WO2023013466A1 - Dispositif de stockage d'énergie - Google Patents

Dispositif de stockage d'énergie Download PDF

Info

Publication number
WO2023013466A1
WO2023013466A1 PCT/JP2022/028720 JP2022028720W WO2023013466A1 WO 2023013466 A1 WO2023013466 A1 WO 2023013466A1 JP 2022028720 W JP2022028720 W JP 2022028720W WO 2023013466 A1 WO2023013466 A1 WO 2023013466A1
Authority
WO
WIPO (PCT)
Prior art keywords
power storage
insulating member
axis direction
side member
storage element
Prior art date
Application number
PCT/JP2022/028720
Other languages
English (en)
Japanese (ja)
Inventor
修 牛嶌
Original Assignee
株式会社Ｇｓユアサ
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 株式会社Ｇｓユアサ filed Critical 株式会社Ｇｓユアサ
Priority to JP2023540270A priority Critical patent/JPWO2023013466A1/ja
Publication of WO2023013466A1 publication Critical patent/WO2023013466A1/fr

Links

Images

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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • 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 storage device including power storage elements.
  • Patent Document 1 discloses a battery pack (power storage device) in which a battery cell (power storage element) is sandwiched between a pair of end plates (end members), and the pair of end plates (end members) are connected by side plates (side members). device) is disclosed.
  • the present invention has been made by the inventors of the present invention, who have newly paid attention to the above problems, and provides an electric storage device in which an insulating member arranged to face an electric storage element can be easily fixed to the electric storage element. With the goal.
  • a power storage device includes a power storage element, a pair of end members sandwiching the power storage element in a first direction, and facing the power storage element in a second direction intersecting the first direction. , a side member connecting the pair of end members; and an insulating member arranged to face the storage element in a third direction intersecting the first direction and the second direction, wherein the insulating member and the One of the side members has a protrusion projecting toward the other of the insulating member and the side member, and the other of the insulating member and the side member has an opening or a recess into which the protrusion is inserted.
  • the insulating member is attached to the side member by inserting the protrusion into the opening or the recess.
  • the present invention can be realized not only as such a power storage device, but also as a combination of a side member and an insulating member.
  • the insulating member arranged to face the power storage element can be easily fixed to the power storage element.
  • FIG. 1 is a perspective view showing the appearance of a power storage device according to an embodiment.
  • FIG. 2 is an exploded perspective view showing each component when the power storage device according to the embodiment is exploded.
  • FIG. 3 is a perspective view showing the structure of the storage device according to the embodiment.
  • FIG. 4 is a perspective view showing the configuration of the side member according to the embodiment.
  • 5A and 5B are a perspective view, a side view, and a cross-sectional view showing the configuration of the insulating member according to the embodiment.
  • 6A and 6B are a perspective view and a cross-sectional view showing the configuration in which the insulating member according to the embodiment is attached to the side member.
  • FIG. 1 is a perspective view showing the appearance of a power storage device according to an embodiment.
  • FIG. 2 is an exploded perspective view showing each component when the power storage device according to the embodiment is exploded.
  • FIG. 3 is a perspective view showing the structure of the storage device according to the embodiment.
  • FIG. 4 is
  • FIG. 7 is a perspective view showing a configuration in which an insulating member according to the embodiment is attached to side members.
  • 8A is a cross-sectional view showing a configuration in which an insulating member according to a modification of the embodiment is attached to a side member;
  • FIG. 8B is a cross-sectional view showing a configuration in which an insulating member according to a modification of the embodiment is attached to a side member;
  • FIG. 8C is a cross-sectional view showing a configuration in which the insulating member according to the modified example of the embodiment is attached to the side member.
  • a power storage device includes a power storage element, a pair of end members sandwiching the power storage element in a first direction, and facing the power storage element in a second direction intersecting the first direction.
  • a side member that connects the pair of end members;
  • One of the member and the side member has a protrusion projecting toward the other of the insulating member and the side member, and the other of the insulating member and the side member has an opening into which the protrusion is inserted.
  • a recess is provided, and the insulating member is attached to the side member by inserting the projecting portion into the opening or the recess.
  • the insulating member can be easily attached to the side member by adopting a configuration in which the projecting portion of one of the insulating member and the side member is inserted into the opening or recess of the other.
  • the insulating member is attached to the side member in a state in which movement in the third direction, which is the direction facing the electric storage element, is restricted, so that the insulating member is restrained from moving with respect to the electric storage element.
  • the one of the insulating member and the side member is the insulating member, and the protruding portion protrudes toward the side member in the second direction. may be placed.
  • the insulating member can generally be formed of a material such as resin that is easy to process
  • the projecting portion can be easily formed by forming the projecting portion projecting in the second direction on the insulating member. This makes it possible to easily form a structure for attaching the insulating member to the side member.
  • the one of the insulating member and the side member has a plurality of protrusions, and the plurality of protrusions constitutes one opening.
  • the insulating member may be attached to the side member by being inserted into the recess.
  • the plurality of protrusions of one of the insulating member and the side member is inserted into one opening or recess formed in the other, so that the plurality of protrusions can be deformed independently.
  • the protrusion can be easily inserted into the opening or recess because the projection is inserted into one opening or recess as a single contact.
  • the plurality of protrusions are arranged side by side with a gap in the first direction, and the plurality of protrusions extend in the first direction.
  • the insulating member may be attached to the side member by being inserted into the opening or recess.
  • the plurality of projecting portions of one of the insulating member and the side member are arranged side by side in the first direction, and are inserted into the openings or recesses of the other member extending in the first direction.
  • An insulating member can be attached to the side member across the direction.
  • the power storage device further includes a spacer arranged in parallel with the power storage element in the first direction, wherein the spacer is inserted into a space between the plurality of protrusions. may be placed.
  • the spacer is inserted into the space between the plurality of protrusions of one of the insulating member and the side member, so that the length of the spacer can be increased in the second direction, and the insulation can be improved.
  • Spacers may also provide positioning of the protrusions. This makes it possible to easily attach the insulating member to the side member while ensuring insulation.
  • the direction in which a plurality of energy storage elements are arranged is defined as the X-axis direction.
  • the Y-axis direction is defined as the direction in which a pair of electrode terminals (positive electrode side and negative electrode side) in one energy storage element are aligned, the direction in which the short sides of the container of the energy storage element face each other, or the direction in which a pair of side members are aligned.
  • the alignment direction or vertical direction is defined as the Z-axis direction.
  • These X-axis direction, Y-axis direction, and Z-axis direction are directions that cross each other (perpendicularly in this embodiment).
  • the Z-axis direction may not be the vertical direction, but for convenience of explanation, the Z-axis direction will be described below as the vertical direction.
  • the positive direction of the X-axis indicates the direction of the arrow on the X-axis
  • the negative direction of the X-axis indicates the direction opposite to the positive direction of the X-axis.
  • the X-axis direction indicates either or both of the X-axis plus direction and the X-axis minus direction.
  • the Y-axis direction and the Z-axis direction may also be referred to as the first direction
  • the Y-axis direction may also be referred to as the second direction
  • the Z-axis direction may also be referred to as the third direction.
  • Expressions indicating relative directions or orientations also include cases where the directions or orientations are not strictly speaking.
  • two directions being parallel not only means that the two directions are completely parallel, but also being substantially parallel, that is, including a difference of about several percent, for example. means.
  • the expression “insulation” means "electrical insulation”.
  • FIG. 1 is a perspective view showing the appearance of power storage device 10 according to the present embodiment.
  • FIG. 2 is an exploded perspective view showing each component when power storage device 10 according to the present embodiment is exploded.
  • the power storage device 10 is a device that can charge electricity from the outside and discharge electricity to the outside, and has a substantially rectangular parallelepiped shape in the present embodiment.
  • the power storage device 10 is a battery module (assembled battery) used for power storage or power supply.
  • the power storage device 10 is used for driving mobile bodies such as automobiles, motorcycles, water crafts, ships, snowmobiles, agricultural machinery, construction machinery, or railroad vehicles for electric railways, or for starting engines. Used as a battery or the like.
  • the vehicles include electric vehicles (EV), hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and fossil fuel (gasoline, light oil, liquefied natural gas, etc.) vehicles.
  • Examples of railway vehicles for the electric railway include electric trains, monorails, linear motor cars, and hybrid trains having both diesel engines and electric motors.
  • the power storage device 10 can also be used as a stationary battery or the like for home or business use.
  • the power storage device 10 has an exterior body 100 . As shown in FIG. 2, a plurality of storage elements 200, a plurality of spacers 300, a pair of end members 400, a pair of side members 500, an insulating member 600, a plurality of bus bars 700, and the like are provided inside the exterior body 100. is accommodated.
  • the power storage device 10 includes electrical components such as a substrate, relays, fuses, shunt resistors, and connectors, an exhaust section for exhausting gas discharged from the power storage element 200 to the outside of the exterior body 100, and the like. may be provided.
  • the exterior body 100 is a box-shaped (substantially rectangular parallelepiped) container (module case) that constitutes the housing (outer shell) of the power storage device 10 .
  • the exterior body 100 is arranged outside the plurality of power storage elements 200 and the like, fixes the plurality of power storage elements 200 and the like at predetermined positions, and protects them from impacts and the like.
  • the exterior body 100 is made of, for example, polycarbonate (PC), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyphenylene sulfide resin (PPS), polyphenylene ether (PPE (including modified PPE)), polyethylene terephthalate ( PET), polybutylene terephthalate (PBT), polyetheretherketone (PEEK), tetrafluoroethylene-perfluoroalkyl vinyl ether (PFA), polytetrafluoroethylene (PTFE), polyethersulfone (PES), polyamide (PA) , ABS resin, or an insulating member such as a composite material thereof, or a metal coated with an insulating coating.
  • the exterior body 100 thereby prevents the power storage element 200 and the like from coming into contact with an external metal member or the like.
  • the exterior body 100 may be made of a conductive member such as metal as long as the insulation of the power storage element 200 and the like is maintained.
  • the exterior body 100 has an exterior body main body 110 that constitutes the main body of the exterior body 100 and an exterior body lid 120 that constitutes the lid of the exterior body 100 .
  • the exterior body main body 110 is a bottomed rectangular cylindrical housing (casing) having an opening, and accommodates the power storage element 200 and the like.
  • the exterior cover 120 is a flat rectangular member that closes the opening of the exterior main body 110 .
  • the exterior body lid 120 is joined to the exterior body main body 110 by an adhesive, heat sealing, ultrasonic welding, or the like.
  • the exterior body 100 has a structure in which the inside is sealed (sealed).
  • a pair of external terminals 121 (on the positive electrode side and the negative electrode side) are provided on the outer cover body 120 .
  • Power storage device 10 charges electricity from the outside and discharges electricity to the outside through the pair of external terminals 121 .
  • the power storage element 200 is a secondary battery (single battery) capable of charging and discharging electricity, specifically a non-aqueous electrolyte secondary battery such as a lithium ion secondary battery.
  • Energy storage element 200 has a flattened rectangular parallelepiped shape (square shape), and in the present embodiment, eight energy storage elements 200 are arranged side by side in the X-axis direction.
  • the size and shape of the power storage element 200, the number of power storage elements 200 to be arranged, and the like are not limited, and for example, only one power storage element 200 may be arranged.
  • the storage element 200 is not limited to a non-aqueous electrolyte secondary battery, and may be a secondary battery other than a non-aqueous electrolyte secondary battery, or may be a capacitor.
  • the power storage element 200 may be a primary battery that can use stored electricity without being charged by the user, instead of a secondary battery.
  • the storage element 200 may be a pouch-type storage element. A detailed description of the configuration of the storage element 200 will be given later.
  • Spacer 300 is arranged side by side with power storage element 200 (X-axis plus direction or X-axis minus direction) in the X-axis direction (first direction), side by side with power storage element 200, and insulates power storage element 200 from other members. It is a flat plate-shaped and rectangular member.
  • the spacers 300 are arranged between two adjacent energy storage elements 200 and between the end energy storage element 200 and the end member 400, and are arranged between the two energy storage elements 200 and the end energy storage elements. 200 and the end member 400 are insulated. In the present embodiment, nine spacers 300 are arranged corresponding to eight power storage elements 200, but the arrangement position and number of spacers 300 are not particularly limited.
  • the spacer 300 is a member having insulating properties such as any resin material that can be used for the exterior body 100, or a member having heat insulating properties such as a damper material formed by accumulating and bonding mica pieces. etc.
  • the end member 400 and the side member 500 are restraining members that externally press (restrain) the storage elements 200 in the direction in which the plurality of storage elements 200 are arranged (X-axis direction).
  • the end members 400 and the side members 500 sandwich the plurality of power storage elements 200 from both sides in the alignment direction, thereby pressing (restraining) each power storage element 200 included in the plurality of power storage elements 200 from both sides in the alignment direction.
  • the end member 400 and the side member 500 are formed of a metal member such as steel or stainless steel from the viewpoint of ensuring strength, but the material is not particularly limited, and the end member 400 and the side member 500 are formed of a high-strength insulating member. Alternatively, a metal member may be subjected to an insulation treatment.
  • the end members 400 are arranged on both sides of the plurality of energy storage elements 200 and the plurality of spacers 300 in the X-axis direction (first direction), so that the plurality of energy storage elements 200, etc. It is a plate-like rectangular restraining member (end plate) that is sandwiched and held.
  • the pair of end members 400 are arranged at positions sandwiching the plurality of energy storage elements 200 and the plurality of spacers 300 in the X-axis direction to restrain them.
  • the end member 400 may be a flat block-shaped member or the like instead of a plate-shaped member.
  • the side members 500 are arranged on both sides of the plurality of energy storage elements 200 and the plurality of spacers 300 in the Y-axis direction (the second direction that intersects with the first direction) so as to face the plurality of energy storage elements 200 and the like in the Y-axis direction. It is a plate-shaped and elongated restraining member (side plate). Both ends of the pair of side members 500 are attached to the pair of end members 400 , and by connecting the pair of end members 400 , the plurality of power storage elements 200 and the plurality of spacers 300 are bound.
  • the side member 500 extends in the X-axis direction so as to straddle the plurality of energy storage elements 200 and the plurality of spacers 300, and exerts a restraining force in the arrangement direction (X-axis direction) on the plurality of energy storage elements 200 and the like.
  • the side member 500 may be a long rod-shaped member or the like instead of a plate-shaped member.
  • the pair of side members 500 are attached to the Y-axis direction ends of the pair of end members 400 at both ends in the X-axis direction. Accordingly, the pair of side members 500 and the pair of end members 400 sandwich and constrain the plurality of power storage elements 200 and the like from both sides in the X-axis direction and both sides in the Y-axis direction.
  • the side member 500 is connected (joined) to the connecting member 400a of the end member 400 by a plurality of (two in this embodiment) connecting members 500a arranged in the Z-axis direction.
  • connecting member 400a is a bolt (screw)
  • connecting member 500a is a nut. 400 and the side member 500 are fastened.
  • the connection (joining) between the end member 400 and the side member 500 is not limited to fixing with bolts and nuts, and may be joined by welding, adhesion, or the like. A detailed description of the configuration of the side member 500 will be given later.
  • the insulating member 600 is a flat and rectangular member (also called a busbar holder, a busbar frame, or a busbar plate) that insulates the busbar 700 from other members and regulates the position of the busbar 700 .
  • the insulating member 600 is arranged to face the power storage element 200 in the Z-axis direction (the third direction intersecting the first direction and the second direction). Specifically, the insulating member 600 is arranged in the Z-axis positive direction of the plurality of power storage elements 200 and placed on the plurality of power storage elements 200 . Insulating member 600 is positioned with respect to power storage elements 200 and busbar 700 is positioned with respect to insulating member 600 , whereby busbar 700 is positioned with respect to power storage elements 200 .
  • the insulating member 600 is formed of, for example, a member having insulating properties such as any resin material that can be used for the exterior body 100 described above. A detailed description of the configuration of the insulating member 600 will be given later.
  • the bus bar 700 is a plate-shaped member connected to the power storage element 200 .
  • the bus bar 700 is arranged above the plurality of power storage elements 200 and connected (joined) to the electrode terminals 240 (see FIG. 3 etc.) of the plurality of power storage elements 200 .
  • the bus bar 700 connects the electrode terminals 240 of the plurality of storage elements 200 to each other and electrically connects the electrode terminals 240 of the storage elements 200 at the ends to the external terminals 121 .
  • bus bar 700 connects two power storage elements 200 in parallel to form four power storage element groups, and connects the four power storage element groups in series.
  • connection form of the bus bar 700 is not particularly limited, and a plurality of power storage elements 200 may be connected in series or in parallel in any combination, or all power storage elements 200 may be connected in series or in parallel.
  • Bus bar 700 and electrode terminal 240 are connected (joined) by welding, but the form of connection is not particularly limited.
  • Bus bar 700 is formed of a conductive member made of metal such as aluminum, aluminum alloy, copper, copper alloy, nickel, or a combination thereof, or a conductive member other than metal.
  • FIG. 3 is a perspective view showing the structure of the storage element 200 according to this embodiment. Specifically, FIG. 3 shows an enlarged appearance of one power storage element 200 out of the plurality of power storage elements 200 shown in FIG. Since the plurality of power storage elements 200 all have the same configuration, the configuration of one power storage element 200 will be described in detail below.
  • the electric storage element 200 includes a container 210 , a pair of electrode terminals 240 (positive electrode side and negative electrode side), and an upper gasket 250 . Inside the container 210, a lower gasket, an electrode body, a pair of current collectors (positive electrode side and negative electrode side), an electrolytic solution (non-aqueous electrolyte), etc. are accommodated, but illustration of these is omitted. .
  • the electrolytic solution the type is not particularly limited as long as it does not impair the performance of the electric storage element 200, and various kinds can be selected.
  • the electric storage element 200 may have spacers arranged on the side or below the electrode body, an insulating film that wraps the electrode body and the like, and the like. Furthermore, an insulating film (shrink tube or the like) covering the outer surface of the container 210 may be arranged around the container 210 .
  • the material of the insulating film is not particularly limited as long as it can ensure the insulation required for the power storage element 200, but any insulating resin, epoxy resin, Kapton (registered trademark) that can be used for the exterior body 100 can be used. , Teflon (registered trademark), silicone, polyisoprene, and polyvinyl chloride.
  • the container 210 is a rectangular parallelepiped (square or box-shaped) case having a container body 220 with an opening and a container lid 230 closing the opening of the container body 220 .
  • the container main body 220 is a rectangular cylindrical member having a bottom that constitutes the main body of the container 210, and has an opening formed in the positive direction of the Z axis.
  • the container lid 230 is a rectangular plate-like member that constitutes the lid of the container 210 and is arranged to extend in the Y-axis direction in the positive Z-axis direction of the container body 220 .
  • the container lid 230 has a gas discharge valve 231 that releases the pressure inside the container 210 when the pressure inside the container 210 rises excessively, and an injection part (FIG.
  • the material of the container 210 is not particularly limited, and can be a weldable (joinable) metal such as stainless steel, aluminum, aluminum alloy, iron, or plated steel plate. can also be used.
  • the container 210 has a structure in which the inside is sealed (sealed) by joining the container body 220 and the container cover 230 by welding or the like after the electrode body and the like are housed inside the container body 220 .
  • the container 210 has a pair of long side surfaces 211 on both side surfaces in the X-axis direction, a pair of short side surfaces 212 on both side surfaces in the Y-axis direction, and a bottom surface 213 on the Z-axis negative direction side.
  • the long side surface 211 is a rectangular planar portion that forms the long side surface of the container 210 and is arranged to face the adjacent spacers 300 in the X-axis direction.
  • Long side 211 is adjacent to short side 212 and bottom 213 and has a larger area than short side 212 .
  • the short side surface 212 is a rectangular planar portion that forms the short side surface of the container 210 and is arranged to face the side member 500 in the Y-axis direction.
  • Short side 212 is adjacent to long side 211 and bottom surface 213 and has a smaller area than long side 211 .
  • the bottom surface 213 is a rectangular planar portion that forms the bottom surface of the container 210 and is arranged adjacent to the long side surface 211 and the short side surface 212 .
  • the electrode terminal 240 is a terminal member (a positive electrode terminal and a negative electrode terminal) of the storage element 200 arranged in the container lid 230, and is electrically connected to the positive electrode plate and the negative electrode plate of the electrode assembly via the current collector. ing.
  • the electrode terminal 240 is made of metal for leading electricity stored in the electrode body to the external space of the storage element 200 and for introducing electricity into the internal space of the storage element 200 to store the electricity in the electrode body. It is a member made of The electrode terminal 240 is made of aluminum, aluminum alloy, copper, copper alloy, or the like.
  • the electrode assembly is a power storage element (power generation element) formed by laminating a positive electrode plate, a negative electrode plate, and a separator.
  • the positive electrode plate is formed by forming a positive electrode active material layer on a positive electrode substrate layer, which is a collector foil made of a metal such as aluminum or an aluminum alloy.
  • the negative electrode plate is formed by forming a negative electrode active material layer on a negative electrode substrate layer, which is a collector foil made of a metal such as copper or a copper alloy.
  • the active material used for the positive electrode active material layer and the negative electrode active material layer any known material can be appropriately used as long as it can intercalate and deintercalate lithium ions.
  • the electrode body is formed by stacking electrode plates (a positive electrode plate and a negative electrode plate) in the X-axis direction.
  • the electrode body includes a wound electrode body formed by winding electrode plates (a positive electrode plate and a negative electrode plate), and a laminated (stacked) electrode formed by stacking a plurality of flat plate-shaped electrode plates.
  • the electrode body may have any form, such as a body or a bellows-shaped electrode body in which an electrode plate is folded into a bellows shape.
  • the current collector is a conductive member (a positive electrode current collector and a negative electrode current collector) that is electrically connected to the electrode terminal 240 and the electrode body.
  • the positive electrode current collector is made of aluminum, an aluminum alloy, or the like, like the positive electrode substrate layer of the positive electrode plate
  • the negative electrode current collector like the negative electrode substrate layer of the negative electrode plate, is made of copper, a copper alloy, or the like.
  • the upper gasket 250 is a gasket that is arranged between the container lid 230 and the electrode terminal 240 to insulate and seal between the container lid 230 and the electrode terminal 240 .
  • the lower gasket is a gasket that is arranged between the container lid 230 and the current collector to insulate and seal between the container lid 230 and the current collector.
  • the upper gasket 250 and the lower gasket may be made of any material as long as it has insulating properties.
  • FIG. 4 is a perspective view showing the configuration of the side member 500 according to this embodiment. Since the pair of side members 500 shown in FIG. 2 have the same configuration, FIG. 4 shows an enlarged view of the side member 500 of the pair of side members 500 in the minus Y-axis direction.
  • 5A and 5B are a perspective view, a side view, and a cross-sectional view showing the configuration of the insulating member 600 according to this embodiment. Specifically, (a) of FIG. 5 is an enlarged perspective view showing the appearance of the insulating member 600 shown in FIG.
  • FIG. 5(c) is a side view showing the configuration of FIG. 5(b) viewed from the side (Y-axis negative direction).
  • FIG. 5(d) is a cross-sectional view of the configuration of FIG. 5(b) taken along a plane parallel to the YZ plane through the line Vd--Vd.
  • FIG. 6A and 6B are a perspective view and a cross-sectional view showing the configuration in which the insulating member 600 according to the present embodiment is attached to the side member 500.
  • FIG. Specifically, (a) of FIG. 6 shows the internal configuration of the exterior body 100 with the bus bar 700 omitted for convenience of explanation (the power storage element 200, the spacer 300, the end member 400, the side member 500, and the Fig. 11 is a perspective view showing a configuration in which an insulating member 600 is assembled;
  • FIG. 6(b) is a perspective view showing an enlarged part of the Y-axis minus direction end and the Z-axis plus direction end of the configuration shown in FIG. 6(a).
  • FIG. 6(c) is a cross-sectional view of the configuration of FIG. 6(b) taken along a plane parallel to the YZ plane passing through line VIc--VIc.
  • FIG. 7 is a perspective view showing a configuration in which the insulating member 600 according to this embodiment is attached to the side member 500.
  • FIG. Specifically, (a) of FIG. 7 is a perspective view showing a configuration in which the storage element 200 and the spacer 300 are arranged.
  • (b) of FIG. 7 is a perspective view showing a configuration in which an insulating member 600 is arranged on the storage element 200 and the spacer 300 .
  • (c) of FIG. 7 is a perspective view showing a configuration in which the side member 500 is arranged on the storage element 200 , the spacer 300 and the insulating member 600 .
  • the side member 500 has a side member main body 510 and side member wall portions 520 .
  • the insulating member 600 has an insulating member main body 610 and a projecting portion 620 .
  • a side member main body 510 of the side member 500 is arranged to face the plurality of power storage elements 200 and the plurality of spacers 300 in the Y-axis direction, and is a plate-like rectangular portion parallel to the XZ plane extending in the X-axis direction. .
  • An opening 511 is formed in the side member main body 510 .
  • the opening 511 is arranged at the end of the side member main body 510 in the positive Z-axis direction, extends in the X-axis direction from one end of the side member main body 510 to the other end in the X-axis direction, and extends the side member main body 510 along the Y-axis. It is a through hole penetrating in the direction.
  • the side member wall portions 520 of the side member 500 are plate-shaped portions that protrude in the Y-axis direction from both ends of the side member main body 510 in the X-axis direction toward the end member 400 and extend in the Z-axis direction.
  • Each side member wall portion 520 is formed with a plurality of (two in the present embodiment) circular through-holes 521 aligned in the Z-axis direction.
  • the side member wall portion 520 is arranged overlapping the end member 400, the connection member 400a of the end member 400 is inserted into the through hole 521, and the connection member 400a and the connection member 500a are connected (joined), The side member 500 is fixed to the end member 400 (see FIG. 6, etc.).
  • An insulating member main body 610 of the insulating member 600 is a plate-shaped rectangular portion parallel to the XY plane that faces the plurality of power storage elements 200 in the Z-axis direction and is arranged in the positive Z-axis direction of the plurality of power storage elements 200. is.
  • the insulating member main body 610 has a plurality of openings 611 and flow path forming portions 612 .
  • the openings 611 are rectangular through holes arranged side by side in the X-axis direction at both ends of the insulating member main body 610 in the Y-axis direction and penetrating through the insulating member main body 610 in the Z-axis direction. placed.
  • five openings 611 are formed corresponding to five busbars 700 .
  • the flow path forming portion 612 is a concave portion extending in the X-axis direction at the center portion of the insulating member main body 610 in the Y-axis direction. .
  • the flow path forming portion 612 forms a flow path through which the gas discharged from the gas discharge valve 231 of the power storage element 200 flows.
  • the protruding portion 620 of the insulating member 600 is a portion arranged to protrude from the Y-axis direction end portion of the insulating member main body 610 toward the side member 500 in the Y-axis direction (second direction).
  • a plurality of projecting portions 620 are arranged at both ends of the insulating member main body 610 in the Y-axis direction.
  • a plurality of protrusions 620 are arranged corresponding to each of the plurality of power storage elements 200 .
  • eight protruding portions 620 aligned in the X-axis direction are arranged at both ends of the insulating member main body 610 in the Y-axis direction, corresponding to the eight power storage elements 200 aligned in the X-axis direction. ing.
  • the plurality of projecting portions 620 are arranged side by side at intervals in the X-axis direction (first direction), and a space 630 is formed between two adjacent projecting portions 620 .
  • Each protrusion 620 has a first protrusion 621 and a second protrusion 622 .
  • the first protruding portion 621 is a plate-like portion parallel to the XZ plane and extending in the negative Z-axis direction from the Y-axis direction end of the insulating member main body 610 .
  • the first projecting portion 621 has a shape in which the width in the X-axis direction becomes narrower toward the negative Z-axis direction (inverted trapezoidal shape in the present embodiment). have.
  • the space 630 formed between two adjacent first projecting portions 621 has a wider width in the X-axis direction toward the negative Z-axis direction.
  • the second protrusion 622 protrudes from the end of the first protrusion 621 in the negative Z-axis direction toward the side member 500 in the Y-axis direction (in FIGS. 5B to 5D , in the negative Y-axis direction protruding) and extending in the X-axis direction along the first protrusion 621 .
  • the second protruding portion 622 has chamfered corners in the positive Z-axis direction of the tip in the Y-axis direction.
  • one of the insulating member 600 and the side member 500 has a plurality of protruding portions 620 that protrude toward the other (side member 500 in this embodiment). and the other (side member 500 ) has an opening 511 .
  • the insulating member 600 is attached to the side member 500 by inserting the protrusion 620 of the insulating member 600 into the opening 511 of the side member 500 . That is, the insulating member 600 is attached to the side member 500 by inserting a plurality of protrusions 620 arranged in the X-axis direction (first direction) into one opening 511 extending in the X-axis direction (first direction). be done.
  • the spacer 300 protrudes from the power storage element 200 in the Y-axis direction. placed.
  • the insulating member 600 is arranged (placed) in the Z-axis plus direction of the storage element 200 and the spacer 300 .
  • the protruding portion of the spacer 300 is inserted into the space 630 between the plurality of protruding portions 620 (first protruding portions 621). be.
  • the space 630 has a width in the X-axis direction that increases toward the negative Z-axis direction, so that the space 630 has a shape that allows the spacer 300 to be easily inserted.
  • the side member 500 is arranged on the storage element 200, the spacer 300, and the insulating member 600 from the Y-axis direction.
  • the insulating member 600 is attached to the side member 500 by inserting the plurality of projections 620 of the insulating member 600 into one opening 511 formed in the side member 500 .
  • the second protrusion 622 of the protrusion 620 is inserted into the opening 511 .
  • the second protruding portion 622 has a chamfered corner portion in the positive Z-axis direction of the distal end portion, so that the second protruding portion 622 has a shape that facilitates insertion into the opening portion 511 .
  • the second protruding portion 622 may also be chamfered at the corner portion of the tip portion in the negative Z-axis direction.
  • the surface of the second projecting portion 622 in the positive Z-axis direction contacts the inner surface of the opening 511 in the positive Z-axis direction, and The direction surface is inserted into the opening 511 while being spaced from the inner surface of the opening 511 in the negative Z-axis direction.
  • the second projecting portion 622 (projecting portion 620) is arranged with its movement restricted by the openings 511 on both sides in the Z-axis direction.
  • the insulating member 600 is attached to the side member 500 in such a manner that its movement to both sides in the Z-axis direction (third direction) is restricted.
  • the insulating member 600 may be in contact with the side member 500 on both sides in the Z-axis direction, or may be in contact with the side member 500 on either side in the Z-axis direction. Both sides in the axial direction may be separated from the side member 500 . That is, the protrusion 620 (second protrusion 622) may be in contact with the opening 511 on both sides in the Z-axis direction, or may be in contact with the opening 511 on either side in the Z-axis direction. They may be in contact with each other, or both sides in the Z-axis direction may be separated from the opening 511 .
  • the insulating member 600 is in contact with the side member 500 in the positive Z-axis direction and is separated from the side member 500 in the negative Z-axis direction. It is configured to come into contact with As a result, the side member 500 can press the insulating member 600 toward the power storage element 200 in the negative Z-axis direction.
  • the insulating member 600 arranged to face the power storage element 200 in the Z-axis direction (third direction) is attached to the side member 500.
  • the protrusion 620 of one of the insulating member 600 and the side member 500 (the insulating member 600 in this embodiment) is inserted into the opening 511 of the other (the side member 500 in this embodiment). , the insulating member 600 can be easily attached to the side member 500 .
  • the insulating member 600 can generally be formed of a material that is easy to process, such as resin, by forming the projecting portion 620 projecting in the Y-axis direction (second direction) in the insulating member 600, the projecting portion 620 can be easily formed.
  • the side member 500 is made of a hard material such as metal, it has a simple shape with an opening 511 rather than a complicated shape like the protrusion 620 .
  • the structure for attaching the insulating member 600 to the side member 500 can be easily formed, so that the insulating member 600 can be easily fixed to the power storage element 200 .
  • One of the insulating member 600 and the side member 500 has a plurality of protrusions 620 that are inserted into one opening 511 formed in the other (the side member 500).
  • the projections 620 are independently deformed and inserted into one opening 511 . Therefore, the projecting portion 620 can be easily inserted into the opening portion 511 .
  • a plurality of protruding portions 620 of one of the insulating member 600 and the side member 500 (insulating member 600) are arranged side by side in the X-axis direction (first direction), and the other (side member 500) of the X-axis direction (first one direction). Thereby, the insulating member 600 can be attached to the side member 500 over the X-axis direction (first direction).
  • the protrusions 620 may interfere with each other, or the protrusions 620 may interfere with other members (spacers 300). etc.) can be suppressed.
  • the spacer 300 is arranged in the Y-axis direction (second direction). length can be lengthened, and insulation can be improved. Spacer 300 may also position protrusion 620 . This makes it possible to easily attach the insulating member 600 to the side member 500 while ensuring insulation.
  • the insulating member 600 is a busbar holder that regulates the position of the busbar 700.
  • the insulating member 600 is fixed to electrical components such as substrates, relays, fuses, shunt resistors, connectors, and wiring. It may be an insulating member or any other insulating member. In other words, the insulating member 600 may be any insulating member as long as it is arranged to face the storage element 200 in the Z-axis direction (third direction).
  • the insulating member 600 is composed of one member in the above embodiment, it may be composed of a plurality of members. If the insulating member 600 is configured by one member, the configuration of the insulating member 600 can be simplified.
  • the insulating member 600 is attached to both the pair of side members 500 in the above embodiment, it may be attached to only one of the pair of side members 500 .
  • the side member 500 has a through hole as the opening 511 that penetrates the side member main body 510 in the Y-axis direction. ) may be provided with a recess recessed in the Y-axis direction.
  • the second protrusion 622 of the protrusion 620 of the insulating member 600 is inserted into the recess 512 of the side member main body 510 of the side member 500, so that the insulating member 600 is extended to both sides in the Z-axis direction. is arranged in a state in which it can contact with the side member 500 at .
  • FIG. 8A is a cross-sectional view showing a configuration in which insulating member 600 according to a modification of the present embodiment is attached to side member 500.
  • FIG. FIG. 8A is a diagram corresponding to (c) of FIG.
  • the second projecting portion 622 of the projecting portion 620 of the insulating member 600 has a shape elongated in the X-axis direction. good.
  • the opening 511 of the side member 500 can also be configured so as not to extend in the X-axis direction.
  • the insulating member 600 is provided with the projecting portion 620, and the side member 500 is provided with the opening 511 into which the projecting portion 620 is inserted.
  • the member 600 may be provided with an opening or recess into which the protrusion is inserted.
  • the concave portion provided in the side member may not be a concave portion in which the surface of the side member main body 510 facing the insulating member 600 (protruding portion 620) is concave in the Y-axis direction.
  • the side member 500 may include a protrusion 513 with a recess formed by the protrusion 513 .
  • the side member 500 may include protrusions 513 with recesses formed between the protrusions 513 .
  • FIG. 8B is a cross-sectional view showing a configuration in which insulating member 600 according to a modification of the present embodiment is attached to side member 500. As shown in FIG. FIG. 8B is a diagram corresponding to (c) of FIG.
  • the plurality of projecting portions 620 are arranged side by side in the X-axis direction (first direction) at intervals. may be arranged side by side in one direction or another.
  • the openings 511 are formed in positions, sizes and shapes corresponding to the arrangement positions of the plurality of protrusions 620 .
  • the insulating member 600 and the side member 500 are provided with a plurality of projections 620 and one opening 511, and the plurality of projections 620 are inserted into one opening 511.
  • one protrusion 620 may be inserted into one opening 511 . That is, the insulating member 600 may have only one projection 620 and the one projection 620 may be inserted into one opening 511 .
  • a plurality of openings 511 corresponding to the plurality of projections 620 are provided in the side member 500 , and each projection 620 may be inserted into each opening 511 .
  • the insulating member 600 is attached to the side member 500 by inserting the projecting portion 620 into the opening 511. It may be fitted (press-fitted) into the portion 511 .
  • the second protrusion 622 of the protrusion 620 is inserted into the recess 512 of the side member main body 510 of the side member 500 by a snap-fit structure, so that the insulating member 600 extends in the Z-axis direction. It is arranged so that it can contact with the side member 500 on both sides.
  • FIG. 8C is a cross-sectional view showing a configuration in which insulating member 600 according to a modification of the present embodiment is attached to side member 500. As shown in FIG. FIG. 8C is a diagram corresponding to (c) of FIG.
  • the spacer 300 is inserted into the space 630 between the plurality of projecting portions 620, but a member other than the spacer 300 may be inserted into the space 630, or nothing may be inserted. may be configured.
  • the present invention can be realized not only as such a power storage device 10, but also as a combination of the side member 500 and the insulating member 600.
  • the present invention can be applied to a power storage device or the like having a power storage element such as a lithium ion secondary battery.
  • REFERENCE SIGNS LIST 10 power storage device 100 exterior body 200 power storage element 210 container 231 gas discharge valve 240 electrode terminal 300 spacer 400 end member 400a, 500a connection member 500 side member 510 side member main body 511, 611 opening 512 recess 513 projection 520 side member wall 521 Through hole 600 Insulating member 610 Insulating member main body 612 Flow path forming part 620 Protruding part 621 First protruding part 622 Second protruding part 630 Space 700 Bus bar

Abstract

L'invention concerne un dispositif de stockage d'énergie comprenant : un élément de stockage d'énergie ; une paire d'éléments d'extrémité avec lesquels l'élément de stockage d'énergie est pris en sandwich dans une première direction ; un élément latéral qui est disposé à l'opposé de l'élément de stockage d'énergie dans une deuxième direction croisant la première direction et qui relie la paire d'éléments d'extrémité ; et un élément d'isolation qui est disposé à l'opposé de l'élément de stockage d'énergie dans une troisième direction croisant la première direction et la deuxième direction. L'un de l'élément d'isolation et de l'élément latéral a une partie saillante faisant saillie vers l'autre, et l'autre a une partie évidée ou une partie d'ouverture à laquelle la partie saillante est insérée. En insérant la partie saillante vers la partie d'ouverture ou la partie évidée, l'élément d'isolation est fixé à l'élément latéral.
PCT/JP2022/028720 2021-08-02 2022-07-26 Dispositif de stockage d'énergie WO2023013466A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023540270A JPWO2023013466A1 (fr) 2021-08-02 2022-07-26

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-126831 2021-08-02
JP2021126831 2021-08-02

Publications (1)

Publication Number Publication Date
WO2023013466A1 true WO2023013466A1 (fr) 2023-02-09

Family

ID=85154482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/028720 WO2023013466A1 (fr) 2021-08-02 2022-07-26 Dispositif de stockage d'énergie

Country Status (2)

Country Link
JP (1) JPWO2023013466A1 (fr)
WO (1) WO2023013466A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140338995A1 (en) * 2013-05-20 2014-11-20 GM Global Technology Operations LLC Battery enclosure systems and methods
US20140356690A1 (en) * 2013-05-29 2014-12-04 Samsung Sdi Co., Ltd. Battery module
US20170125753A1 (en) * 2015-11-02 2017-05-04 Samsung Sdi Co., Ltd. Rechargeable battery module
JP2020522849A (ja) * 2018-01-12 2020-07-30 エルジー・ケム・リミテッド バッテリーモジュール、これを含むバッテリーパック及び自動車
WO2021024771A1 (fr) * 2019-08-07 2021-02-11 三洋電機株式会社 Dispositif d'alimentation électrique, véhicule électrique l'utilisant et dispositif de stockage d'énergie

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140338995A1 (en) * 2013-05-20 2014-11-20 GM Global Technology Operations LLC Battery enclosure systems and methods
US20140356690A1 (en) * 2013-05-29 2014-12-04 Samsung Sdi Co., Ltd. Battery module
US20170125753A1 (en) * 2015-11-02 2017-05-04 Samsung Sdi Co., Ltd. Rechargeable battery module
JP2020522849A (ja) * 2018-01-12 2020-07-30 エルジー・ケム・リミテッド バッテリーモジュール、これを含むバッテリーパック及び自動車
WO2021024771A1 (fr) * 2019-08-07 2021-02-11 三洋電機株式会社 Dispositif d'alimentation électrique, véhicule électrique l'utilisant et dispositif de stockage d'énergie

Also Published As

Publication number Publication date
JPWO2023013466A1 (fr) 2023-02-09

Similar Documents

Publication Publication Date Title
WO2021187114A1 (fr) Dispositif de stockage d'énergie
CN117397104A (zh) 蓄电装置
JP7427903B2 (ja) 蓄電装置
WO2023013466A1 (fr) Dispositif de stockage d'énergie
WO2023032562A1 (fr) Dispositif de stockage d'énergie
WO2023053831A1 (fr) Dispositif de stockage d'énergie
WO2022186136A1 (fr) Dispositif de stockage d'énergie
WO2022191231A1 (fr) Dispositif de stockage d'énergie
WO2024043254A1 (fr) Dispositif de stockage d'énergie
WO2022254937A1 (fr) Dispositif de stockage d'électricité
WO2022255162A1 (fr) Dispositif de stockage d'énergie
WO2022172941A1 (fr) Dispositif de stockage d'électricité
WO2023176752A1 (fr) Dispositif de stockage d'électricité et procédé de fabrication de dispositif de stockage d'électricité
WO2022255017A1 (fr) Dispositif de stockage d'énergie
WO2021145272A1 (fr) Dispositif de stockage d'énergie
WO2022255161A1 (fr) Dispositif de stockage d'électricité
WO2023223961A1 (fr) Dispositif de stockage d'énergie
WO2023171117A1 (fr) Dispositif de stockage d'énergie
WO2021187133A1 (fr) Dispositif de stockage d'énergie
WO2024043253A1 (fr) Dispositif de stockage d'énergie
WO2021045170A1 (fr) Dispositif de stockage d'énergie
JP2023028864A (ja) 蓄電装置
JP2023053834A (ja) 蓄電装置
JP2022123248A (ja) 蓄電装置
JP2022186359A (ja) 蓄電装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22852890

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023540270

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE