WO2018159180A1 - Batterie rechargeable - Google Patents

Batterie rechargeable Download PDF

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Publication number
WO2018159180A1
WO2018159180A1 PCT/JP2018/002630 JP2018002630W WO2018159180A1 WO 2018159180 A1 WO2018159180 A1 WO 2018159180A1 JP 2018002630 W JP2018002630 W JP 2018002630W WO 2018159180 A1 WO2018159180 A1 WO 2018159180A1
Authority
WO
WIPO (PCT)
Prior art keywords
secondary battery
current collector
negative electrode
gasket
lid
Prior art date
Application number
PCT/JP2018/002630
Other languages
English (en)
Japanese (ja)
Inventor
伸芳 田中
池田　幸太郎
佐藤　豊
和昭 浦野
博昭 江川
佳佑 澤田
Original Assignee
日立オートモティブシステムズ株式会社
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 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Priority to JP2019502513A priority Critical patent/JP6892495B2/ja
Publication of WO2018159180A1 publication Critical patent/WO2018159180A1/fr

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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • 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

  • a prismatic secondary battery houses a power storage element, a current collector connected to the power storage element, the power storage element and the current collector, and is provided with an opening.
  • a battery container, a lid that closes the opening of the battery container, the external terminal is disposed, and a connection terminal that connects the external terminal and the current collector plate, and has a gasket around the axis of the connection terminal
  • the gasket is provided with a pair of narrow portions
  • the lid or the current collector plate is provided with a tapered portion disposed between the pair of narrow portions.
  • the present application in addition to the prior art sealing technique in which the gasket is pressed in the caulking direction by the unevenness provided on the lid or flange portion, the present application further applies a pressing force due to the flaking of the gasket to the shaft portion of the connection terminal.
  • the function of the shaft seal can be obtained.
  • longer-term sealing performance can be ensured than before.
  • the wound electrode group 3 (see FIG. 2) is built in the battery can 1, and the opening 1 a of the battery can 1 is sealed by the lid 6.
  • the lid 6 has a substantially rectangular flat plate shape, and is welded so as to close the opening 1 a of the battery can 1 to seal the battery can 1.
  • the lid 6 is provided with a positive electrode output portion 14 fixed to the lid 6 by an insulating member 5 by insert molding and a negative electrode output portion 12.
  • the wound electrode group 3 is charged via the positive electrode output unit 14 and the negative electrode output unit 12, and power is supplied to the external load.
  • the lid 6 is integrally provided with a gas discharge valve 10, and when the pressure in the battery container rises, the gas discharge valve 10 opens to discharge gas from the inside, and the pressure in the battery container is reduced. Thereby, the safety of the prismatic secondary battery 100 is ensured.
  • the battery can 1 of the rectangular secondary battery 100 includes a rectangular bottom surface 1d, a wide surface 1b rising from a pair of long sides of the bottom surface 1d, a narrow surface 1c rising from a pair of short sides of the bottom surface 1d, and the wide surface 1b. And an opening 1a opened upward at the upper end of the narrow surface 1c.
  • a wound electrode group 3 is accommodated in the battery can 1 via an insulating protective film 2.
  • the wound electrode group 3 is formed by winding a strip-like electrode into a flat shape, and is formed continuously between a pair of curved portions facing each other and having a semicircular cross section, and the pair of curved portions. And a flat portion.
  • the wound electrode group 3 is inserted into the battery can 1 from one curved portion side so that the winding axis direction is along the lateral width direction of the battery can 1 and faces the bottom surface 1d, and the other curved portion side is an opening. It is arranged on the 1a side.
  • a gasket 5 and an insulating plate 7 are provided on the battery lid 6. It has been. Moreover, after injecting electrolyte solution into the battery can 1 from the injection hole 9, the injection stopper 11 is joined to the battery cover 6 by laser welding to seal the injection hole 9, and the flat wound secondary battery 100 is sealed.
  • the battery lid 6 is provided with a liquid injection hole 9 for injecting an electrolytic solution into the battery container.
  • the liquid injection hole 9 is an injection stopper after the electrolytic solution is injected into the battery container. 11 is sealed.
  • a non-aqueous electrolytic solution in which a lithium salt such as lithium hexafluorophosphate (LiPF 6 ) is dissolved in a carbonic acid ester-based organic solvent such as ethylene carbonate is used. Can be applied.
  • the positive external terminal 14 and the negative external terminal 12 have a weld joint that is welded to a bus bar or the like.
  • the welded joint has a flat surface disposed above the gasket 5 and parallel to the outer surface of the battery lid 6, and a bus bar or the like is brought into contact with the flat surface to be welded. .
  • the insulating protective film 2 is made of, for example, a single sheet made of synthetic resin such as PP (polypropylene) or a plurality of film members, and is parallel to the flat surface of the wound electrode group 3 and orthogonal to the winding axis direction. It has a length that can be wound around the direction as the winding center.
  • FIG. 2 is an exploded perspective view showing a state in which a part of the wound electrode group is developed.
  • the wound electrode group 3 is configured by winding a negative electrode 32 and a positive electrode 34 in a flat shape with separators 33 and 35 interposed therebetween.
  • the outermost electrode is the negative electrode 32, and separators 33 and 35 are wound further outside.
  • the separators 33 and 35 have a role of insulating between the positive electrode 34 and the negative electrode 32.
  • the portion where the negative electrode mixture layer 32b of the negative electrode 32 is applied is larger in the width direction than the portion of the positive electrode 34 where the positive electrode mixture layer 34b is applied, so that the portion where the positive electrode mixture layer 34b is applied is
  • the negative electrode mixture layer 32b is always sandwiched between the coated portions.
  • the positive foil exposed portion 34c and the negative foil exposed portion 32c are bundled at a plane portion and connected by welding or the like.
  • the separators 33 and 35 are wider than the portion where the negative electrode mixture layer 32b is applied in the width direction, but are wound at positions where the metal foil surface at the end is exposed at the positive electrode foil exposed portion 34c and the negative electrode foil exposed portion 32c. Therefore, it does not hinder bundle welding.
  • the positive electrode 34 has a positive electrode active material mixture on both sides of a positive electrode foil that is a positive electrode current collector, and a positive electrode foil exposed portion where no positive electrode active material mixture is applied to one end in the width direction of the positive electrode foil 34c is provided.
  • the negative electrode 32 has a negative electrode active material mixture on both sides of a negative electrode foil that is a negative electrode current collector, and a negative electrode foil exposed portion where no negative electrode active material mixture is applied to the other end in the width direction of the negative electrode foil 32c is provided.
  • the positive electrode foil exposed portion 34c and the negative electrode foil exposed portion 32c are regions where the metal surface of the electrode foil is exposed, and are wound so as to be disposed on one side and the other side in the winding axis direction.
  • negative electrode 32 10 parts by weight of polyvinylidene fluoride (hereinafter referred to as PVDF) is added as a binder to 100 parts by weight of amorphous carbon powder as a negative electrode active material, and N as a dispersion solvent.
  • NMP kneading methylpyrrolidone
  • amorphous carbon is used as the negative electrode active material, but the present invention is not limited to this.
  • Natural graphite capable of inserting and removing lithium ions and various artificial graphite materials Carbonaceous materials such as coke, compounds such as Si and Sn (for example, SiO, TiSi 2 etc.), or composite materials thereof may be used. It is not limited.
  • the positive electrode 34 10 parts by weight of flaky graphite as a conductive material and 10 parts by weight of PVDF as a binder are added to 100 parts by weight of lithium manganate (chemical formula LiMn 2 O 4 ) as a positive electrode active material.
  • a positive electrode mixture was prepared by adding and kneading NMP as a dispersion solvent. This positive electrode mixture was applied to both surfaces of an aluminum foil (positive electrode foil) having a thickness of 20 ⁇ m leaving a welded portion (positive electrode uncoated portion). Thereafter, a positive electrode 31 having a thickness of 90 ⁇ m in the thickness of the positive electrode active material coating portion not including an aluminum foil was obtained through drying, pressing, and cutting processes.
  • lithium manganate is used as the positive electrode active material
  • other lithium manganate having a spinel crystal structure or a lithium manganese composite oxide or layered in which a part is substituted or doped with a metal element A lithium cobalt oxide or lithium titanate having a crystal structure, or a lithium-metal composite oxide obtained by substituting or doping a part thereof with a metal element may be used.
  • PVDF polytetrafluoroethylene
  • polyethylene polyethylene
  • polystyrene polybutadiene
  • butyl rubber nitrile rubber
  • styrene Use polymers such as butadiene rubber, polysulfide rubber, nitrocellulose, cyanoethyl cellulose, various latexes, acrylonitrile, vinyl fluoride, vinylidene fluoride, propylene fluoride, chloroprene fluoride, acrylic resins, and mixtures thereof.
  • PTFE polytetrafluoroethylene
  • polystyrene polystyrene
  • polybutadiene butyl rubber
  • nitrile rubber styrene
  • styrene Use polymers such as butadiene rubber, polysulfide rubber, nitrocellulose, cyanoethyl cellulose, various latexes, acrylonitrile, vinyl fluoride, vinylidene fluoride, propylene fluoride, chlor
  • the shaft core for example, a structure obtained by winding a resin sheet having higher bending rigidity than any of the positive electrode foil, the negative electrode foil, and the separators 33 and 35 can be used.
  • FIG. 3 shows a schematic cross-sectional view during caulking in the first embodiment.
  • this embodiment demonstrates the negative electrode side as a representative, naturally this embodiment can be applied even if it is a positive electrode side.
  • FIG. 3 shows a state in which the parts before caulking are overlapped with each other in FIG. 3A, a state in which the gasket 5 is pressed with the compression load 110 in the overlapped state in FIG.
  • FIG. 3C shows a state in which the end of the connection terminal 12a is expanded in a taper shape while being pressed in the state shown in FIG. 3C. It is FIG.3 (d) of the state crimped.
  • the gasket 5 is provided with a narrow portion 55a formed by the battery cover protrusion 6a, and a narrow portion 55b formed by the insulating plate protrusion 7aa, the connection terminal 12a, and the battery cover 6. It is done.
  • connection terminal 12a In the state where the compressive load 110 shown in FIG. 3 (b) is applied, as shown in FIG. 3 (c), the end of the connection terminal 12a is pushed into a tapered shape by, for example, a 90 ° tapered punch not shown. By spreading, a negative electrode connecting portion temporary caulking 12aa is formed at the end of the connecting terminal 12a, and the gasket 5a is held in a compressed state.
  • the negative electrode connection terminal temporary caulking 12aa shown in FIG. 3C is caulked to the negative electrode connecting portion 12aaa which is the target shape by using, for example, a dome-shaped punch (not shown).
  • Gasket pool a part 5a generates surface pressure on the contact surface with connection terminal 12a and the contact surface with battery cover protrusion 6a in a compressed state, but battery cover taper part 6b is the axis of negative electrode connection part 12a.
  • the battery lid taper portion compressive load 110d is formed in a taper angle that enables the load to be generated.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression load 110d for a long time.
  • the protrusion part 6a may be arrange
  • the electricity storage element (3), the current collector plate (24, 44) connected to the electricity storage element (3), the electricity storage element (3) and the current collector plate (24, 44) are accommodated,
  • the lid (6) is provided with a tapered portion (6b) disposed between the pair of narrow portions.
  • the gasket can be gathered in a pair of narrow portions and the meat can be pressed against the connection terminals (12a, 14a), so that the seal at the shaft portion can be realized for a long time. be able to. Therefore, leakage from the connection terminals 12a and 14a due to a decrease in sealing performance can be eliminated.
  • the tapered portion (6b) is provided on the lid (6) side, and at a position corresponding to the narrow portion (55a) on one side of the pair of narrow portions (55a, 55b). A projection (6a) protruding from the lid (6) is formed. In the present embodiment, the protrusion (6a) is provided apart from the tapered portion (6b).
  • Example 2 differs from Example 1 in that the end on the external terminal side of the taper portion 6b of the battery lid 6 forms the end of an opening through which the connection terminal 12a of the battery lid 6 is inserted ( In Example 1, there was a flat portion connected from the tapered portion 6b.)
  • FIG. 4 shows a schematic cross-sectional view after caulking in the second embodiment. Similarly to Example 1, a caulking process is performed in which the negative electrode connection portion temporary caulking 12aa is formed and the negative electrode connection portion caulking 12aa is finally formed in a state where the gasket 5 is pressed with the compression load 110 from the state where the components are overlapped.
  • the gasket pool a portion 5a generates a surface pressure on the contact surface with the connection terminal 12a and the contact surface with the battery lid protrusion 6a in a compressed state.
  • the battery lid taper portion 6b The battery cover taper portion compressive load 110d is formed at a taper angle that enables the negative electrode connection portion 12a to be axially oriented.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression load 110d for a long time.
  • the end of the tapered portion (6b) is formed at a position corresponding to the narrow portion (55b) on the other side of the pair of narrow portions (55a, 55b). To do. By adopting such a configuration, the gasket puddle a portion 5a can be pushed in a wider area, so that the reliability becomes higher.
  • Example 3 Next, Example 3 will be described.
  • the third embodiment is different from the first embodiment in that the tapered portion 6b of the battery lid 6 and the protruding portion 6a of the battery lid 6 are provided continuously.
  • FIG. 5 shows a schematic cross-sectional view after caulking in the third embodiment.
  • the caulking process of forming the negative electrode connection portion temporary caulking 12aa and finally forming the negative electrode connection portion caulking 12aaa from the state where the components are overlapped with the gasket 5 being pressed with the compression load 110 is performed. Do.
  • the battery lid taper portion 6b is formed at a taper angle that enables the battery lid taper portion compression load 110d to be generated in the direction of the axis of the negative electrode connection portion 12a.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression load 110d for a long time.
  • the protruding portion (6a) is provided continuously from the tapered portion (6b).
  • the gasket 5 can easily flow to the gasket puddle a portion 5a facing the taper portion, and the gasket 5 can be prevented from escaping into the gasket puddle b portion 5b.
  • Example 4 Next, Example 4 will be described.
  • the fourth embodiment differs from the first embodiment in that a protrusion 24a is provided on the current collector plate 24 side.
  • FIG. 7 shows a schematic cross-sectional view after caulking in the fourth embodiment.
  • the caulking process of forming the negative electrode connection portion temporary caulking 12aa and finally forming the negative electrode connection portion caulking 12aaa from the state where the components are overlapped with the gasket 5 being pressed with the compression load 110 is performed. Do.
  • the gasket 5 can flow in the axial direction by pressing the gasket 5 by caulking, and the gasket 5 can be prevented from escaping into the gasket pool b portion 5b. .
  • the effect is acquired similarly to the structure which has the separation
  • the battery lid taper portion 6b is formed at a taper angle that enables the battery lid taper portion compression load 110d to be generated in the direction of the axis of the negative electrode connection portion 12a.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression load 110d for a long time.
  • protrusions protruding from the current collector plates (24, 44) are located at positions corresponding to the narrow portions (55a, 55b) on one side. It is formed. Even if it is a case where it is such a structure, the effect similar to Example 1 can be achieved.
  • Example 5 Next, Example 5 will be described.
  • the fifth embodiment is different from the first embodiment in that the tapered portion 6b is opposed to the protruding plate 24a on the current collecting plate 24 side.
  • FIG. 8 shows a schematic cross-sectional view after caulking in the fifth embodiment.
  • the caulking process of forming the negative electrode connection portion temporary caulking 12aa and finally forming the negative electrode connection portion caulking 12aaa from the state where the components are overlapped with the gasket 5 being pressed with the compression load 110 is performed. Do.
  • the gasket pool portion a 5a Due to the increase in the compression amount by the negative electrode current collector taper portion opposing projection 24b, the gasket pool portion a 5a has a higher contact state with the connection terminal 12a and the battery lid projection 6a than in the first and second embodiments.
  • the contact pressure is generated on the contact surface with the negative electrode current collector plate taper portion protrusion 24b.
  • the battery lid taper portion 6b is formed at a taper angle that enables the battery lid taper portion compression load 110d to be generated in the direction of the axis of the negative electrode connection portion 12a.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression load 110d for a long time.
  • the present embodiment is characterized in that a protrusion is provided on the current collecting plate portion facing the tapered portion.
  • a protrusion is provided on the current collecting plate portion facing the tapered portion.
  • Example 6 differs from the first embodiment in that the shafts of the connection terminals 12a and 14a are thickened on the side of the current collector plate 24 and aim for the same effect as the fifth embodiment.
  • FIG. 9 shows a schematic cross-sectional view after caulking in the sixth embodiment.
  • the negative electrode connecting portion temporary caulking 12aa is formed in a state in which the gasket 5 is pressed with the compressive load 110 from the overlapped parts, and finally the negative electrode connecting portion caulking 12aaa is formed. Perform the process.
  • the battery lid taper portion 6b faces the outer diameter B portion 12ac of the negative electrode connection portion 12a, and the increase in the compression amount due to the fact that the outer diameter A portion 12ab is larger than the other outer diameter A portion 12ab.
  • a compressed state higher than 2 surface pressure is generated on the contact surface with the connection terminal 12a, the contact surface with the battery lid protrusion 6a, and the contact surface with the negative electrode current collector plate protrusion 24a.
  • the battery lid taper portion 6b is formed at a taper angle that allows the battery lid taper portion compression surface pressure 110d to be generated in the direction of the axis of the negative electrode connection portion 12a.
  • the battery lid taper portion 6b can ensure long-term sealing performance by stably generating the compression surface pressure 110d for a long time.
  • the examples are briefly summarized above.
  • the present embodiment is characterized in that the diameter (12ac) of the connection terminal facing the tapered portion (6b) is larger than the other diameter (12ab).
  • Examples 1, 2, 3, 4, 5, and 6, only the configuration on the negative electrode side was shown.
  • the present embodiment is not limited to the negative electrode side, and the configuration on which at least one of the positive electrode side and the negative electrode side is applied.
  • the positive electrode side has the same configuration as the negative electrode side.
  • the taper shape was demonstrated to the example in the Example, R shape may be sufficient and it can solve similarly the subject which this application tends to solve.
  • the shaft portions of the connection terminals 12a and 14a opposed to the tapered portion 6b may be provided with irregularities by rolling or cutting. With such a configuration, longer-term sealing performance can be improved.
  • the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed.
  • the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described.
  • a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.

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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)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Il est possible d'obtenir une fonction d'étanchéité d'arbre en amenant une force de pression à agir, à partir de la partie épaisse d'un joint d'étanchéité, sur une partie d'arbre d'une borne de connexion, et en raison de cette configuration, l'invention concerne une batterie rechargeable rectangulaire capable de maintenir une étanchéité sûre pendant une période de temps plus longue que celle obtenue avec des batteries classiques. Selon un mode de réalisation de la présente invention, une batterie rechargeable secondaire rectangulaire comprend : un élément d'accumulation d'électricité ; un collecteur de courant connecté à l'élément d'accumulation d'électricité ; un boîtier de batterie qui contient l'élément d'accumulation d'électricité et le collecteur de courant et qui est pourvu d'une ouverture ; un couvercle qui ferme l'ouverture ménagée dans le boîtier de batterie et comprend une borne externe disposée sur celui-ci ; et une borne de connexion qui connecte la borne externe et le collecteur de courant. Un joint d'étanchéité est disposé autour de l'axe de la borne de connexion, le joint d'étanchéité est pourvu d'une paire de sections de rétrécissement de largeur, et le couvercle ou le collecteur de courant est pourvu d'une section conique disposée entre la paire de sections de rétrécissement de largeur.
PCT/JP2018/002630 2017-02-28 2018-01-29 Batterie rechargeable WO2018159180A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019502513A JP6892495B2 (ja) 2017-02-28 2018-01-29 二次電池

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017035667 2017-02-28
JP2017-035667 2017-02-28

Publications (1)

Publication Number Publication Date
WO2018159180A1 true WO2018159180A1 (fr) 2018-09-07

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Cited By (8)

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JP2020187877A (ja) * 2019-05-13 2020-11-19 ダイキン工業株式会社 電池の封止構造
JP2020187878A (ja) * 2019-05-13 2020-11-19 ダイキン工業株式会社 電池の封止構造
CN114649652A (zh) * 2020-12-21 2022-06-21 泰星能源解决方案有限公司 电池及其制造方法
CN115004461A (zh) * 2020-02-28 2022-09-02 松下知识产权经营株式会社 蓄电设备
WO2022254024A1 (fr) * 2021-06-04 2022-12-08 Northvolt Ab Batterie secondaire cylindrique ayant une paroi de trou de boîte façonnée et son procédé d'assemblage
EP4199204A1 (fr) * 2021-12-16 2023-06-21 Schott Ag Partie de boîtier pour un dispositif de stockage électrique et dispositif de stockage électrique
EP4432427A1 (fr) * 2022-11-11 2024-09-18 Toyota Jidosha Kabushiki Kaisha Cellule de stockage d'énergie
KR102717621B1 (ko) * 2019-05-13 2024-10-16 다이킨 고교 가부시키가이샤 전지의 실링 구조

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JP2009087729A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 密閉型電池
JP2014007119A (ja) * 2012-06-27 2014-01-16 Toyota Motor Corp 電池
JP2016100323A (ja) * 2014-11-26 2016-05-30 トヨタ自動車株式会社 電池及びその製造方法
JP2016207510A (ja) * 2015-04-23 2016-12-08 日立オートモティブシステムズ株式会社 角形二次電池

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JP2009087729A (ja) * 2007-09-28 2009-04-23 Toshiba Corp 密閉型電池
JP2014007119A (ja) * 2012-06-27 2014-01-16 Toyota Motor Corp 電池
JP2016100323A (ja) * 2014-11-26 2016-05-30 トヨタ自動車株式会社 電池及びその製造方法
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Cited By (20)

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Publication number Priority date Publication date Assignee Title
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JP7288187B2 (ja) 2019-05-13 2023-06-07 ダイキン工業株式会社 電池の封止構造
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