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WO2013161655A1 - Dispositif d'alimentation électrique, véhicule comprenant celui-ci, et dispositif de stockage d'électricité - Google Patents

Dispositif d'alimentation électrique, véhicule comprenant celui-ci, et dispositif de stockage d'électricité Download PDF

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Publication number
WO2013161655A1
WO2013161655A1 PCT/JP2013/061457 JP2013061457W WO2013161655A1 WO 2013161655 A1 WO2013161655 A1 WO 2013161655A1 JP 2013061457 W JP2013061457 W JP 2013061457W WO 2013161655 A1 WO2013161655 A1 WO 2013161655A1
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WO
WIPO (PCT)
Prior art keywords
duct
gas
power supply
supply device
battery
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/JP2013/061457
Other languages
English (en)
Japanese (ja)
Inventor
一広 藤井
智一 高品
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of WO2013161655A1 publication Critical patent/WO2013161655A1/fr
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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—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
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a power supply device in which a plurality of batteries are connected, and a vehicle and a power storage device including the power supply device, and more particularly, a motor that is mounted on an electric vehicle such as a hybrid vehicle, a fuel cell vehicle, an electric vehicle, and an electric motorcycle.
  • the present invention relates to a power supply apparatus that supplies power to a power supply for large currents used for power storage applications for home use, factories, etc., a vehicle including the power supply apparatus, and a power storage apparatus.
  • a power supply device including a plurality of battery cells is used for a power supply device for a vehicle such as a hybrid vehicle or an electric vehicle, or for a power storage system for a factory or a home.
  • the battery cell is provided with a gas discharge valve by opening a gas discharge port so that the internal gas can be discharged to the outside when the internal pressure rises at a high temperature or the like.
  • a battery cell having such a gas discharge port needs to guide and discharge the discharged gas safely.
  • a power supply device equipped with a mechanism for safely guiding and discharging gas
  • it is equipped with a gas duct that communicates with the gas discharge port, and in order to prevent gas leakage at the connecting part of the gas duct and gas discharge port, it is sealed with a sealing member
  • a power supply device that is sealed in the manner described above.
  • gas ducts are also required to be thinner and lighter.
  • the gas duct is made of resin to reduce the weight.
  • the gas duct can be made of metal as the material constituting the gas duct, the durability of the gas duct can be improved.
  • the gas duct becomes expensive and the weight is increased.
  • a main object of the present invention is to provide a power supply device, a vehicle including the power source device, and a power storage device that can suppress a reduction in resistance during gas discharge while reducing the thickness of a gas duct.
  • a plurality of battery cells 1 provided with gas discharge ports 12 having gas discharge valves 11 on the first end surfaces 10 and 60.
  • 51 a battery stack 2 formed by stacking the plurality of battery cells 1, 51, and fixed to one surface of the battery stack 2 so as to be connected to the gas discharge ports 12 of the battery cells 1, 51.
  • Gas ducts 6, 56, and 76, and a metal layer 17 is provided on the inner surface of the gas ducts 6, 56, and 76 and on the surface facing the gas outlet 12.
  • the temperature rise in the case where the metal layer is provided on the inner surface of the gas duct opposite to the gas discharge port (the power supply device of the present invention) is the same part and the metal layer is not provided (conventional method).
  • the maximum temperature was lowered by about 40 degrees, and it was proved that an extremely excellent temperature reduction effect was obtained.
  • connection openings 6b, 56b which are connected to the gas discharge port 12, at positions where the gas ducts 6, 56, 76 are opposed to the gas discharge port 12.
  • 76b is provided, and the metal layer 17 can be fixed to the inner surface of the gas ducts 6, 56, and 76 that faces the surface provided with the connection openings 6b, 56b, and 76b.
  • the first duct in which the gas ducts 6, 56, 76 are divided in a direction perpendicular to the first end faces 10, 60 of the battery cells 1, 51. 6A, 56A, 76A and second ducts 6B, 56B, 76B, and connecting the first ducts 6A, 56A, 76A and the second ducts 6B, 56B, 76B to discharge columnar gas inside A path 46 is formed, and the first ducts 6A, 56A, and 76A have groove-shaped recesses 6d, 56d, and 76d on the inner side, and the metal layer 17 is placed on the bottom surfaces of the groove-shaped recesses 6d, 56d, and 76d.
  • the second ducts 6B, 56B, and 76B may be provided with the connection openings 6b, 56b, and 76b connected to the gas discharge ports 12 of the battery cells 1 and 51, respectively.
  • the gas duct is constituted by the first duct and the second duct, and a gas duct having a columnar gas discharge path is formed inside, while the second duct has a connection opening and the first duct. Can easily and efficiently provide the metal layer.
  • the gas ducts 6, 56, and 76 have columnar gas discharge passages 46 therein, and are the inner surfaces of the gas ducts 6, 56, and 76,
  • the metal layer 17 can be provided only on the surface facing the surface on which the connection openings 6b, 56b, 76b are provided, and the other surfaces can be exposed.
  • the metal layer 17 can be affixed to the inner surfaces of the gas ducts 6, 56, and 76 in the form of an aluminum sheet. With the above configuration, the metal layer can be provided on the inner surface of the gas duct easily and inexpensively.
  • the metal layer 17 is provided by sticking an aluminum sheet on the inner surface of the first duct 6A, 56A, 76A, and the second duct 6B.
  • , 56B, and 76B can include a support portion 57 that protrudes toward the metal layer 17 attached to the first ducts 6A, 56A, and 76A.
  • a vehicle including the power supply device according to the seventh aspect of the present invention can include any one of the power supply devices described above.
  • a power storage device including the power supply device according to the eighth aspect of the present invention can include any one of the power supply devices described above.
  • FIG. 2 is a cross-sectional view taken along line II-II of the power supply device shown in FIG.
  • FIG. 3 is a partially enlarged cross-sectional view corresponding to a cross section taken along line III-III of the power supply device shown in FIG.
  • It is a bottom perspective view of the power supply device shown in FIG.
  • It is a disassembled perspective view of the power supply device shown in FIG.
  • It is a disassembled perspective view of the electric laminated body of the power supply device shown in FIG.
  • FIG. 10 is an enlarged vertical sectional view of the power supply device shown in FIG. 9.
  • FIG. 6 is a bottom perspective view of the top cover shown in FIG. 5.
  • It is a vertical cross-sectional view of a power supply device according to another embodiment of the present invention.
  • It is a perspective view of the gas duct used for the power supply device concerning the other Example of this invention.
  • It is a disassembled perspective view of the gas duct shown in FIG. It is the disassembled perspective view which looked at the gas duct shown in FIG. 14 from the lower side.
  • FIG. 1 It is a vertical cross-sectional view of the gas duct shown in FIG. It is a block diagram which shows the example which mounts a power supply device in the hybrid car which drive
  • the embodiment described below exemplifies a power supply device for embodying the technical idea of the present invention, a vehicle including the power supply device, and a power storage device
  • the present invention includes a power supply device, a vehicle including the power supply device
  • the power storage device is not specified as follows.
  • the member shown by the claim is not what specifies the member of embodiment.
  • the dimensions, materials, shapes, relative arrangements, and the like of the constituent members described in the embodiments are not intended to limit the scope of the present invention only to the description unless otherwise specified. It is just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation.
  • each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing.
  • the contents described in some examples and embodiments may be used in other examples and embodiments.
  • FIG. 1 is a perspective view of the power supply device
  • FIG. 2 is a cross-sectional view taken along line II-II of the power supply device of FIG. 1
  • FIG. 4 is a bottom perspective view of the power supply device of FIG. 1
  • FIG. 5 is an exploded perspective view of the power supply device of FIG. 1
  • FIG. 6 is an exploded perspective view of the battery stack
  • FIG. 7 is a first duct of the gas duct. A bottom perspective view is shown respectively.
  • the power supply apparatus shown in these figures is most suitable for the power supply of an electric vehicle such as a hybrid car that runs with both an engine and a motor and an electric vehicle that runs with only a motor.
  • the power supply device of the present invention can be used for vehicles other than hybrid cars and electric vehicles, and can also be used for applications requiring high output other than electric vehicles.
  • a power supply device 100 shown in FIGS. 1 to 6 includes a plurality of battery cells 1 in which a gas discharge port 12 having a gas discharge valve 11 is provided on a first end face 10 and a battery in which these battery cells 1 are stacked.
  • the laminated body 2 and a gas duct 6 fixed on one surface of the battery laminated body 2 so as to be connected to the gas discharge port 12 of each battery cell 1 are provided.
  • the power supply device shown in the drawing is fixed to the end plate 3 and the end plate 3 disposed on both end faces of the battery stack 2, and the battery stack 2 is fastened in the stacking direction via the end plate 3.
  • connection fixture 4 and one surface of the battery stack 2 are fixed to the end plate 3 so as to face the surface to which the gas duct 6 is fixed, and the battery stack is interposed via the end plate 3.
  • a sub-connecting fixture 5 for fastening the body 2 in the stacking direction is provided.
  • the gas duct 6 is disposed at a fixed position of the battery stack 2 via the sub-connecting fixture 5.
  • a plurality of battery cells 1 having a rectangular outer shape are stacked to form a battery stack 2.
  • the battery cell 1 has a rectangular outer can and is provided with a gas discharge valve 11 for discharging gas generated inside the outer can.
  • the battery cell 1 is provided with a gas discharge port 12 for discharging gas from the gas discharge valve 11 on the surface of the outer can.
  • a plurality of battery cells 1 are stacked in a posture in which the first end face 10 is arranged on substantially the same plane, and a plurality of gas discharge ports 12 are arranged on the first surface 2A. ing.
  • a plurality of battery cells 1 are stacked in a posture in which the first end face 10 provided with the gas discharge valve 11 is an upper surface. (Battery cell 1)
  • the battery cell 1 is a rectangular battery that is wider than the thickness, in other words, a rectangular battery that is thinner than the width, and is stacked in the thickness direction to form the battery stack 2.
  • the battery cell 1 is a lithium ion secondary battery.
  • the battery cell may be a secondary battery such as a nickel metal hydride battery or a nickel cadmium battery.
  • the battery cell 1 in FIG. 6 is a battery having a rectangular shape with both wide surfaces, and is laminated so that both surfaces face each other to form a battery laminate 2.
  • positive and negative electrode terminals 13 are provided so as to protrude from both end portions of the first end surface 10 that is the upper surface, and a gas discharge port 12 of a gas discharge valve 11 is provided in the center portion.
  • the rectangular battery cell 1 has the opening part of the outer can which press-processes the metal plate in the cylinder shape which obstruct
  • the sealing plate used as the first end face 10 is a flat metal plate, and its outer shape is the shape of the opening of the outer can.
  • the sealing plate is laser welded and fixed to the outer peripheral edge of the outer can so as to hermetically close the opening of the outer can.
  • the sealing plate fixed to the outer can has positive and negative electrode terminals 13 fixed to both ends thereof, and a gas discharge port 12 is provided between the positive and negative electrode terminals 13.
  • a gas discharge valve 11 is provided inside the gas discharge port 12.
  • the gas discharge valve 11 is opened when the internal pressure of the battery cell 1 becomes higher than the set pressure, thereby preventing the internal pressure from increasing.
  • the gas discharge valve 11 incorporates a valve body (not shown) that closes the gas discharge port 12.
  • the valve body is a thin film that is destroyed at a set pressure, or a valve that is pressed against the valve seat by an elastic body so as to open at the set pressure.
  • the plurality of battery cells 1 to be stacked are connected in series and / or in parallel with each other by connecting positive and negative electrode terminals 13.
  • the power supply device connects positive and negative electrode terminals 13 of adjacent battery cells 1 to each other in series and / or in parallel via a bus bar 14.
  • a power supply device that connects adjacent battery cells in series can increase the output voltage by increasing the output voltage, and can connect adjacent battery cells in parallel to increase the charge / discharge current.
  • the battery stack 2 shown in FIG. 5 and FIG. 6 twelve battery cells 1 are stacked on each other via a separator 15, and these battery cells 1 are connected in series.
  • adjacent battery cells 1 are arranged in opposite directions, and electrode terminals 13 adjacent on both sides thereof are connected by a bus bar 14 to connect two adjacent battery cells 1 in series. All battery cells 1 are connected in series.
  • the present invention does not specify the number of battery cells constituting the battery stack and the connection state thereof.
  • the battery stack 2 has a separator 15 sandwiched between stacked battery cells 1.
  • the separator 15 insulates adjacent battery cells 1.
  • the separator 15 shown in the figure is an insulating sheet.
  • a plastic sheet can be used as this insulating sheet. Since the separator 15 made of a plastic insulating sheet can be made thin, the total length of the battery stack 2 can be shortened to make the whole compact.
  • a plastic molded into a plate shape can be used as the separator. This separator can be laminated so that adjacent battery cells are not displaced as a shape in which the battery cells are fitted and arranged at a fixed position.
  • molded with a plastic can also cool a battery cell by providing the surface with the cooling clearance gap which allows cooling gas, such as air, to pass through.
  • cooling gas such as air
  • air can be forcedly blown into the cooling gap to directly and efficiently cool the outer can of the battery cell.
  • the separator formed of a plastic material having a low thermal conductivity has an effect of effectively preventing thermal runaway of adjacent battery cells.
  • the outer can can be made of metal such as aluminum.
  • the battery stack does not necessarily need to interpose a separator between battery cells.
  • a separator between battery cells For example, by separating the battery cells adjacent to each other by a method such as forming the battery cell outer can with an insulating material or coating the outer periphery of the battery cell outer can with an insulating sheet or insulating paint, etc. It is because it can be made unnecessary.
  • the battery stack without interposing separators between the battery cells is a method of directly cooling using a refrigerant or the like without adopting an air cooling method in which cooling air is forced between the battery cells to cool the battery cells. Can be used to cool the battery cell. (end plate)
  • a pair of end plates 3 are disposed on both end faces of the battery stack 2, and the battery stack 2 is fastened by being sandwiched from both ends by the pair of end plates 3.
  • the end plate 3 is a quadrangle having the same shape and dimensions as the outer shape of the battery cell 1 and sandwiches the stacked battery stack 2 from both end faces.
  • the entire end plate 3 in FIG. 5 is made of metal.
  • the metal end plate is strong as a whole, and can stably hold the battery stack from both ends.
  • the end plate can be entirely made of plastic, or can be reinforced by fixing a reinforcing bracket to a plastic main body.
  • the end plate 3 shown in the drawing is provided with fitting recesses 3A and 3B for the connection fixture 4 and the sub connection fixture 5 on the outer surface so that the connection fixture 4 and the sub connection fixture 5 can be fixed in place. Yes.
  • the end plate 3 shown in the figure has a coupling recess for fitting coupling portions 4B provided at both ends of the coupling fixture 4 to the corners of the four corners of the outer surface in order to fix the coupling fixture 4 in place. 3A is provided.
  • the shape of the fitting recess 3A is such that the connecting portion 4B of the connecting fixture 4 can be fitted.
  • end plate 3 is fitted to fit the connecting portions 5B provided at both ends of the sub-connecting fixture 5 to the upper end portion of the outer surface in order to fix the sub-connecting fixture 5 in place.
  • a recess 3B is also provided.
  • the shape of the fitting recess 3B is such that the connecting portion 5B of the sub-connecting fixture 5 can be fitted.
  • the end plate 3 shown in the figure has female screw holes 3a and 3b for screwing set screws 18 and 19 for fixing both ends of the connection fixture 4 and the sub-connection fixture 5 on the outer peripheral surface.
  • the end plate 3 shown in the figure has a female screw hole 3a through which a set screw 18 for fixing a pair of connecting fixtures 4 arranged at the upper ends of both side surfaces 2B of the battery stack 2 is inserted into the upper surface of the end plate 3. It is provided at the left and right ends.
  • the end plate 3 has female screw holes 3b through which set screws 18 for fixing the pair of connecting fixtures 4 arranged at the lower ends of the both side surfaces 2B of the battery stack 2 are formed on both side surfaces of the end plate 3. It is provided at the lower end.
  • the end plate 3 has a female screw hole 3b through which a set screw 19 for fixing the sub-connecting fixture 5 arranged on the first surface 2A of the battery stack 2 is inserted at the center of the upper surface of the end plate 3.
  • the above structure is a direction in which the axial direction of the set screws 18 and 19 screwed into the end plate 3 intersects the stacking direction of the battery stack 2. For this reason, in a state where the power supply device vibrates by receiving a force from the outside, the shearing force acting on the shaft portions of the set screws 18 and 19 screwed into the end plate 3 is reduced, and the set screws 18 and 19 are protected. A stronger connection strength can be realized. Further, there is also a feature that the set screws 18 and 19 can be more firmly connected by making the entire length of the set screws 18 and 19 larger than the thickness of the end plate 3, that is, by increasing the total length of the set screws 18 and 19. (Connecting fixture 4)
  • connection fixture 4 is extended in the stacking direction of the battery stack 2, both ends are fixed to the end plate 3, and the battery stack 2 is fastened in the stacking direction.
  • the connecting fixture 4 shown in the figure is disposed to face both side surfaces 2B different from the first surface 2A of the battery stack 2.
  • the structure in which the connecting fixture 4 is arranged and fastened on both side surfaces 2B of the battery stack 2 can more securely fasten the plurality of battery cells 1 in the stacking direction.
  • the connecting fixtures are not necessarily arranged on both side surfaces of the battery stack.
  • the connection fixture can be disposed on the top surface and the bottom surface, or can be disposed only on the top surface and the bottom surface without being disposed on both side surfaces.
  • the connecting fixture 4 is a metal plate having a predetermined width and a predetermined thickness along the surface of the battery stack 2.
  • the connection fixture 4 can be a metal plate such as iron, preferably a steel plate.
  • the connecting fixture 4 made of a metal plate is provided with connecting portions 4B that are connected to the end plate 3 at both ends of the binding portion 4A.
  • the connecting fixture 4 shown in the drawing is bent at substantially right angles at both ends along the outer surface of the end plate 3 to provide a connecting portion 4B.
  • the connection portions 4 ⁇ / b> B at both ends are connected to the end plate 3, whereby the connection portions 4 ⁇ / b> B of the connection fixture 4 are locked to the pair of end plates 3 disposed at both ends of the battery stack 2.
  • connection fixture 4 of FIG. 5 the connection portion 4 ⁇ / b> B is connected to fitting recesses 3 ⁇ / b> A provided at the four corners of the end plate 3, and the pair of end plates 3 are connected by the four connection fixtures 4. Therefore, the connecting portion 4 ⁇ / b> B of the connecting fixture 4 is bent along the fitting recess 3 ⁇ / b> A of the end plate 3. Further, both ends of the connection fixture 4 are fixed to the end plate 3 with set screws 18.
  • the connecting fixture 4 shown in the figure is provided with opening through holes into which set screws 18 are inserted at both ends of the binding portion 4A.
  • the connecting fixture 4 is configured such that a set screw 18 is inserted into the through hole in a state where the connecting portions 4B at both ends are connected to the fitting recess 3A of the end plate 3, and the set screw 18 is provided on the outer peripheral surface of the end plate 3. It is screwed into the female screw hole 3 a and fixed to the pair of end plates 3.
  • the connection portion 4B of the connection fixture 4 is locked to the end plate 3 so that the battery stack 2 can be firmly connected in the stacking direction. Strength can be realized. Further, in this configuration, since the set screws 18 and 19 are not positioned in the stacking direction of the battery stack 2, it is possible to suppress an increase in size of the power supply device.
  • the electrode terminal 13 of the battery cell 1 and a cooling plate 30 described later are disposed in the vertical direction of the end plate 3. The above-described configuration allows for an increase in the size of the power supply device.
  • the connecting fixture 4 shown in FIGS. 2 and 5 is arranged at the corners of the four corners of the battery stack 2 with the binding section 4A having an L-shaped cross-sectional shape.
  • 4 A of bind parts of this shape can arrange
  • the connecting fixture does not necessarily need to have an L-shaped cross-sectional shape for all the binding portions, only the upper connecting fixture has an L-shaped cross-sectional shape at the upper corner of the battery stack.
  • only the lower connection fixture can be arranged in the lower corner portion of the battery stack with the cross-sectional shape being L-shaped.
  • the connection fixture does not necessarily need to be disposed along the corner portion of the battery stack, and can be disposed along both side surfaces of the battery stack or along both side surfaces and the bottom surface.
  • the connection fixture can be formed in a plate shape along the side surface of the battery stack. The plate-shaped main fixture can also open the opening. (Gas duct 6)
  • the gas duct 6 is a first surface which is the upper surface of the battery stack 2 in a posture facing the gas discharge port 12 of each battery cell 1 so as to guide the gas discharged from the gas discharge valve 11 to the outside of the power supply device. It is arranged on the surface 2A.
  • the gas duct 6 is designed to have sufficient strength so as not to be destroyed when high-pressure and high-temperature gas is discharged, and preferably made of a plastic excellent in heat resistance and chemical resistance, for example, made of polybutylene terephthalate. .
  • the gas duct can be made of plastic such as nylon resin or epoxy resin.
  • molds a gas duct with resin has the advantage that it is excellent in workability and there are few restrictions on a design.
  • the gas duct 6 shown in FIG. 2 and FIG. 3 is formed in a hollow shape, and is a surface facing the battery stack 2 and at a position facing the gas discharge port 12 of each battery cell 1.
  • the connection opening 6b connected to is provided.
  • the gas duct 6 shown in the drawing is provided with a columnar gas discharge passage 46 inside, so that the gas discharged from the gas discharge port 12 of the battery cell 1 flows into the gas discharge passage 46 through the connection opening 6b. I have to.
  • the gas duct 6 is provided with a metal layer 17 on the inner surface in order to improve resistance to the high-temperature gas discharged from the gas discharge port 12.
  • the gas duct 6 is provided with a metal layer 17 on the inner surface thereof, that is, on the surface facing the gas discharge port 12, that is, on the inner surface facing the surface provided with the connection opening 6b.
  • the gas duct 6 shown in FIGS. 2, 3, and 7 includes a prismatic gas discharge passage 46 inside, and is a top surface 6 t of the gas discharge passage 46, and a bottom surface provided with a connection opening 6 b.
  • the metal layer 17 is provided only on the inner surfaces facing each other, and the inner surface of the gas duct 6 is exposed on the other surfaces without providing the metal layer 17.
  • This structure can reliably protect the top surface 6t of the gas duct 6 by causing the high-temperature gas discharged from the gas discharge port 12 to directly collide with the metal layer 17.
  • the high temperature gas injected from the gas discharge port 12 is normally injected in a direction perpendicular to the first end face 10 of the battery cell 1, and therefore the top surface 6t side where the high temperature gas is directly injected is most heated. Be susceptible. Therefore, by providing the metal layer 17 only at this portion, the metal layer 17 can be provided only at the minimum necessary portion, and its resistance can be maintained.
  • the gas duct can also be provided with a metal layer on a surface other than the inner surface facing the connection opening, for example, the inner surface of the side wall.
  • the metal duct 17 is provided by fixing the metal sheet 17 ⁇ / b> A to the inner surface of the gas duct 6.
  • the metal layer can be provided by fixing a thin metal plate to the inner surface of the gas duct instead of the metal sheet.
  • the metal layer 17A or the metal layer 17 made of a thin metal plate is provided with an adhesive layer on one side and is attached to the inner surface of the gas duct 6 through the adhesive layer, or the gas duct is provided through an adhesive or a double-sided tape. 6 can be affixed to the inner surface.
  • the gas duct 6 shown in FIG. 8 is provided with a metal layer 17 by fixing the metal plate 17B to the inner surface of the gas duct 6 by insert molding.
  • the metal layer 17 shown in the figure is provided by inserting a strip-shaped metal plate 17B so as to be positioned along the top surface 6t of the gas discharge path 46 on the inner surface of the groove-shaped gas duct 6.
  • both side edges of the metal plate 17B are embedded in a boundary portion between the top surface 6t and the side wall 6f, and are fixed to the inner surface facing the bottom surface provided with the connection opening 6b.
  • the metal plate can be embedded by bending both side edges and extending to the inner surface of the side wall.
  • the structure in which the metal plate 17B is inserted and fixed to the gas duct 6 can be firmly fixed to a fixed position of the gas duct 6 even if the metal plate is somewhat thick, and the gas duct is inserted by the inserted metal plate 17B.
  • the whole 6 can be reinforced.
  • the metal layer made of a metal plate can be fixed at a fixed position on the inner surface of the gas duct by means such as a locking structure or a fitting structure.
  • the thickness of the metal layer 17 can be reduced by making the metal layer 17 thin and easy to be deformed.
  • the metal layer 17 can be easily attached in a state of being in close contact with the inner surface of the gas duct 6 while reducing the weight and manufacturing cost.
  • the heat capacity can be increased while the strength against impact is increased, and the heat received from the high-temperature gas can be quickly diffused. Therefore, the metal layer 17 composed of the metal sheet 17A and the metal plate 17B is set to an optimum thickness in consideration of these matters.
  • the metal to be used is selected considering these things.
  • an aluminum metal sheet 17A or a metal plate 17B can be preferably used.
  • the metal sheet 17A and the metal plate 17B made of aluminum are inexpensive, light, and have excellent thermal conductivity, so that the heat of the high-temperature gas discharged from the gas discharge port 12 can be efficiently conducted and diffused.
  • aluminum sheets commonly used aluminum foil and aluminum foil can be used.
  • Such an aluminum sheet has a thickness of 6 ⁇ m to 0.3 mm, preferably 50 ⁇ m to 0.2 mm, and can achieve excellent thermal conductivity while being applied simply and at low cost.
  • the metal layer which consists of a thin metal plate made from aluminum can be easily affixed while simplifying the handling with a thickness of 1 mm or less, and can realize excellent resistance.
  • the aluminum metal plate 17B that is inserted into and fixed to the gas duct 6 has a large thickness, thereby increasing heat capacity and quickly diffusing heat, thereby realizing excellent resistance.
  • the aluminum metal plate 17B inserted into the gas duct 6 can be, for example, 0.2 mm to 3 mm, preferably 0.5 mm to 2 mm.
  • metals other than aluminum can also be used for the metal layer.
  • the gas duct 6 shown in FIG. 5 is manufactured by being divided into a first duct 6A and a second duct 6B.
  • the first duct 6A and the second duct 6B are divided in a direction perpendicular to the first end face 10 of the battery cell 1, and the second duct 6B is formed between the first duct 6A and the battery stack 2. Arranged in between.
  • This gas duct 6 connects the first duct 6A and the second duct 6B to each other to form a columnar gas discharge path 46 therein.
  • the first duct 6A shown in FIGS. 2, 7, and 8 is formed in a shape having a groove-shaped recess 6d on the inside, and the opening of the groove-shaped recess 6d is formed as a gas discharge port of the battery cell 1.
  • the first duct 6A shown in the figure is the inner surface of the groove-shaped recess 6d, and the metal layer 17 is provided on the top surface 6t of the gas discharge path 46. Furthermore, the first duct 6A shown in the figure is a flange that protrudes outward along the opening edge of the groove-shaped recess 6d so as to be fixed to the battery stack 2 via a sub-connecting fixture 5 described later. 6a is integrally formed.
  • the second duct 6B has a plate shape arranged along the first surface 2A of the battery stack 2 and has a stepped recess 6c on the surface for fitting the flange 6a of the first duct 6A.
  • the second duct 6B is a hollow gas duct 6 in which the flange 6a of the first duct 6A is fitted into the stepped recess 6c to connect the first duct 6A and the second duct 6B.
  • the gas duct 6 can be hermetically fixed by vibration welding the first duct 6A and the second duct 6B, ultrasonic welding, or bonding them.
  • first duct and the second duct do not necessarily need to be fixed by welding or bonding, and a packing (not shown) is arranged at the boundary between the stepped recess and the flange, and the packing is sandwiched.
  • the first duct and the second duct can be connected in an airtight manner by being connected in a state.
  • the second duct 6B is provided with a connection opening 6b connected to the gas discharge port 12 of each battery cell 1, and the connection opening 6b is connected to the gas discharge port 12.
  • the second duct 6 ⁇ / b> B in the figure is provided with a rectangular connection opening 6 b at a position facing the gas discharge port 12 of the battery cell 1.
  • the connection opening may be an oval shape or an elliptical shape along the gas discharge port of the battery cell.
  • the first duct 6A and the second duct 6B can be made of plastics of different materials.
  • the gas duct 6 can be formed by molding the first duct 6A with a plastic excellent in heat resistance and the second duct 6B with a plastic excellent in insulation.
  • the first duct 6A is made of plastic such as polybutylene terephthalate, nylon resin or epoxy resin in which glass fiber or carbon fiber is embedded and reinforced
  • the second duct 6B is made of nylon resin or epoxy. It can be made of insulating plastic such as resin. Even if the 2nd duct formed by an insulating plastic contacts the surface of a battery cell, it does not short-circuit the outer can of a battery cell.
  • the gas duct 6 is provided with a discharge portion 6 x that discharges the gas inside the gas duct 6 to the outside at one end portion.
  • a hollow pipe projecting from the upper surface is connected to a cylindrical pipe communicating with an internal gas discharge path 46 to form a discharge section 6x.
  • an external duct 36 is connected to the discharge portion 6x to discharge the gas flowing in from the gas duct 6 to the outside.
  • the surface plate 8 is disposed on the first surface 2 ⁇ / b> A of the battery stack 2, and the battery cells 1 stacked on each other by the surface plate 8.
  • the first end face 10 is covered.
  • the surface plate 8 is formed in an outer shape along the upper surface of the battery stack 2.
  • the surface plate 8 is also used as the second duct 6B of the gas duct 6. That is, the surface plate 8 shown in the drawing is provided with a plurality of connection openings 6b by using a portion facing the plurality of gas discharge ports 12 arranged at the center of the battery stack 2 as the second duct 6B. . Therefore, the surface plate 8 is formed of an insulating plastic such as nylon resin or epoxy resin.
  • the surface plate 8 is provided with an opening window 24 for disposing the bus bar 14 at a position facing the electrode terminal 13 of the battery cell 1.
  • the surface plate 8 in the figure is provided with a plurality of opening windows 24 along both sides of the battery stack 2 on both sides of the central portion constituting the second duct 6B.
  • the opening window 24 is sized and shaped along the outer shape of the bus bar 14 so that it can be connected to the electrode terminal 13 while guiding the bus bar 14 to a fixed position.
  • the bus bar 14 disposed in the opening window 24 of the surface plate 8 is fixed to the electrode terminal 13 of the battery cell 1 by welding such as laser welding, and connects the plurality of battery cells 1 to a predetermined connection state.
  • the power supply device does not necessarily need to arrange the surface plate on the first surface of the battery stack.
  • the above surface plate 8 is fixed to the first surface of the battery stack 2 via the sub-connecting fixture 5 that connects the gas duct 6 to the battery stack 2.
  • the structure in which the surface plate 8 disposed on the first surface 2A of the battery stack 2 is also used as the gas duct 6 allows the gas duct 6 to be arranged easily and at low cost by reducing the number of parts.
  • the structure in which the surface plate 8 is also used as the second gas duct 6B is to connect the first gas duct 6A with the battery stack 2 fastened in advance through the connection fixture 4 in the assembly process of the power supply device. Therefore, the first gas duct 6A can be more reliably connected to the second gas duct 6B in an airtight state.
  • the power supply device of the present invention can also be disposed on the first surface of the battery stack without using the surface plate as a gas duct, with the gas duct as a separate member.
  • a through hole 58A extending in the stacking direction of the battery cells 1 is opened at the center of the surface plate 58, and the gas duct 56 is disposed in the through hole 58A.
  • the gas duct 56 shown in FIGS. 9 and 10 is divided into a first duct 56A and a second duct 56B.
  • the first duct 56A and the second duct 56B are connected to each other, and a prismatic shape is formed inside.
  • a gas discharge path 46 is provided.
  • the first duct 56A is provided with a groove-shaped recess 56d having a lower opening in the drawing, and the opening of the groove-shaped recess 56d is disposed so as to face the gas outlet 12 of the battery cell 1. Yes.
  • the first duct 56A shown in the figure is provided with the metal layer 17 on the top surface 56t of the gas discharge path 46, on the inner surface of the groove-shaped recess 56d. Furthermore, the first duct 56A shown in the drawing is provided with a flange 56a that projects outward along the opening edge of the groove-shaped recess 56d.
  • the second duct 56 ⁇ / b> B is provided with a connection opening 56 b connected to the gas discharge port 12 at a position facing the gas discharge port 12 of each battery cell 1. Further, the second duct 6B shown in FIG. 9 is provided between the connection openings 56b and integrally provided with a support portion 57 that protrudes toward the metal layer 17 of the first duct 56A. The second duct 56B shown in the drawing is located between the connecting openings 56b adjacent to each other, and a plurality of support portions 57 are provided. However, the support portions can be provided at predetermined intervals.
  • the support portion 57 shown in the figure has its tip edge in contact with the metal layer 17.
  • the support portion 57 whose tip is brought into contact with the metal layer 17 is characterized in that the metal layer 17 can be supported while being pressed and the metal layer 17 can be held at a fixed position on the inner surface of the first duct 56A.
  • This support portion can also be reliably supported on the inner surface side of the first duct without dropping the peeled metal layer even if the adhesive strength of the metal layer is lowered with time.
  • the support portion 57 shown in the figure is a cylindrical convex portion, and the outer diameter of the convex portion is made narrower than the inner width of the gas exhaust passage 46 so that the gas discharged to the gas exhaust passage 46 can pass smoothly.
  • the support portion may be a rib.
  • the rib-shaped support portion can support the metal layer over a wide area by bringing the tip end face closer to or in contact with the inner surface of the metal layer.
  • the first duct 56A and the second duct 56B described above are hermetically fixed by vibration welding, ultrasonic welding, or adhesion to form the gas duct 56.
  • the gas duct does not necessarily need to be divided into the first duct and the second duct, but is formed as a single cylinder, and a plurality of connection openings are provided on one surface of the cylinder, and the connection openings are connected to the gas exhaust of the battery cell. It can also be connected to the outlet. (Packing)
  • the power supply device has a packing 7 disposed between the gas ducts 6 and 56 and the battery stack 2.
  • the packing 7 is a rubber-like elastic body, and is disposed between a sealing plate, which is the first end face 10 of the plurality of battery cells 1 constituting the battery stack 2, and the gas ducts 6 and 56.
  • the space between the battery cells 1 is airtightly closed.
  • the packing 7 made of a rubber-like elastic body is sandwiched between the battery stack 2 and the gas ducts 6 and 56 and elastically deforms.
  • the packing 7 in a state where the sub-connecting fixture 5 presses the gas ducts 6 and 56 against the battery stack 2, the packing 7 is sandwiched between the gas ducts 6 and 56 and the battery stack 2 and crushed, and the gas ducts 6 and 56 and the battery cell are pressed. 1 is securely closed.
  • the elastically deformable packing 7 hermetically closes the space between the gas ducts 6 and 56 and the battery cell 1 and allows the exhaust gas ejected from the gas exhaust port 12 to flow into the gas ducts 6 and 56 without leaking. Exhaust to the outside.
  • the packing 7 shown in FIGS. 5 and 9 is a long and narrow plate extending in the stacking direction of the battery stack 2, and a through hole 7 b is provided at a position facing the gas discharge port 12 of each battery cell 1.
  • the through-hole 7b is located at a position facing the connection openings 6b and 56b opened in the second ducts 6B and 56B, and allows gas passing through the through-hole 7b to flow into the gas ducts 6 and 56.
  • the through-hole 7b of the packing 7 is disposed in a state of facing the gas discharge port 12 of the battery cell 1, and the battery cell 1 and the gas ducts 6 and 56 are closed, so that the gas is discharged from the gas discharge port 12. The gas can be surely prevented from leaking.
  • the packing 7 shown in the figure is provided with a rectangular through hole 7b extending along the inner shape of the connection openings 6b and 56b opened in the second ducts 6B and 56B, and this through hole 7b is formed in the gas discharge port 12 of the battery cell 1. It is connected.
  • the through hole can be formed in an oval shape or an elliptical shape along the gas discharge port of the battery cell.
  • the packing 7 shown in the drawing is disposed at a fixed position on the lower surface of the second ducts 6B and 56B, that is, the surface facing the battery stack 2, and the through hole 7b is disposed at a position facing the connection openings 6b and 56b.
  • the second duct 6B shown in FIG. 2 is integrally formed with a rib 6e extending along the outer periphery of the packing 7 protruding from the lower surface, and the packing 7 is guided inside the rib 6e and arranged at a fixed position.
  • the packing can also be disposed at a fixed position of the battery stack by adhesion or the like.
  • the above packing has a plate shape as a whole and opens a plurality of through-holes.
  • the packing may be formed in a ring shape facing each connection opening.
  • This structure arrange
  • the above gas ducts 6 and 56 are arranged facing the gas discharge port 12 of the battery stack 2 and are in place via the sub-connecting fixture 5 arranged on the first surface 2A of the battery stack 2. Fixed. As shown in FIGS. 5 and 9, the sub-connecting fixture 5 is disposed to face the first surface 2 ⁇ / b> A of the battery stack 2, and the gas ducts 6 and 56 are disposed at fixed positions of the battery stack 2. ing. Both ends of the sub-connecting fixture 5 are also fixed to the end plate 3, and the battery stack 2 is fastened with the first surface 2A.
  • the sub coupling fixture 4 is a metal plate having a predetermined width and thickness, and a metal plate such as iron, preferably a steel plate can be used.
  • the sub coupling fixture 4 made of a metal plate is provided with coupling portions 5B coupled to the outer surface of the end plate 3 at both ends of the binding portion 5A.
  • the sub coupling fixture 5 shown in the figure includes two rows of binding portions 5A and a coupling portion 5B formed by coupling both ends of these binding portions 5A.
  • Two rows of binding portions 5 ⁇ / b> A are disposed along both sides of the gas ducts 6 and 56.
  • the two rows of binding portions 5A are arranged at predetermined intervals so that the flange portions 6a and 56a provided on both sides of the gas ducts 6 and 56 can be pressed.
  • the sub-connecting fixture 5 is fixed to the end plate 3 with the gas ducts 6 and 56 disposed between the two rows of binding portions 5A, and presses the flange portions 6a and 56a with the two rows of binding portions 5A. .
  • the two rows of binding portions 5A are connected at both ends by connecting portions 5B, and the connecting portions 5B are bent at substantially right angles and connected to the end plate 2.
  • the sub-connecting fixture 5 connects the battery stack 2 from both ends by connecting the connecting portions 5B at both ends to the fitting recesses 3B provided on the end plate 3, with the pair of end plates 3 being set at a predetermined interval. . Furthermore, the both ends of the sub coupling fixture 5 are fixed to the end plate 3 with set screws 19.
  • the sub-connecting fixture 5 shown in the figure is provided with opening through holes into which set screws 19 are inserted at both ends of the binding portion 5A.
  • the sub-connecting fixture 5 is configured such that a set screw 19 is inserted into the through hole in a state in which the connecting portions 5B at both ends are connected to the fitting recess 3B of the end plate 3, and the set screw 19 is provided on the outer peripheral surface of the end plate 3. Screwed into the female screw holes 3b and fixed to the pair of end plates 3.
  • the sub-connecting fixture 5 shown in the figure is integrally formed with two rows of binding portions 5A and connecting portions 5B at both ends, but the sub-connecting fixture can also be divided into two. Although the sub-connecting fixtures divided into two are not shown, each may be arranged along both sides of the gas duct, and each binding part may press the claws along the flanges protruding from both sides of the gas duct. it can.
  • the sub-connecting fixture can also connect two rows of binding portions with a bridging portion provided in the middle and arrange the bridging portion on the upper surface of the gas duct.
  • the sub-connecting fixture can be arranged at a fixed position on the first surface of the battery stack by pressing the upper surface of the gas duct at the bridge portion.
  • the sub-connecting fixture includes a row of binding portions, and presses the upper surface of the gas duct with this binding portion, so that the gas duct is disposed at a fixed position on the first surface of the battery stack. You can also. (Circuit board)
  • the power supply device shown in FIGS. 2 and 5 includes a circuit board 9 connected to the battery stack 2, and the circuit board 9 is located above the gas duct 6 and between the top cover 20. It is arranged.
  • the top cover 20 shown in the drawing is provided with a storage recess 21 for storing the circuit board 9 on the upper surface side, and the circuit board 9 is stored in the storage recess 21.
  • the circuit board 9 is mounted with an electronic component (not shown) that implements a protection circuit for the battery cell 1.
  • the circuit board 9 is mounted with a voltage detection circuit for detecting a cell voltage connected to each battery cell 1, a temperature detection circuit for detecting the temperature of the battery cell 1, etc. 1 is controlled so as to prevent overcharging and overdischarging, or charging / discharging is controlled so as to prevent an abnormal temperature rise of the battery cell 1.
  • Electronic components that realize these circuits are arranged on the circuit board 9 and stored in the storage recess 21.
  • the circuit board 9 shown in the figure is arranged at a fixed position on the upper surface of the gas duct 6 via the sub-connecting fixture 5. 2, 3, and 5, a plurality of nuts 26 are fixed to the upper surface of the binding portion 5 ⁇ / b> A in order to fix the circuit board 9.
  • a set screw 25 penetrating the circuit board 9 is screwed into a nut 26 provided in the sub-connecting fixture 5, and the circuit board 9 is disposed at a fixed position on the upper surface of the gas duct 6.
  • the sub-connecting fixture 5 made of a metal plate is disposed between the circuit board 9 and the battery stack 2, so that the circuit board 9 is attached to the battery stack 2 with the metal plate of the sub-connecting fixture 5.
  • the circuit board 9 can be shielded from the battery stack 2 by the metal layer 17.
  • the battery stack 2 is charged and discharged with a large current, and is charged and discharged with a particularly large pulse current, so that pulse noise is emitted.
  • the metal plate of the sub-connecting fixture 5 and the metal layer 17 of the gas ducts 6 and 56 are between the circuit board 9 and the battery stack 2, and the circuit board 9 is removed from the pulsed induction noise radiated from the battery stack 2. It has a feature that it can be shielded to prevent malfunction due to induced noise of the circuit board 9. In particular, the induction noise from the battery stack 2 can be more effectively shielded by connecting the sub-connecting fixture, which is a metal plate, to the earth line. (Top cover)
  • the top cover 20 covers the upper surface of the surface plate 8 and covers and protects the bus bar 14 and the circuit board 9 connected to the battery stack 2. Therefore, the top cover 20 has an outer shape capable of covering the upper surface of the surface plate 8 and is molded of plastic into a shape having a space in which the circuit board 9 can be accommodated.
  • the top cover 20 shown in FIGS. 2 and 11 is formed into a shallow container shape with a lower opening, and the central portion is formed one step deeper than the surroundings, and a storage recess 21 for storing the circuit board 9 is formed. Provided.
  • the top cover 20 is provided with a notch 22 for projecting the discharge part 6x of the gas duct 6 to the outside at one end.
  • the top cover 20 causes the discharge portion 6 x to be exposed to the outside from the cutout portion 22 in a state of being connected to the upper surface of the battery stack 2.
  • the top cover 20 shown in FIGS. 1 and 11 has output terminal windows 23 at both ends. In the battery stack 2, output terminal plates 16 are connected to the electrode terminals 13 of the battery cells 1 arranged at both ends. The top cover is provided with terminal windows 23 opened at both ends for exposing these output terminal plates 16 to the outside.
  • the above top cover 20 is fixed to the gas duct 6 via a set screw 27.
  • the gas duct 6 shown in FIG. 5 is provided with a connecting boss 28 integrally formed on the upper surface in order to fix the top cover 20 at a fixed position.
  • the connecting boss 28 in FIG. 5 is provided so as to protrude from the upper surface of both end portions of the gas duct 6.
  • the top cover 20 has a through hole 29 at a position facing the connection boss 28, and a set screw 27 inserted through the through hole 29 is screwed into the connection boss 28 of the gas duct 6 to fix the battery stack 2. Fixed in position.
  • the power supply device provided with the top cover 20 can prevent the connection portion between the battery cells 1 having a high voltage, the circuit board 9 and the like from being exposed. For example, the battery is inadvertently used during maintenance. It is possible to prevent the circuit from being short-circuited by contacting the connection portion between the cells 1 or the circuit board 9 or the like. Also, a simple waterproof effect can be obtained.
  • the metal layer 17 is not only provided at a position facing the gas discharge port 12, but the metal layer 17 is formed on the opposite surface of the gas discharge port 12 of the gas duct 6 over both ends of the gas duct 6 as shown in FIG.
  • the above power supply device is the structure which presses the gas duct 6 with the sub coupling fixture 5, it can adhere
  • the volume of the gas duct 6 can be made relatively small, that is, the height of the gas duct 6 can be reduced.
  • a power supply device can arrange a gas duct or a circuit board inside the tip of an electrode terminal of a battery cell, for example, and suppresses the enlargement of a power supply device by having such composition. Can do.
  • An example of such a power supply device is shown in FIG.
  • the electrode terminal 63 provided on the first end surface 60 of the battery cell 51 is protruded from the upper surface in the form of a rod having a male screw on the outer peripheral surface.
  • the electrode terminal 63 is inserted into the through hole of the bus bar 14 and a nut 67 is screwed to fix the bus bar 14 in a fixed position.
  • the battery cell 51 has a shape in which the electrode terminal 63 protrudes from the first end face 60 of the battery cell 51 so that the nut 67 can be screwed.
  • electrode terminals 63 are arranged along both sides of the first surface 2 ⁇ / b> A, and the gas duct 6 is arranged between these electrode terminals 63.
  • the gas duct 6 is formed to have a low height.
  • the gas duct 6 is arranged in a state where the upper surface is brought close to the gas outlet 12 of the battery cell 51, and is arranged inside the tip of the electrode terminal 63.
  • the inner side of the tip of the electrode terminal 63 means the first end surface 10 side of the line connecting the tips of the electrode terminals 63 located at both ends of the first end surface 10 of the battery cell 1. To do.
  • the gas duct 6 is disposed inside the line connecting the tips of the electrode terminals 63 located at both ends of the battery cell 1 and does not protrude from the line. Thereby, the enlargement of a power supply device is suppressed, without making the gas duct 6 protrude from the battery laminated body 2 highly.
  • the circuit board 9 is arranged between the electrode terminals 63 arranged on both sides of the gas duct 6, and the circuit board 9 is also located inside the tip of the electrode terminal 63. Is arranged. While this power supply device has a structure in which the circuit board 9 is disposed on the first surface 2 ⁇ / b> A side of the battery stack 2, an increase in size of the power supply device can be suppressed. Furthermore, the area of the circuit board can be increased. This is because the enlargement of the power supply device can be suppressed even if the circuit board is enlarged. A circuit board having a large area can be arranged in an ideal state while simplifying the wiring pattern provided on the surface and taking into consideration the heat dissipation of the electronic components to be mounted.
  • the power supply device shown in FIG. 12 includes a surface plate 68 that covers the first surface 2 ⁇ / b> A of the battery stack 2, and has an opening window 24 in which the bus bar 14 is disposed along both sides of the surface plate 68.
  • the surface plate 68 shown in the drawing is provided with a partition wall 68a protruding in the protruding direction of the electrode terminal 63 along the opening edge of the opening window. Since this structure can protect the electrode terminal 63 and the bus bar protruding from the battery cell with the partition wall 68a, it can effectively prevent a short circuit or the like from coming into contact with the electrode terminal or the bus bar 14 of the battery cell 1 during maintenance. Can be prevented.
  • the gas duct 6 and the circuit board 9 arranged between the electrode terminals 63 are arranged on the inner side of the tip of the partition wall 68a.
  • the inside of the tip of the partition wall 68a means the first surface 2A side with respect to the line connecting the tips of the partition walls 68a provided on both sides of the surface plate 68. That is, the gas duct 6 and the circuit board 9 are disposed inside the line connecting the leading ends of the partition walls 68a provided on both sides of the surface plate 68, and do not protrude from the line. Thereby, the enlargement of a power supply device is suppressed, without making the gas duct 6 and the circuit board 9 protrude highly from the battery laminated body 2.
  • the gas ducts 6 and 56 are fixed to the first surface 2 ⁇ / b> A of the battery stack 2 via the sub-connecting fixture 5.
  • the gas duct is not necessarily fixed to the battery stack via the sub-connecting fixture, and can be fixed to the battery stack via another connection structure.
  • the gas duct 76 shown in FIGS. 13 to 16 is configured to be fixed to end plates (not shown) disposed at both ends of the battery stack through fixing screws 79. Further, the gas duct 76 shown in FIGS. 13 to 16 is an example of the gas duct 76 that is disposed on the first surface of the battery stack as a whole.
  • the cylindrical gas duct 76 is divided into a first duct 76A and a second duct 76B, and the first duct 76A and the second duct 76B are connected to each other so that a corner is formed inside.
  • a columnar gas discharge path 46 is provided.
  • the first duct 76A is provided with a thin lid-shaped groove-shaped recess 76d having a lower opening in the drawing, and the opening of the groove-shaped recess 76d is disposed so as to face the gas discharge port of the battery cell. Is done.
  • the first duct 76A shown in the figure is the inner surface of the groove-shaped recess 76d, and the metal layer 17 is provided on the top surface 76t of the gas discharge path 46.
  • the gas duct 76 also fixes the metal layer 17 made of the metal sheet 17A to the inner surface.
  • the second duct 76B is in the form of a long and narrow container formed by providing a peripheral wall 76g around the belt-like bottom plate 76f.
  • the gas duct 76 has a cylindrical shape as a whole by connecting the tip edge of the peripheral wall 76g of the second duct 76B to the outer peripheral portion of the first duct 76A. Further, the second duct 76B is provided with a plurality of connection openings 76b connected to the gas discharge ports 12 of the respective battery cells 1 in the bottom plate 76f.
  • the 15 and 16 is provided with a plurality of cylindrical portions 76h protruding from the lower surface of the bottom plate 76f, and provided with a connecting opening 76b penetrating these cylindrical portions 76h.
  • the cylinder portion 76h is provided to face the gas discharge port 12 provided in each battery cell 1.
  • the gas duct 76 is connected to the gas discharge port of the battery cell 1 through a packing 77 arranged on the lower surface of the second duct 76B and connected to the periphery of the cylindrical portion 76h.
  • the packing 77 is a rubber-like elastic body, and is disposed between the gas duct 76 and the first end face of the battery cell so that the gas ejected from the gas discharge port of the battery cell can flow into the gas duct 76 without leaking. I have to. As shown in FIGS.
  • the packing 77 has an elongated shape extending in the same direction as the gas duct 76, and is provided with a plurality of through holes 77 b into which the cylindrical portions 76 h of the gas duct 76 are fitted at predetermined intervals.
  • the packing 77 is disposed at a fixed position of the gas duct 76 via the positioning holder 78 and is in close contact with the first end face of the battery cell.
  • This structure can flow into the gas discharge path 46 of the gas duct 76 and exhaust outside without leaking the exhaust gas ejected from the gas discharge port of the battery cell.
  • the above-described gas duct 76 is connected to a fixed position of the positioning holder 78 by guiding a cylindrical portion 76 h protruding from the lower surface to a positioning hole 78 b provided in the positioning holder 78. Further, the gas duct 76 is arranged at a fixed position of the packing 77 by inserting a cylindrical portion 76 h penetrating the positioning holder 78 into the through hole 77 b of the packing 77. The gas duct 76 is inserted into the through-hole 77 b of the packing 77 with the cylindrical portion 76 h passing through the positioning holder 78, and is disposed at a fixed position of the battery stack through the packing 77.
  • the packing 26 and the positioning holder 78 are connected to each other by a fitting structure, and the packing 26 is disposed at a fixed position of the gas duct 76.
  • the fitting structure shown in the figure is a structure in which the cylindrical portion 76 h provided in the second duct 76 B is inserted into the positioning hole 78 b of the positioning holder 78 and the through hole 77 b of the packing 77.
  • This fitting structure is characterized in that the gas discharged from the battery cell can flow into the gas duct 76 while the packing 77 and the gas duct 76 are connected to each other at an accurate position.
  • the present invention does not specify the fitting structure between the gas duct and the packing in this structure.
  • the fitting structure of the gas duct and the packing is provided with a convex portion on one side, a concave portion for inserting the convex portion on the other side, and the convex portion is inserted into the concave portion so as to be connected to each other in a fixed position. be able to.
  • the gas duct 76 described above is provided with connecting pieces 75 for fixing to the battery stack 2 at both ends thereof.
  • the connecting piece 75 shown in the figure protrudes from both ends of the second duct 76B, and is fixed to the end plate of the battery stack through a set screw 79 screwed into the connecting piece 75.
  • the illustrated gas duct 76 is fixed at a fixed position of the battery stack by connecting a set screw 79 inserted into the connecting piece 75 at both ends to the end plate.
  • the end plate (not shown) to which the gas duct 76 is fixed has a screw hole for screwing a fixing screw 79 for connecting the gas duct 76 on the upper surface.
  • the gas duct 76 is fixed at a fixed position of the battery stack by fixing screws 79 inserted into the connecting pieces 75 into the end plate. (Cooling plate)
  • a battery stack 2 formed by stacking a plurality of battery cells 1 is arranged on the surface of the cooling plate 30 in a heat conductive state. This power supply device forcibly cools the cooling plate 30 to dissipate heat generated by each battery cell 1.
  • the cooling plate 30 is provided with a refrigerant passage 31 therein, supplies the liquefied refrigerant to the refrigerant passage 31, vaporizes the refrigerant in the refrigerant passage 31, and heats vaporization of the refrigerant.
  • the battery cell 1 is cooled by forcibly cooling.
  • a cooling mechanism that forcibly cools the cooling plate 30 with the heat of vaporization of the refrigerant is not shown, a compressor that pressurizes the refrigerant in a gaseous state, a condenser that cools and liquefies the gas pressurized by the compressor, And an expansion valve that supplies the refrigerant liquefied by the condenser to the refrigerant passage 31 of the cooling plate 30.
  • This cooling mechanism supplies the liquefied refrigerant to the cooling plate 30 via the expansion valve, vaporizes the supplied refrigerant inside the cooling plate 30, and cools the cooling plate 30 with heat of vaporization.
  • the vaporized refrigerant is pressurized by the compressor, supplied to the condenser, liquefied by the condenser, and circulated to the refrigerant passage 31 of the cooling plate 30 via the expansion valve to cool the cooling plate 30.
  • the refrigerant passage 31 provided inside the cooling plate 30 is connected to the cooling mechanism via a connecting portion 32 protruding outward.
  • the cooling plate is not necessarily cooled by the heat of vaporization of the refrigerant, and can be cooled by circulating a cooled liquid inside, for example. Further, the cooling plate can be cooled by providing a cooling gas passage inside and forcibly blowing the gas cooled in this passage.
  • the battery stack 2 is formed by stacking 12 battery cells 1.
  • the battery cells to be stacked are 11 or less, or 13 or more. It can also be connected in series and / or in parallel.
  • the gas duct is formed into the battery stack by the sub-connecting fixture. Since it is configured to be pressed toward the outside, the gas duct and the gas outlet can be kept airtight even when the number of battery cells is large.
  • an electrode terminal is arrange
  • a cooling plate is arrange
  • an electrode terminal and a cooling plate are battery laminated bodies depending on the structure of a power supply device. It may be provided on the side surface side.
  • a set screw for fixing the connection fixture may be fixed to the side surface of the end plate. According to this configuration, the position of the set screw can be made to correspond to the position of the electrode terminal or the cooling plate, and an increase in size of the power supply device can be suppressed.
  • the gas stack is held and the sub connection fixture for fastening the battery stack is provided.
  • the load resulting from the fastening can be distributed to the connection fixture and the sub connection fixture. For this reason, compared with the structure which fastens a battery laminated body only with a connection fixture, the intensity
  • the above power supply devices can be used as in-vehicle power supplies.
  • a vehicle equipped with a power supply device an electric vehicle such as a hybrid vehicle or a plug-in hybrid vehicle that runs with both an engine and a motor, or an electric vehicle that runs only with a motor can be used, and it is used as a power source for these vehicles. .
  • FIG. 17 shows an example in which a power supply device is mounted on a hybrid vehicle that runs with both an engine and a motor.
  • a vehicle HV equipped with the power supply device shown in this figure includes an engine 96 and a travel motor 93 that travel the vehicle HV, a power supply device 100 that supplies power to the motor 93, and a generator that charges a battery of the power supply device 100.
  • the power supply apparatus 100 is connected to a motor 93 and a generator 94 via a DC / AC inverter 95.
  • the vehicle HV travels by both the motor 93 and the engine 96 while charging / discharging the battery of the power supply device 100.
  • the motor 93 is driven to drive the vehicle when the engine efficiency is low, for example, during acceleration or low-speed driving.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by the engine 96 or is driven by regenerative braking when the vehicle is braked to charge the battery of the power supply device 100.
  • FIG. 18 shows an example in which a power supply device is mounted on an electric vehicle that runs only with a motor.
  • a vehicle EV equipped with the power supply device shown in this figure includes a traveling motor 93 for traveling the vehicle EV, a power supply device 100 that supplies power to the motor 93, and a generator 94 that charges a battery of the power supply device 100.
  • the power supply apparatus 100 is connected to a motor 93 and a generator 94 via a DC / AC inverter 95.
  • the motor 93 is driven by power supplied from the power supply device 100.
  • the generator 94 is driven by energy when regeneratively braking the vehicle EV and charges the battery of the power supply device 100.
  • this power supply apparatus can be used not only as a power source for a moving body but also as a stationary power storage facility.
  • a power supply system that is charged with sunlight or midnight power and discharged when necessary, or a streetlight power supply that charges sunlight during the day and discharges at night, or during a power outage It can also be used as a backup power source for driving signals.
  • FIG. The power supply apparatus 100 shown in this figure forms a battery unit 82 by connecting a plurality of battery packs 81 in a unit shape. Each battery pack 81 has a plurality of battery cells connected in series and / or in parallel. Each battery pack 81 is controlled by a power controller 84.
  • the power supply apparatus 100 drives the load LD after charging the battery unit 82 with the charging power supply CP. For this reason, the power supply apparatus 100 includes a charging mode and a discharging mode.
  • the load LD and the charging power source CP are connected to the power supply device 100 via the discharging switch DS and the charging switch CS, respectively.
  • ON / OFF of the discharge switch DS and the charge switch CS is switched by the power supply controller 84 of the power supply apparatus 100.
  • the power supply controller 84 switches the charging switch CS to ON and the discharging switch DS to OFF to permit charging from the charging power supply CP to the power supply apparatus 100.
  • the power controller 84 turns off the charging switch CS and turns on the discharging switch DS to discharge.
  • the mode is switched to permit discharge from the power supply apparatus 100 to the load LD.
  • the charge switch CS can be turned on and the discharge switch DS can be turned on to supply power to the load LD and charge the power supply device 100 at the same time.
  • the load LD driven by the power supply device 100 is connected to the power supply device 100 via the discharge switch DS.
  • the power supply controller 84 switches the discharge switch DS to ON, connects to the load LD, and drives the load LD with the power from the power supply apparatus 100.
  • the discharge switch DS a switching element such as an FET can be used. ON / OFF of the discharge switch DS is controlled by the power supply controller 84 of the power supply apparatus 100.
  • the power controller 84 also includes a communication interface for communicating with external devices. In the example of FIG. 19, the host device HT is connected in accordance with an existing communication protocol such as UART or RS-232C. Further, if necessary, a user interface for the user to operate the power supply system can be provided.
  • Each battery pack 81 includes a signal terminal and a power supply terminal.
  • the signal terminals include a pack input / output terminal DI, a pack abnormality output terminal DA, and a pack connection terminal DO.
  • the pack input / output terminal DI is a terminal for inputting / outputting signals from other pack batteries and the power supply controller 84
  • the pack connection terminal DO is for inputting / outputting signals to / from other pack batteries which are child packs.
  • the pack abnormality output terminal DA is a terminal for outputting the abnormality of the battery pack to the outside.
  • the power supply terminal is a terminal for connecting the battery packs 81 in series and in parallel.
  • the power supply device can be suitably used as a power supply device for a plug-in hybrid electric vehicle, a hybrid electric vehicle, an electric vehicle or the like that can switch between the EV traveling mode and the HEV traveling mode.
  • a backup power supply that can be mounted on a rack of a computer server, a backup power supply for a wireless base station such as a mobile phone, a power supply for home use, a power supply for a factory, a power supply for a street light, etc. It can also be used as appropriate for applications such as backup power supplies for devices and traffic lights.
  • SYMBOLS 100 Power supply device 1 ... Battery cell 2 ... Battery laminated body; 2A ... 1st surface; 2B ... Side surface 3 ... End plate; 3A ... Insertion recessed part; 3B ... Insertion recessed part 3a ... Female screw hole; 4A ... Binding portion; 4B ... Connection portion 5 ... Sub-connection fixing device; 5A ... Binding portion; 5B ... Connection portion 6 ... Gas duct; 6A ... First duct; 6B ... Second duct 6a ... 6b ... Stepped recess; 6d ... Groove-shaped recess 6e ... Rib; 6f ... Side wall; 6t ... Top surface; 6x ...
  • Discharge part 7 ... Packing; 7b ... Through hole 8 ... Surface plate 9 ... Circuit board 10 ... first end face 11 ... gas exhaust valve 12 ... gas exhaust port 13 ... electrode terminal 14 ... bus bar 15 ... separator 16 ... output terminal plate 17 ... metal layer; 17A ... metal sheet; 17B ... metal plate 18 ... Set screw 19 ... Set screw 20 ... Top cover 21 Storage recess 22 ... cutout 23 ... terminal window 24 ... opening window 25 ... nut 26 ... set screw 27 ... set screw 28 ... connection boss 29 ... through hole 30 ... cooling plate 31 ... refrigerant passage 32 ... connection part 36 ... external duct 46 ... gas discharge path 51 ... battery cell 56 ... gas duct; 56A ...

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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)
  • Battery Mounting, Suspending (AREA)
PCT/JP2013/061457 2012-04-27 2013-04-18 Dispositif d'alimentation électrique, véhicule comprenant celui-ci, et dispositif de stockage d'électricité Ceased WO2013161655A1 (fr)

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JP2012-103935 2012-04-27
JP2012103935A JP2015133169A (ja) 2012-04-27 2012-04-27 電源装置及びこれを備える車両並びに蓄電装置

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JP2018163883A (ja) * 2018-05-25 2018-10-18 株式会社Ｇｓユアサ 蓄電装置
US10290845B2 (en) 2014-03-31 2019-05-14 Gs Yuasa International Ltd. Energy storage apparatus
WO2020110448A1 (fr) 2018-11-28 2020-06-04 三洋電機株式会社 Module de batterie
JPWO2020188948A1 (fr) * 2019-03-19 2020-09-24
JPWO2020194965A1 (fr) * 2019-03-22 2020-10-01
JPWO2020194966A1 (fr) * 2019-03-22 2020-10-01
WO2022185590A1 (fr) * 2021-03-01 2022-09-09 ビークルエナジージャパン株式会社 Bloc-batterie
EP4167355A1 (fr) * 2021-10-15 2023-04-19 Volvo Car Corporation Bloc de cellules de batterie pour véhicule électrique
WO2023133728A1 (fr) * 2022-01-12 2023-07-20 宁德时代新能源科技股份有限公司 Batterie, dispositif de consommation d'énergie et procédé de fabrication de batterie
JP2024060668A (ja) * 2022-10-20 2024-05-07 プライムプラネットエナジー＆ソリューションズ株式会社 電池モジュール
EP4379919A1 (fr) * 2022-11-30 2024-06-05 SK On Co., Ltd. Bloc-batterie
US12068499B2 (en) 2019-03-19 2024-08-20 Sanyo Electric Co., Ltd. Battery module
US12199308B2 (en) 2019-05-22 2025-01-14 Sanyo Electric Co., Ltd. Bus bar plate
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CN115943522B (zh) * 2020-09-30 2025-02-18 宁德时代新能源科技股份有限公司 电池、装置、电池的制备方法以及制备装置
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WO2022104547A1 (fr) 2020-11-17 2022-05-27 宁德时代新能源科技股份有限公司 Batterie, dispositif utilisant une batterie, et procédé et dispositif de préparation de batterie
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JP2018163883A (ja) * 2018-05-25 2018-10-18 株式会社Ｇｓユアサ 蓄電装置
US20210391625A1 (en) * 2018-11-28 2021-12-16 Sanyo Electric Co., Ltd. Battery module
WO2020110448A1 (fr) 2018-11-28 2020-06-04 三洋電機株式会社 Module de batterie
JPWO2020188948A1 (fr) * 2019-03-19 2020-09-24
US12087963B2 (en) 2019-03-19 2024-09-10 Sanyo Electric Co., Ltd. Battery module
US12068499B2 (en) 2019-03-19 2024-08-20 Sanyo Electric Co., Ltd. Battery module
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CN113574725A (zh) * 2019-03-22 2021-10-29 三洋电机株式会社 电池模块
JPWO2020194965A1 (fr) * 2019-03-22 2020-10-01
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US12087964B2 (en) 2019-03-22 2024-09-10 Sanyo Electric Co., Ltd. Battery module
CN113632297A (zh) * 2019-03-22 2021-11-09 三洋电机株式会社 电池模块
WO2020194965A1 (fr) * 2019-03-22 2020-10-01 三洋電機株式会社 Module de batterie
JP7418410B2 (ja) 2019-03-22 2024-01-19 三洋電機株式会社 電池モジュール
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JP7418409B2 (ja) 2019-03-22 2024-01-19 三洋電機株式会社 電池モジュール
JPWO2020194966A1 (fr) * 2019-03-22 2020-10-01
US12199308B2 (en) 2019-05-22 2025-01-14 Sanyo Electric Co., Ltd. Bus bar plate
US12467864B2 (en) 2020-03-31 2025-11-11 Sanyo Electric Co., Ltd. Battery module
US12531265B2 (en) 2020-03-31 2026-01-20 Sanyo Electric Co., Ltd. Battery module
US12489168B2 (en) 2020-03-31 2025-12-02 Sanyo Electric Co., Ltd. Battery module
JP7529886B2 (ja) 2021-03-01 2024-08-06 ビークルエナジージャパン株式会社 組電池
JPWO2022185590A1 (fr) * 2021-03-01 2022-09-09
WO2022185590A1 (fr) * 2021-03-01 2022-09-09 ビークルエナジージャパン株式会社 Bloc-batterie
WO2023062138A1 (fr) * 2021-10-15 2023-04-20 Volvo Car Corporation Bloc de cellules de batterie pour véhicule électrique
EP4167355A1 (fr) * 2021-10-15 2023-04-19 Volvo Car Corporation Bloc de cellules de batterie pour véhicule électrique
US12469903B2 (en) 2021-10-15 2025-11-11 Volvo Car Corporation Battery cell pack for electric vehicle
WO2023133728A1 (fr) * 2022-01-12 2023-07-20 宁德时代新能源科技股份有限公司 Batterie, dispositif de consommation d'énergie et procédé de fabrication de batterie
JP7634512B2 (ja) 2022-10-20 2025-02-21 プライムプラネットエナジー＆ソリューションズ株式会社 電池モジュール
JP2024060668A (ja) * 2022-10-20 2024-05-07 プライムプラネットエナジー＆ソリューションズ株式会社 電池モジュール
EP4379919A1 (fr) * 2022-11-30 2024-06-05 SK On Co., Ltd. Bloc-batterie

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