de tige lisse, ou de tige filetée.  With reference to FIGS. 1, 3, 6, 7 and 10, the battery module 1 according to a first variant comprises a stack of electrochemical cells 2. Each cell 2 comprises on one of its faces a positive terminal 3 and a terminal negative 4, also called pods. These positive 3 and negative 4 terminals may take the form of smooth rod, or threaded rod.

L'empilement illustré en Figure 1 est dit « simple » car les bornes positives 3 et les bornes négatives 4 des cellules 2 du module de batterie 1 sont toutes situées du même côté.  The stack illustrated in FIG. 1 is said to be "simple" because the positive terminals 3 and the negative terminals 4 of the cells 2 of the battery module 1 are all located on the same side.

De façon connue, une borne positive 3 ou négative 4 est reliée électriquement et respectivement à une borne opposée négative 4 et positive 3 d'une cellule adjacente 2.  In a known manner, a positive or negative terminal 4 is electrically connected to an opposite positive and negative terminal 4 respectively of an adjacent cell 2.

Selon l'invention, la liaison électrique entre deux cellules adjacentes 2 est assurée par un dispositif de liaison électrique 5. Ce dispositif de liaison électrique 5 est par exemple une pièce de liaison électrique formée par exemple réalisée d'une plaque métallique longitudinale 6. Le dispositif de liaison électrique 5 comprend au moins deux moyens de liaison 7, 8 afin de relier le dispositif de liaison électrique 5 aux cellules 2. Ces moyens de liaison 7, 8 sont par exemple des orifices 7 et 8 aptes à réceptionner une borne respectivement positive 3 et négative 4. Il pourra être prévu que les orifices destinés à recevoir les bornes positive 3 ne soient pas de même diamètre que les orifices de réception des bornes négatives 4 de sorte que ces orifices 7, 8 forment des moyens de détrompage. Selon un mode de réalisation particulier, ces orifices 7, 8 sont situés à chacune des extrémités de la plaque électrique de liaison 6. According to the invention, the electrical connection between two adjacent cells 2 is provided by an electrical connection device 5. This electrical connection device 5 is for example an electrical connection piece formed for example made of a longitudinal metal plate 6. electrical connection device 5 comprises at least two connecting means 7, 8 for connecting the electrical connection device 5 to the cells 2. These connecting means 7, 8 are, for example, orifices 7 and 8 adapted to receive a respective positive and negative terminal 4 4. It may be provided that the orifices intended to receive the positive terminals 3 are not of the same diameter as the receiving orifices of the negative terminals 4 so that these orifices 7, 8 form keying means. According to a particular embodiment, these orifices 7, 8 are located at each end of the electric connection plate 6.

Tel que cela est visible sur la figure 1 , le module de batterie de l'invention 1 comprend une succession de dispositifs de liaison électrique 5 disposés obliquement sur la face supérieure du module 1 qui comprend les faces des cellules 2 comprenant les bornes positive 3 et négative 4.  As can be seen in FIG. 1, the battery module of the invention 1 comprises a succession of electrical connection devices 5 arranged obliquely on the upper face of the module 1 which comprises the faces of the cells 2 comprising the positive terminals 3 and negative 4.

Tel que cela est illustré sur la figure 3, les bornes positive 3 et négative 4 de deux cellules adjacentes 2 traversent respectivement les orifices associés 7 et 8 du dispositif de liaison électrique 5. Les bornes 3, 4 sont solidarisées à ce dispositif de liaison électrique 5 par un écrou simple 9, 10 lorsque la tige de la borne 3, 4 est filetée, ou par tout autre moyen de fixation connu de l'homme du métier lorsque la tige de la borne n'est pas filetée.  As shown in FIG. 3, the positive 3 and negative 4 terminals of two adjacent cells 2 pass respectively through the associated orifices 7 and 8 of the electrical connection device 5. The terminals 3, 4 are secured to this electrical connection device 5 by a simple nut 9, 10 when the rod of the terminal 3, 4 is threaded, or by any other fastening means known to those skilled in the art when the rod of the terminal is not threaded.

Selon l'invention, chaque dispositif de liaison électrique 5 comprend des moyens de refroidissement 12. Selon un mode de réalisation particulier, ces moyens de refroidissement 12 sont disposés entre les orifices 7, 8. Toutefois, selon un autre mode de réalisation, ces moyens de refroidissement 12 sont situés sur tout ou partie du dispositif de liaison électrique 5.  According to the invention, each electrical connection device 5 comprises cooling means 12. According to a particular embodiment, these cooling means 12 are arranged between the orifices 7, 8. However, according to another embodiment, these means 12 are located on all or part of the electrical connection device 5.

Selon un mode de réalisation, ces moyens de refroidissement 12 s'étendent sensiblement perpendiculairement à ce dispositif de liaison électrique 5, sur la face du dispositif de liaison électrique 5 opposée à celle qui est au contact avec les cellules 2 sur lesquelles le dispositif de liaison électrique 5 est disposé.  According to one embodiment, these cooling means 12 extend substantially perpendicularly to this electrical connection device 5, on the face of the electrical connection device 5 opposite that which is in contact with the cells 2 on which the connection device electrical 5 is arranged.

Ces moyens de refroidissement 12 sont destinés à être en contact avec un flux de circulation d'air puisé 13 (Figure 10), créé dans la batterie et circulant au niveau de la face du module de batterie 1 comprenant les moyens de refroidissement 12, comme il sera décrit plus loin. Selon la variante d'exécution représentée sur les figures 1 , 3, 6, 7 et 10, les moyens de refroidissement 12 comprennent une tige centrale 15 et une pluralité d'ailettes 16, au nombre par exemple de huit, reparties quatre par quatre, de part et d'autre de la tige centrale 15. Selon un mode de réalisation particulier représenté sur la figure 6, le côté concave de chaque ailette 16 est orienté vers la tige centrale 15, les ailettes 16 disposées d'un même côté de la tige centrale 15 ayant en l'espèce un axe central confondu. These cooling means 12 are intended to be in contact with a pulsed air circulation flow 13 (FIG. 10), created in the battery and flowing at the face of the battery module 1 comprising the cooling means 12, such as it will be described later. According to the variant embodiment shown in FIGS. 1, 3, 6, 7 and 10, the cooling means 12 comprise a central rod 15 and a plurality of fins 16, for example eight in number, distributed four by four, on either side of the central rod 15. According to a particular embodiment shown in FIG. 6, the concave side of each fin 16 is oriented towards the central rod 15, the fins 16 arranged on the same side of the central rod 15 having in this case a central axis coincident.

Selon la variante d'exécution représentée sur les figures 4 et 5, les moyens de refroidissement 12a comprennent une pluralité de tiges 15a, au nombre par exemple de dix, réparties sur la surface du dispositif de liaison électrique 5. Selon un exemple particulier de réalisation, les tiges 15a sont réparties en nombre égal sur deux lignes de part et d'autre de l'axe central longitudinal du dispositif de liaison électrique 5a, les tiges 15a d'une même ligne étant décalées longitudinalement par rapport aux tiges 15a de l'autre ligne. Plus précisément, les tiges 15a sont réparties de la façon suivante : deux tiges de plus petite hauteur 15a1 sont disposées dans la partie centrale du dispositif de liaison électrique 5a, quatre tiges de moyenne hauteur 15a2 sont disposées deux par deux de part et d'autre des tiges de petite hauteur 15a1 et quatre tiges de plus grande hauteur 15a3 sont disposées deux par deux de part et d'autre des tiges de moyenne hauteur 15a2.  According to the embodiment variant shown in FIGS. 4 and 5, the cooling means 12a comprise a plurality of rods 15a, for example ten in number, distributed over the surface of the electrical connection device 5. According to a particular embodiment , the rods 15a are distributed in equal number on two lines on either side of the longitudinal central axis of the electrical connection device 5a, the rods 15a of the same line being offset longitudinally relative to the rods 15a of the other line. More specifically, the rods 15a are distributed as follows: two rods of smaller height 15a1 are arranged in the central portion of the electrical connection device 5a, four rods of medium height 15a2 are arranged in pairs on both sides small rods 15a1 and four rods of greater height 15a3 are arranged in pairs on either side of the rods of medium height 15a2.

Toutefois, toutes autres dispositions et quantités de ces tiges 15a peuvent être mises en œuvre.  However, all other arrangements and quantities of these rods 15a can be implemented.

Selon la variante d'exécution représentée sur les figures 8 et 9, les moyens de refroidissement 12b comprennent une pluralité d'ailettes plates 16b réparties selon différentes rangées 17b de plusieurs ailettes 16b.  According to the alternative embodiment shown in Figures 8 and 9, the cooling means 12b comprise a plurality of flat fins 16b distributed in different rows 17b of several fins 16b.

Les moyens de refroidissement 12, 12a, 12b soumis au flux de circulation d'air puisé 13 permettent de refroidir les bornes 3, 4 des cellules 2 ainsi que les électrodes de ces cellules 2, via les dispositifs de liaison électrique associés 5, 5a, 5b.  The cooling means 12, 12a, 12b subjected to the pulsed air circulation flow 13 make it possible to cool the terminals 3, 4 of the cells 2 as well as the electrodes of these cells 2, via the associated electrical connection devices 5, 5a, 5b.

Pour ce faire et en référence à la figure 1 1 , le module de batterie 1 comprenant les dispositifs de liaison électrique 5b tel qu'illustré en figures 8 et 9, est placé dans un boîtier de protection 20, en formant ainsi une batterie. La batterie comprend notamment un capot 21 qui comprend une entrée d'air 22 au niveau d'une première paroi latérale et une sortie d'air 23 au niveau de la paroi latérale opposée, les entrée 22 et sortie 23 d'air étant confondues selon la représentation de la figure 1 1 en raison de leur alignement axial. To do this and with reference to Figure 1 1, the battery module 1 comprising the electrical connection devices 5b as shown in Figures 8 and 9, is placed in a protective housing 20, thereby forming a battery. The battery includes a hood 21 which includes an air inlet 22 to level of a first side wall and an air outlet 23 at the opposite side wall, the air inlet 22 and outlet 23 being merged according to the representation of Figure 1 1 due to their axial alignment.

Ces entrée 22 et sortie d'air 23 permettent de créer un flux d'air puisé 13 qui circule au niveau de la face 24 du module 1 en étant en contact avec les moyens de refroidissement 12b du dispositif de liaison électrique 5b, ce dont il résulte le refroidissement des bornes positive 3 et négative 4 des cellules 2.  These inlet 22 and air outlet 23 make it possible to create a flow of pulsed air 13 which circulates at the face 24 of the module 1 while being in contact with the cooling means 12b of the electrical connection device 5b, which it results in the cooling of the positive 3 and negative 4 terminals of the cells 2.

Il est en outre possible de prévoir deux cloisons d'orientation 25 du flux d'air 13 s'étendant longitudinalement sur la face intérieure de la paroi principale longitudinale 26 du capot 21 du boîtier de protection 20 de la batterie. Ces cloisons d'orientation 25 du flux d'air 13 permettent de diriger et de confiner le flux d'air puisé 13 sur les moyens de refroidissement 12b afin d'assurer un échange thermique optimum entre ces moyens de refroidissement 12b et le flux d'air 13.  It is also possible to provide two orientation partitions 25 of the air flow 13 extending longitudinally on the inner face of the longitudinal main wall 26 of the cover 21 of the battery protection housing 20. These orientation partitions 25 of the air flow 13 make it possible to direct and confine the flow of pulsed air 13 to the cooling means 12b in order to ensure optimum heat exchange between these cooling means 12b and the flow of air. air 13.

La géométrie des moyens de refroidissement 12, 12a, 12b sous forme de tiges, d'ailettes plates ou non, est évaluée et choisie selon la puissance de refroidissement nécessaire. Bien entendu, l'inhomogénéité des moyens de refroidissement 12, 12a, 12b , tant dans leur forme que dans leur taille, favorise le refroidissement par contact avec le flux de circulation d'air 13.  The geometry of the cooling means 12, 12a, 12b in the form of rods, flat fins or not, is evaluated and selected according to the cooling power required. Of course, the inhomogeneity of the cooling means 12, 12a, 12b, both in their shape and in their size, promotes cooling by contact with the air flow 13.

Il peut être prévu que tous les dispositifs de liaison électrique 5, 5a, 5b du module 1 soient identiques, ou que les dispositifs de liaison électrique 5, 5a, 5b soient différents selon la position des cellules 2 associées et leur besoin plus ou moins important d'être refroidies.  It can be provided that all the electrical connection devices 5, 5a, 5b of the module 1 are identical, or that the electrical connection devices 5, 5a, 5b are different according to the position of the associated cells 2 and their more or less important need to be cooled.

On pourra par ailleurs prévoir que les dispositifs de liaison électrique 5, 5a, 5b soient solidarisés entre eux au moyen d'un matériau isolant de type résine époxy ou par surmoulage plastique, de sorte que tous les dispositifs de liaison électrique 5, 5a, 5b ne forment qu'une seule pièce à disposer sur la face du module 1 avant que ce dernier ne soit placé dans le boîtier de protection 20.  It will also be possible for the electrical connection devices 5, 5a, 5b to be interconnected by means of an epoxy resin insulating material or by plastic overmolding, so that all the electrical connection devices 5, 5a, 5b form a single piece to be disposed on the face of the module 1 before it is placed in the protective housing 20.

Selon la variante d'exécution représentée sur la figure 12, les moyens de refroidissement 12c peuvent être des écrous 9, 10 de fixation des dispositifs de liaison électrique 5d avec les bornes positive et négative des cellules non visibles sur cette figure. Ces écrous 9, 10, après serrage, font saillie depuis le dispositif de liaison électrique associé 5d, du côté opposé à celui du dispositif de liaison électrique 5d se trouvant en contact avec la face du module de batterie 1 sur laquelle le dispositif de liaison électrique 5d est disposé. According to the variant embodiment shown in FIG. 12, the cooling means 12c may be nuts 9, 10 for fastening the electrical connection devices 5d with the positive and negative terminals of the cells that are not visible in this figure. These nuts 9, 10, after tightening, protrude from the associated electrical connection device 5d, the opposite side to that of the connecting device 5d electrical being in contact with the face of the battery module 1 on which the electrical connection device 5d is disposed.

Selon une variante de réalisation, l'écrou formant moyen de refroidissement 12c comprend des évidements latéraux 28 permettant d'augmenter la surface de contact entre le flux d'air puisé et l'écrou 12c.  According to an alternative embodiment, the nut forming the cooling means 12c comprises lateral recesses 28 for increasing the contact surface between the pulsed air flow and the nut 12c.

Tel que cela est représenté sur la figure 12, dans cette configuration, une première paroi latérale du capot 21 comprend deux entrées d'air 29a, 29b, et la paroi latérale opposée comprend deux sorties d'air puisé 30a, 30b. Les entrées d'air 29a, 29b et les sorties d'air 30a, 30b sont situées respectivement sensiblement dans l'axe longitudinal des rangées des écrous 9, 10 et sont confondues sur la figure 12 en raison de leur alignement axial.  As shown in FIG. 12, in this configuration, a first side wall of the hood 21 comprises two air inlets 29a, 29b, and the opposite side wall comprises two pulsed air outlets 30a, 30b. The air inlets 29a, 29b and the air outlets 30a, 30b are located respectively substantially in the longitudinal axis of the rows of the nuts 9, 10 and are merged in FIG. 12 because of their axial alignment.

Ces entrées 29a, 29b et sorties 30a, 30b d'air génèrent deux flux d'air puisé 31 a, 31 b qui lorsqu'ils circulent se trouvent au contact des écrous 12c formant moyens de refroidissement. Une cloison d'orientation du flux d'air 32a, 32b s'étendant longitudinalement sur la face intérieure de la paroi principale longitudinale 26 du capot 21 du boîtier de protection 20 de la batterie, est ménagée à proximité de chaque entrée d'air 29a, 29b de façon à confiner le flux d'air puisé résultant 31 au niveau des moyens de refroidissement 12c.  These air inlets 29a, 29b and 30a, 30b generate two pulsed air streams 31a, 31b which when they circulate are in contact with the nuts 12c forming cooling means. An airflow orientation partition 32a, 32b extending longitudinally on the inner face of the longitudinal main wall 26 of the cover 21 of the battery protection housing 20, is formed near each air inlet 29a. , 29b so as to confine the resulting pulsed air flow 31 at the cooling means 12c.

Le dispositif de liaison électrique 5d représenté sur la figure 12 comprend comme unique moyen de refroidissement 12c les écrous 9,10 de fixation des bornes positive 3 et négative 4 aux dispositifs de liaison électrique 5d. Mais il peut être avantageusement prévu que les dispositifs de liaison électrique 5 comprennent en outre des moyens de refroidissement 12, 12a, 12b tels que ceux décrits en référence aux figures 4 à 9. Dans ce cas, des entrées et sorties d'air puisé seront ménagées en conséquence afin de générer des flux de circulation d'air en contact avec tous les moyens de refroidissement 12, 12a, 12b, 12c.  The electrical connection device 5d shown in FIG. 12 comprises, as sole cooling means 12c, the nuts 9, 10 for fixing the positive 3 and negative 4 terminals to the electrical connection devices 5d. But it can be advantageously provided that the electrical connection devices 5 further comprise cooling means 12, 12a, 12b such as those described with reference to Figures 4 to 9. In this case, pulsed air inlets and outlets will be arranged accordingly to generate air flow streams in contact with all cooling means 12, 12a, 12b, 12c.

L'utilisation des écrous 9, 10 comprenant des évidements latéraux 28 pour former des moyens de refroidissement 12c est notamment avantageuse lorsque l'empilement des cellules 2 est tel que les bornes positive 3 et négative 4 des cellules 2 de l'empilement sont alternativement disposées d'un côté et de l'autre du module 1 (Figure 2).  The use of the nuts 9, 10 comprising lateral recesses 28 to form cooling means 12c is particularly advantageous when the stack of the cells 2 is such that the positive 3 and negative 4 terminals of the cells 2 of the stack are alternately arranged on one side and the other of the module 1 (Figure 2).

Tel que cela est représenté sur cette figure 2, dans cette configuration, les dispositifs de liaison électrique 5d reliant une borne positive 3 ou négative 4 à la borne opposée négative 4 ou positive 3 de la cellule adjacente 2 sont de courte longueur et ne s'étendent pas sur la largeur du module contrairement aux dispositifs de liaison électrique 5, 5a, 5b conçus pour les empilement simples (Figure 1 ). As shown in this FIG. 2, in this configuration, the electrical connection devices 5d connecting a positive 3 or negative 4 terminal to the Negative 4 or positive 3 opposite terminal of the adjacent cell 2 are of short length and do not extend across the width of the module unlike the electrical connection devices 5, 5a, 5b designed for single stacking (Figure 1).

La présence des écrous formant moyens de refroidissement 12c permet ainsi de pouvoir disposer de moyens de refroidissement lorsque les cellules 2 sont empilées de telle façon que les bornes positives 3 et négatives 4 disposées d'un même côté soient alternées.  The presence of the nuts forming cooling means 12c thus makes it possible to have cooling means available when the cells 2 are stacked in such a way that the positive 3 and negative 4 terminals arranged on one and the same side are alternated.

Le dispositif de liaison électrique 5, 5a, 5b, 5d de l'invention à partir duquel s'étendent les moyens de refroidissement 12, 12a, 12b, 12c, qu'ils soient directement solidarisés avec le dispositif de liaison électrique 5, 5a, 5b comme cela est le cas pour les configurations des figures 4 à 9, ou qu'ils soient des écrous de fixation du dispositif de liaison électrique 5d avec les bornes positive 3 et négative 4 des cellules 2, permet d'assurer une double fonction de liaison électrique et de refroidissement, cette dernière fonction étant mise en œuvre par la circulation du ou des flux d'air puisé dans la batterie.  The electrical connection device 5, 5a, 5b, 5d of the invention from which the cooling means 12, 12a, 12b, 12c extend, that they are directly secured to the electrical connection device 5, 5a, 5b as is the case for the configurations of FIGS. 4 to 9, or that they are fixing nuts of the electrical connection device 5d with the positive 3 and negative 4 terminals of the cells 2, makes it possible to ensure a dual function of electrical connection and cooling, the latter function being implemented by the circulation of the air stream or pulsed into the battery.

Claims

REVENDICATIONS 1 . Module de batterie (1 ) pour véhicule électrique ou hybride comprenant au moins deux cellules électrochimiques (2) comprenant chacune au moins une borne positive (3) et au moins une borne négative (4) faisant saillie depuis l'une des faces de la cellule (2), 1. Battery module (1) for an electric or hybrid vehicle comprising at least two electrochemical cells (2) each comprising at least one positive terminal (3) and at least one negative terminal (4) projecting from one of the faces of the cell (2) caractérisé en ce que lesdites bornes (3, 4) des cellules (2) sont connectées électriquement au moyen d'au moins un dispositif de liaison électrique (5, 5a, 5b, 5d) disposé sur les faces des cellules (2) depuis lesquelles lesdites bornes (3, 4) font saillie, chaque dispositif de liaison électrique (5, 5a, 5b, 5d) comprend un premier moyen de liaison (7, 8) à une borne (3, 4) d'une cellule (2) et un second moyen de liaison (7, 8) à une borne (3, 4) d'une autre cellule (2), et chaque dispositif de liaison électrique (5, 5a, 5b, 5d) comprend des moyens de refroidissement (12, 12a, 12b, 12c) aptes à refroidir lesdites cellules (2). characterized in that said terminals (3, 4) of the cells (2) are electrically connected by means of at least one electrical connection device (5, 5a, 5b, 5d) disposed on the faces of the cells (2) from which said terminals (3, 4) protrude, each electrical connection device (5, 5a, 5b, 5d) comprises a first connecting means (7, 8) to a terminal (3, 4) of a cell (2) and a second connecting means (7, 8) to a terminal (3, 4) of another cell (2), and each electrical connecting device (5, 5a, 5b, 5d) comprises cooling means (12). , 12a, 12b, 12c) suitable for cooling said cells (2). 2. Module de batterie (1 ) selon la revendication 1 , caractérisé en ce que chaque moyen de refroidissement (12, 12a, 12b, 12c) est disposé sur la face du dispositif de liaison électrique (5, 5a, 5b, 5d) opposée à celle qui est au contact avec les cellules (2) sur lesquelles le dispositif de liaison électrique (5, 5a, 5b, 5d) est disposé. 2. Battery module (1) according to claim 1, characterized in that each cooling means (12, 12a, 12b, 12c) is disposed on the face of the electrical connection device (5, 5a, 5b, 5d) opposite to that in contact with the cells (2) on which the electrical connection device (5, 5a, 5b, 5d) is arranged. 3. Module de batterie (1 ) selon l'une des revendications 1 et 2, caractérisé en ce que le dispositif de liaison électrique (5, 5a, 5b, 5d) assure la connexion électrique de deux cellules adjacentes (2). 3. Battery module (1) according to one of claims 1 and 2, characterized in that the electrical connection device (5, 5a, 5b, 5d) provides the electrical connection of two adjacent cells (2). 4. Module de batterie (1 ) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif de liaison électrique (5, 5a, 5b, 5d) comprend une plaque électriquement conductrice (6) comprenant au moins deux orifices (7, 8) aptes à permettre respectivement le passage d'une borne (3, 4) d'une cellule (2) et d'une borne (3, 4) d'une autre cellule (2), ces deux orifices (7, 8) définissant le premier et le second moyen de liaison (7, 8). 4. Battery module (1) according to any one of claims 1 to 3, characterized in that the electrical connection device (5, 5a, 5b, 5d) comprises an electrically conductive plate (6) comprising at least two orifices (7, 8) adapted respectively to allow the passage of a terminal (3, 4) of a cell (2) and a terminal (3, 4) of another cell (2), these two orifices ( 7, 8) defining the first and the second connecting means (7, 8). 5. Module de batterie (1 ) selon la revendication 4, caractérisé en ce que les deux orifices (7, 8) ont un diamètre différent. 5. Battery module (1) according to claim 4, characterized in that the two orifices (7, 8) have a different diameter. 6. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de liaison électrique (5, 5a, 5b, 5d) comprend au moins deux moyens de fixation (9, 10) permettant de solidariser le dispositif de liaison électrique (5, 5a, 5b, 5d) auxdites bornes desdites cellules (2). 6. Battery module (1) according to any one of the preceding claims, characterized in that the electrical connection device (5, 5a, 5b, 5d) comprises at least two fastening means (9, 10) for securing the electrical connection device (5, 5a, 5b, 5d) at said terminals of said cells (2). 7. Module de batterie (1 ) selon la revendication 6, caractérisé en ce que lesdits moyens de fixation (9, 10) sont des écrous dans lesquels s'engagent lesdites bornes. 7. Battery module (1) according to claim 6, characterized in that said fixing means (9, 10) are nuts in which said terminals engage. 8. Module de batterie (1 ) selon la revendication 7, caractérisé en ce qu'au moins un des écrous (9, 10) comprend au moins un évidement latéral (28), cet écrou (9, 10) formant un moyen de refroidissement (12). 8. Battery module (1) according to claim 7, characterized in that at least one of the nuts (9, 10) comprises at least one lateral recess (28), this nut (9, 10) forming a cooling means (12). 9. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que le module de batterie (1 ) comprend au moins deux dispositifs de liaison électrique (5, 5a, 5b, 5d) et lesdits dispositifs de liaison électrique (5, 5a, 5b, 5d) sont solidarisés entre eux au moyen d'un matériau isolant. Battery module (1) according to any one of the preceding claims, characterized in that the battery module (1) comprises at least two electrical connection devices (5, 5a, 5b, 5d) and said connection devices electrical (5, 5a, 5b, 5d) are secured to each other by means of an insulating material. 10. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que la forme et/ou le nombre et/ou la disposition des moyens de refroidissement (12, 12a, 12b, 12c) d'un dispositif de liaison électrique (5, 5a, 5b, 5d) ou de plusieurs dispositifs de liaison électrique distincts (5, 5a, 5b, 5d) diffèrent selon la position dans le module (1 ) des cellules (2) sur lequel le ou les dispositif(s) de liaison électrique (5, 5a, 5b, 5d) est (sont) disposé(s). 10. Battery module (1) according to any one of the preceding claims, characterized in that the shape and / or the number and / or the arrangement of the cooling means (12, 12a, 12b, 12c) of a device electrical connection (5, 5a, 5b, 5d) or a plurality of separate electrical connection devices (5, 5a, 5b, 5d) differ depending on the position in the module (1) of the cells (2) on which the device or device (s) electrical connection (5, 5a, 5b, 5d) is (are) arranged (s). 1 1 . Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de refroidissement (12, 12a, 12b) sont disposés entre les deux moyens de liaison (7, 8) dudit dispositif de liaison électrique associé (5, 5a, 5b). 1 1. Battery module (1) according to any one of the preceding claims, characterized in that said cooling means (12, 12a, 12b) are arranged between the two connecting means (7, 8) of said associated electrical connection device ( 5, 5a, 5b). 12. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de refroidissement (12, 12a, 12b) sont au moins une tige et/ou au moins une ailette. 12. Battery module (1) according to any one of the preceding claims, characterized in that said cooling means (12, 12a, 12b) are at least one rod and / or at least one fin. 13. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que lesdits moyens de refroidissement (12a) sont des protubérances, des ailettes ou des tiges (15a1 , 15a2, 15a3) de différentes hauteurs et/ou diamètres. 13. Battery module (1) according to any one of the preceding claims, characterized in that said cooling means (12a) are protuberances, fins or rods (15a1, 15a2, 15a3) of different heights and / or diameters. 14. Module de batterie (1 ) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de refroidissement (12) sont au moins une protubérance et au moins une ailette (16) ou au moins une tige centrale (15) et au moins une ailette (16). 14. Battery module (1) according to any one of the preceding claims, characterized in that the cooling means (12) are at least one protuberance and at least one fin (16) or at least one central rod (15) and at least one fin (16). 15. Batterie pour véhicule électrique ou hybride comprenant au moins un module de batterie (1 ) selon l'une quelconque des revendications précédentes. 15. Battery for electric or hybrid vehicle comprising at least one battery module (1) according to any one of the preceding claims. 16. Batterie pour véhicule électrique ou hybride comprenant au moins un module de batterie (1 ) selon l'une quelconque des revendications 1 à 14 disposé dans un boîtier de protection (20) comprenant un capot (21 ), 16. Battery for electric or hybrid vehicle comprising at least one battery module (1) according to any one of claims 1 to 14 disposed in a protective housing (20) comprising a cover (21), caractérisée en ce qu'elle comprend au moins une entrée d'air (22 ; 29a, 29b) et au moins une sortie d'air (23 ; 30a, 30b) ménagées au niveau du capot (21 ) afin de former un flux de circulation d'air (13 ; 31 a, 31 b) au niveau de la face du module de batterie (1 ) qui comprend lesdites bornes (3, 4) des cellules (2), l'entrée d'air (22 ; 29a, 29b), la sortie d'air (23 ; 30a, 30b) et lesdits moyens de refroidissement (12, 12a, 12b, 12c) étant disposés de manière à ce que ledit flux d'air (13 ; 31 a, 31 b) soit dirigé vers les moyens de refroidissement (12, 12a, 12b, 12c). characterized in that it comprises at least one air inlet (22; 29a, 29b) and at least one air outlet (23; 30a, 30b) provided at the hood (21) to form a flow of air. air circulation (13; 31a, 31b) at the face of the battery module (1) which comprises said terminals (3, 4) of the cells (2), the air inlet (22; 29a); , 29b), the air outlet (23; 30a, 30b) and said cooling means (12, 12a, 12b, 12c) being arranged in such a manner that said air flow (13; 31a, 31b) ) is directed to the cooling means (12, 12a, 12b, 12c).
PCT/EP2014/068320 2013-09-24 2014-08-28 Battery module for an electric or hybrid vehicle to ensure the cooling of the cells, and associated battery Ceased WO2015043869A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1359139A FR3011129B1 (en) 2013-09-24 2013-09-24 BATTERY MODULE FOR ELECTRIC OR HYBRID VEHICLE TO ENSURE CELL COOLING, AND ASSOCIATED BATTERY
FR1359139 2013-09-24

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WO2015043869A1 true WO2015043869A1 (en) 2015-04-02

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10483510B2 (en) 2017-05-16 2019-11-19 Shape Corp. Polarized battery tray for a vehicle
US10632857B2 (en) 2016-08-17 2020-04-28 Shape Corp. Battery support and protection structure for a vehicle
US10661646B2 (en) 2017-10-04 2020-05-26 Shape Corp. Battery tray floor assembly for electric vehicles
US10886513B2 (en) 2017-05-16 2021-01-05 Shape Corp. Vehicle battery tray having tub-based integration
US11088412B2 (en) 2017-09-13 2021-08-10 Shape Corp. Vehicle battery tray with tubular peripheral wall
WO2021196796A1 (en) * 2020-04-03 2021-10-07 宁德时代新能源科技股份有限公司 Battery module, battery pack, and apparatus using secondary battery
US11155150B2 (en) 2018-03-01 2021-10-26 Shape Corp. Cooling system integrated with vehicle battery tray
US11211656B2 (en) 2017-05-16 2021-12-28 Shape Corp. Vehicle battery tray with integrated battery retention and support feature
US11214137B2 (en) 2017-01-04 2022-01-04 Shape Corp. Vehicle battery tray structure with nodal modularity
DE102021202709A1 (en) 2021-03-19 2022-09-22 Volkswagen Aktiengesellschaft Battery module and method for manufacturing a battery module
US11688910B2 (en) 2018-03-15 2023-06-27 Shape Corp. Vehicle battery tray having tub-based component
US12347879B2 (en) 2017-09-13 2025-07-01 Shape Corp. Vehicle battery tray with tubular peripheral wall

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499419A (en) * 1966-09-15 1967-10-27 Improvements to electric accumulators
JP2002319388A (en) * 2001-04-19 2002-10-31 Toyota Motor Corp Batteries, assembled batteries and terminals
JP2003163036A (en) * 2001-11-27 2003-06-06 Denso Corp Battery
JP2005071674A (en) * 2003-08-20 2005-03-17 Denso Corp Assembled battery
US20090226800A1 (en) * 2008-03-05 2009-09-10 Denso Corporation Battery unit for vehicles
JP2009252652A (en) * 2008-04-09 2009-10-29 Denso Corp Battery pack
JP2013105674A (en) * 2011-11-15 2013-05-30 Hitachi Vehicle Energy Ltd Battery pack

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1499419A (en) * 1966-09-15 1967-10-27 Improvements to electric accumulators
JP2002319388A (en) * 2001-04-19 2002-10-31 Toyota Motor Corp Batteries, assembled batteries and terminals
JP2003163036A (en) * 2001-11-27 2003-06-06 Denso Corp Battery
JP2005071674A (en) * 2003-08-20 2005-03-17 Denso Corp Assembled battery
US20090226800A1 (en) * 2008-03-05 2009-09-10 Denso Corporation Battery unit for vehicles
JP2009252652A (en) * 2008-04-09 2009-10-29 Denso Corp Battery pack
JP2013105674A (en) * 2011-11-15 2013-05-30 Hitachi Vehicle Energy Ltd Battery pack

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11273697B2 (en) 2016-08-17 2022-03-15 Shape Corp. Battery support and protection structure for a vehicle
US10632857B2 (en) 2016-08-17 2020-04-28 Shape Corp. Battery support and protection structure for a vehicle
US11660950B2 (en) 2016-08-17 2023-05-30 Shape Corp. Battery support and protection structure for a vehicle
US11214137B2 (en) 2017-01-04 2022-01-04 Shape Corp. Vehicle battery tray structure with nodal modularity
US10886513B2 (en) 2017-05-16 2021-01-05 Shape Corp. Vehicle battery tray having tub-based integration
US10483510B2 (en) 2017-05-16 2019-11-19 Shape Corp. Polarized battery tray for a vehicle
US11691493B2 (en) 2017-05-16 2023-07-04 Shape Corp. Vehicle battery tray having tub-based component
US11211656B2 (en) 2017-05-16 2021-12-28 Shape Corp. Vehicle battery tray with integrated battery retention and support feature
US12347879B2 (en) 2017-09-13 2025-07-01 Shape Corp. Vehicle battery tray with tubular peripheral wall
US11088412B2 (en) 2017-09-13 2021-08-10 Shape Corp. Vehicle battery tray with tubular peripheral wall
US10960748B2 (en) 2017-10-04 2021-03-30 Shape Corp. Battery tray floor assembly for electric vehicles
US11267327B2 (en) 2017-10-04 2022-03-08 Shape Corp. Battery tray floor assembly for electric vehicles
US11787278B2 (en) 2017-10-04 2023-10-17 Shape Corp. Battery tray floor assembly for electric vehicles
US10661646B2 (en) 2017-10-04 2020-05-26 Shape Corp. Battery tray floor assembly for electric vehicles
US11155150B2 (en) 2018-03-01 2021-10-26 Shape Corp. Cooling system integrated with vehicle battery tray
US11688910B2 (en) 2018-03-15 2023-06-27 Shape Corp. Vehicle battery tray having tub-based component
WO2021196796A1 (en) * 2020-04-03 2021-10-07 宁德时代新能源科技股份有限公司 Battery module, battery pack, and apparatus using secondary battery
US12334591B2 (en) 2020-04-03 2025-06-17 Contemporary Amperex Technology (Hong Kong) Limited Battery module, battery pack, and device using secondary battery
DE102021202709A1 (en) 2021-03-19 2022-09-22 Volkswagen Aktiengesellschaft Battery module and method for manufacturing a battery module

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