Classifications

• • 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
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/04—Construction or manufacture in general
  • H01M10/0468—Compression means for stacks of electrodes and separators
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/61—Types of temperature control
  • H01M10/613—Cooling or keeping cold
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/62—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
  • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
  • H01M10/647—Prismatic or flat cells, e.g. pouch cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/655—Solid structures for heat exchange or heat conduction
  • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
  • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/60—Heating or cooling; Temperature control
  • H01M10/65—Means for temperature control structurally associated with the cells
  • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
  • H01M10/6561—Gases
  • H01M10/6563—Gases with forced flow, e.g. by blowers
  • H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
• • 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
  • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
  • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
  • H01M50/227—Organic material
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• • 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
  • H01M50/256—Carrying devices, e.g. belts
• • 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
• • 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
  • H01M50/289—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
  • H01M50/20—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
  • H01M50/293—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 the material
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M2220/00—Batteries for particular applications
  • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries

Definitions

• the battery cells In order to allow optimum operation, the battery cells must be temperature regulated.
• the battery cells are arranged with a gap between them, which is maintained by spacers.
• These spacers have a mounting portion designed to receive a battery and a wall in the form of a separator blade.
• the spacer thanks to this separating blade, makes it possible to form an air flow path between two battery cells.
• the subject of the invention is a battery assembly for a motor vehicle, comprising:
• the second axial stop is slidably mounted parallel to the X axis on the base body.
• the mounting and positioning of the second axial stop is carried out simply.
• the base body comprises a translation guide rail, the mounting feet being slidably mounted on the translation guide rail.
• the second axial compression member is retained axially directly on the first axial stop.
• the axial compression effect is obtained in a particularly simple manner, and the rigidity of the assembly is improved.
• the first axial thrust bearing is formed in one piece with the basic body.
• Each spacer comprises a thermal regulation fluid passage, disposed in the splitter blade at the end opposite the mounting foot, and allowing the passage of thermal regulation fluid between the first pass and the second pass.
• the thermal control fluid passage is a thermal control fluid passage hole.
• the baffle comprises a longitudinal portion extending parallel to the axis X.
• a longitudinal portion not only makes it possible to guarantee the sliding of the spacers between them, but also to ensure that the clearance created between the mounting feet during of the assembly with the battery cells does not increase the minimum passage section of the baffle, through which the thermal regulation fluid passes, beyond a threshold predefined by the longitudinal portion. Therefore, leakage of thermal control fluid out of the desired flow path between the first pass and the second pass is limited.
• the thermal control fluid circulates along a flow path passing through a fan, a heat exchanger, the first pass, and the second pass.
• the flow path is optimized.
• the subject of the invention is a motor vehicle comprising a system as defined above.
• Figure 2 is a perspective view of part of the battery assembly according to a first variant of the embodiment shown in Figure 1;
• Figure 3 is a perspective view of part of the battery assembly according to the first variant of the embodiment shown in Figure 1;
• Figure 5 is a perspective view of part of the battery assembly according to the first variant of the embodiment shown in Figure 1;
• Figure 6 is a view similar to the view shown in Figure 5 showing an alternative embodiment of the sliding mounting of the mounting feet on the guide rail in translation;
• Figure 7 is a right view of part of the battery assembly according to the first variant of the embodiment shown in Figure 1;
• FIG. 1 schematically represents a system 1 comprising a battery assembly 3 for a motor vehicle and a box 5.
• the system 1 is thus configured to be mounted in a motor vehicle (not shown).
• the battery assembly 3 comprises a row of battery cells 11 arranged parallel to each other and aligned along a longitudinal axis X.
• the battery cells 11 being arranged at a distance from each other such that the adjacent battery cells 11 delimit between them a gap 13 for the passage of thermal regulation fluid F of the battery cells 11, as represented in FIG.
• FIG. 2 only part of the battery cells 11 are shown to facilitate understanding of the structure of the battery assembly 3.
• the battery assembly 3 also comprises a holding device 15, represented in particular in FIG. 3, comprising a base body 17, a plurality of spacers 19 and retaining means 21. It should be understood that in a battery assembly 3 to the assembled state, each spacer 19 is arranged between two battery cells 11. Thus, in this example, the battery assembly 3 comprises twelve battery cells 11. However, this number is variable depending on the arrangement of the battery cells 11 and their electrical configuration in series and/or in parallel.
• the battery assembly 3 is configured to deliver an output voltage, which in this example is 48V.
• the base body 17 is made of plastic material, preferably of thermoplastic material, more preferably of polypropylene.
• the base body 17 also comprises at least one passage hole 17p for thermal regulation fluid F, which is surmounted by a fan 7.
• the base body comprises six passage holes 17p, the fan 7 comprising a sub -Axial ventilation assembly for each passage hole 17p, and thus comprising six axial ventilation sub-assemblies.
• the spacers 19 are made of plastic material, preferably of thermoplastic material, more preferably of polypropylene or thermoplastic polyurethane.
• Each spacer 19 comprises a mounting foot 23 and a splitter blade 25 formed in one piece with the mounting foot 23, the splitter blade 25 being disposed in the gap 13 located between two adjacent battery cells 11 and configured to separate a first pass P1 of thermal regulation fluid F and a second pass P2 of thermal regulation fluid F.
• the thermal regulation fluid F circulates, in a closed circuit, along a flow path passing through the fan 7, the heat exchanger 9, the first pass P1, and the second pass P2.
• Each spacer 19 also comprises a passage for thermal regulation fluid F, in this example a passage hole 26 for thermal regulation fluid F, arranged in the separating blade 25 at the end opposite the mounting foot 23, and allowing the passage of thermal regulation fluid F between the first pass P1 and the second pass P2.
• a passage for thermal regulation fluid F in this example a passage hole 26 for thermal regulation fluid F, arranged in the separating blade 25 at the end opposite the mounting foot 23, and allowing the passage of thermal regulation fluid F between the first pass P1 and the second pass P2.
• the mounting feet 23 are slidably mounted parallel to the X axis on the base body 17 in at least one row and thus define a sliding connection between them. More specifically in this example and as shown in Figure 5, the base body 17 includes a translation guide rail 27, the mounting feet 23 being slidably mounted on the translation guide rail 27.
• the assembly sliding mounting feet 23 on the translation guide rail 27 is achieved by threading along a direction parallel to the axis X of the mounting feet 23 on the translation guide rail 27.
• the sliding mounting of the mounting feet 23 on the translation guide rail 27 is achieved by straddling in a direction perpendicular to the axis X of the mounting feet 23 on the translation guide rail 27.
• each spacer 19 further comprises a head 29 formed in one piece with the separating blade 25, the head 29 being opposite the mounting foot 23.
• the head 29 has a guide hole 30 oriented parallel to the X axis.
• the retaining means 21 comprise a first axial abutment 31 disposed at a first axial end of the row of battery cells 11 and a second axial abutment 32 disposed at the second axial end of the row of battery cells 11.
• the first axial stop 31 is formed in one piece with the base body 17, and is in the form of a blade arranged parallel to the spacers 19.
• the retaining means 21 also comprise axial clamping means 33, which compress the second axial abutment 32 axially against the battery cell 11 located at the second axial end of the row of battery cells 11, the second axial abutment 32 thus compressing the row of battery cells 11 and the separator blades 25 disposed between them against the first axial abutment 31, the mounting feet 23 comprising an axial clearance j between them such that the row of battery cells 11 and the separator blades 25 arranged between them are held tightly fixed.
• the second axial stop 32 and the spacers 19 are identical.
• the second axial stop 32 is slidably mounted parallel to the axis X on the base body 17, and the second axial stop 32 comprises a mounting foot 23 slidably mounted on the translation guide rail 27.
• the mounting feet 23 comprise, at their axial ends forming axial clearance j between them, a complementary shape forming a baffle 35 between them for the thermal regulation fluid F.
• the baffle 35 comprises a longitudinal portion 37 s extending parallel to the axis X.
• the longitudinal portion 37 thus delimits a thermal regulation fluid passage section F, which is predefined and is not affected by the relative sliding of the spacers 19 between them.
• the axial clamping means 33 comprise a first axial compression member 41, which is fixed to the base body 17 and compresses the second axial stop 32 against the battery cell 11 located at the second axial end of the row of battery cells. 11.
• the first axial compression member 41 rests against the mounting foot 23 of the second axial stop 32. More specifically in this example, as shown in Figure 5, the first axial compression member 41 is formed by a screw 41a comprising a washer 41b resting against the mounting foot 23 of the second axial stop 32.
• the axial clamping means 33 also comprise a second axial compression member 42, which compresses the second axial abutment 32 against the battery cell 11 located at the second axial end of the row of battery cells 11, the second axial compression member 42 and each spacer 19 being interconnected such that their connection is free in translation parallel to the axis X. More precisely in this example, the head 29 of each spacer 19 is in connection with the second axial compression member 42, the second axial compression member 42 passing through the guide hole 30 of each spacer 19.
• the second axial compression member 42 comprises an axial retaining element 43 on the wall of the battery cell 11 facing the first axial stop 31.
• the second axial compression member is retained axially directly on the first e axial stop.
• the second axial compression member is a threaded rod.
• the first axial stop 31 ' differs from the first axial stop 31 according to the first variant in that it comprises a thermal regulation fluid passage F, in this example a passage 26' of thermal regulation fluid F, arranged in the first axial stop 31' at its end opposite to the end connected to the base body 17, and allowing the passage of thermal regulation fluid F between the first pass P1 and the second pass P2.
• a thermal regulation fluid passage F in this example a passage 26' of thermal regulation fluid F, arranged in the first axial stop 31' at its end opposite to the end connected to the base body 17, and allowing the passage of thermal regulation fluid F between the first pass P1 and the second pass P2.

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

Applications Claiming Priority (2)

Publications (1)

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Family Cites Families (12)

• 2021
  • 2021-09-02 LU LU500615A patent/LU500615B1/fr active IP Right Grant
• 2022
  • 2022-09-02 JP JP2024514362A patent/JP7783977B2/ja active Active
  • 2022-09-02 EP EP22768859.5A patent/EP4396888A2/de active Pending
  • 2022-09-02 CA CA3225096A patent/CA3225096C/fr active Active
  • 2022-09-02 WO PCT/EP2022/074506 patent/WO2023031425A2/fr not_active Ceased
  • 2022-09-02 CN CN202280059388.5A patent/CN118140344A/zh active Pending
  • 2022-09-02 KR KR1020247009210A patent/KR102731219B1/ko active Active
  • 2022-09-02 US US18/687,715 patent/US12170380B2/en active Active

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