WO2017179768A1 - Batterie rechargeable - Google Patents

Batterie rechargeable Download PDF

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Publication number
WO2017179768A1
WO2017179768A1 PCT/KR2016/008011 KR2016008011W WO2017179768A1 WO 2017179768 A1 WO2017179768 A1 WO 2017179768A1 KR 2016008011 W KR2016008011 W KR 2016008011W WO 2017179768 A1 WO2017179768 A1 WO 2017179768A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
protective cover
plate
electrode assembly
secondary battery
Prior art date
Application number
PCT/KR2016/008011
Other languages
English (en)
Korean (ko)
Inventor
이원진
Original Assignee
삼성에스디아이(주)
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 삼성에스디아이(주) filed Critical 삼성에스디아이(주)
Publication of WO2017179768A1 publication Critical patent/WO2017179768A1/fr

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    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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
    • H01M50/155—Lids or covers characterised by the material
    • H01M50/157—Inorganic material
    • H01M50/159—Metals
    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/154—Lid or cover comprising an axial bore for receiving a central current collector
    • 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
    • H01M50/155—Lids or covers characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present invention relates to a secondary battery, and more particularly, to a secondary battery manufactured by sealing a case by bonding.
  • rechargeable batteries capable of charging and discharging such as lithium secondary batteries
  • conventional lead acid batteries nickel-cadmium (Ni-Cd) batteries, nickel-hydrogen (Ni-MH) batteries, and nickel-zinc batteries.
  • Ni-Cd nickel-cadmium
  • Ni-MH nickel-hydrogen
  • nickel-zinc batteries As the density is about three times higher and faster charging is possible, the field of application is expanding not only for the energy source of electric vehicles but also for the auxiliary power of smart grid.
  • the secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate are laminated with a separator interposed therebetween, a case in which a side is opened, and a case accommodating the electrode assembly together with an electrolyte through an opening, and one side opening of the case in a state in which the electrode assembly is accommodated. And a cap plate for closing the cap plate, and an electrode terminal coupled to the cap plate and electrically connected to the electrode assembly. An insulating case may be intervened to maintain electrical insulation between the electrode assembly and the cap plate.
  • the electrode assembly has a structure in which a positive electrode plate and a negative electrode plate, and separators disposed therebetween are sequentially stacked, and the separator is usually made larger than the two electrode plates to prevent energization between the positive electrode plate and the negative electrode plate. Therefore, the separator may be partially exposed in the axial direction of the roll in the case of the jelly-roll type, or in the thickness direction of the stacked positive and negative plates in the case of the stack type. to be.
  • the case and the cap plate need to seal the inner space in order to prevent leakage of electrolyte, etc., thus ensuring a reliable bonding through a process such as laser welding.
  • a process such as laser welding.
  • heat is generated, which causes a problem that the electrode assembly, especially the separator exposed between the two electrode plates, is damaged by the heat, so that electricity may be generated between the positive electrode plate and the negative electrode plate.
  • This problem can occur similarly when the insulating case covers the exposed separator, since the insulating case is only intended for the electrical insulation between the electrode assembly and the cap assembly.
  • An object of the present invention is to provide a secondary battery that can prevent the electrode assembly from being damaged by heat in the process of bonding the case by welding.
  • a secondary battery according to the present invention includes an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator, a case accommodating the electrode assembly in an open hexahedral shape, and a surface bonded to one opened surface of the case to externally attach the electrode assembly.
  • a cap assembly sealing against the cap assembly, and a protective cover made of a heat insulating material and disposed between the cap assembly and the electrode assembly in the case, the edge of the side close to the cap assembly being chamfered to form an evacuation portion. Can be.
  • an inner surface of the chamfered edge of the protective cover may be substantially parallel to the chamfered surface.
  • the electrode assembly may include a positive electrode tab and a negative electrode tab respectively extending from the positive electrode plate and the negative electrode plate, and the protective cover may have a through hole through which the positive electrode tab and the negative electrode tab respectively pass.
  • the secondary battery according to the present invention includes an electrode assembly including a positive electrode plate, a negative electrode plate, and a separator, a case in which the first part and the second part are bonded to each other and sealed to the outside, and the housing containing the electrode assembly; And a protective cover disposed between the case and the electrode assembly inside the case, wherein a region corresponding to a junction line of the case of one surface facing the case is recessed toward the electrode assembly to form an avoidance part. Can be.
  • one side of the avoiding part may be formed as a groove having a U-shaped or V-shaped cross section.
  • the electrode assembly may include a positive electrode tab and a negative electrode tab respectively extending from the positive electrode plate and the negative electrode plate, and the protective cover may have a through hole through which the positive electrode tab and the negative electrode tab respectively pass.
  • the other surface of the protective cover facing the electrode assembly may be formed as a protrusion having a shape in which a cross section matches a shape of one surface of the avoiding portion.
  • the protective cover has a hexahedron shape having one surface open and has one horizontal surface and four vertical surfaces, and the avoiding part may extend along four vertical surfaces of the protective cover, and the protective cover may have a hexahedron having one surface open.
  • the shape may have one horizontal plane and four vertical planes, and the avoidance portion may extend along an edge between the horizontal plane and the vertical plane.
  • the present invention even if the case is joined by welding, it is possible to prevent the electrode assembly housed therein from being damaged by heat.
  • FIG. 1 is an exploded perspective view of an embodiment of a secondary battery according to the present invention.
  • FIG. 2 is a partial cross-sectional view of the embodiment of FIG. 1.
  • FIG 3 is a cross-sectional view of a protective cover of another embodiment of a secondary battery according to the present invention.
  • FIG. 4 is a partial cross-sectional view of another embodiment of a secondary battery according to the present invention.
  • FIG. 5 is a cross-sectional view of a protective cover of another embodiment of a secondary battery according to the present invention.
  • FIG. 1 is an exploded perspective view of one embodiment of a secondary battery according to the present invention
  • FIG. 2 is a partial cross-sectional view of the embodiment of FIG. 1.
  • the electrode assembly 110 includes a positive electrode plate 111, a negative electrode plate 112, and a separator 113 interposed between the positive electrode plate 111 and the negative electrode plate 112.
  • the positive electrode plate 111, the negative electrode plate 112, and the separator 113 may be wound in the shape of a jelly roll.
  • the electrode assembly 110 may have another form such as a stacked type or a folded type.
  • the electrode assembly 110 is positioned between the positive electrode plate 111 coated with the positive electrode active material, the negative electrode plate 112 coated with the negative electrode active material, and the positive electrode plate 111 and the negative electrode plate 112 to prevent a short.
  • the separator 113 may allow the movement of lithium ions only.
  • the positive electrode plate 111 may be an aluminum (Al) foil
  • the negative electrode plate 112 may be a copper (Cu) foil
  • the separator 113 may be polyethylene (PE) or polypropylene (PP), but the present invention is limited to these materials. It doesn't happen.
  • the positive electrode tab 114 protruding a predetermined length upward may be connected to the positive electrode plate 111, and the negative electrode tab 115 protruding a predetermined length upward may also be connected to the negative electrode plate 112.
  • the positive electrode tab 114 may be made of aluminum (Al) and the negative electrode tab 115 may be made of nickel (Ni), but the present invention is not limited thereto.
  • the case is divided into two parts, the first part 120 and the second part 130, and these two parts are later joined to each other.
  • the first part 120 has an opening at one side thereof.
  • 120a is formed in a substantially rectangular parallelepiped shape, and the second portion 130 is coupled to the opening 120a of the first portion 130.
  • the first portion 120 of the case is spaced apart from each other by a pair of long sides 121 having a relatively large area, and a pair of short sides having a relatively small area with respect to the pair of long sides 121.
  • a bottom portion 123 is formed at the lower portion of the portion 122, the long side portion 121 and the short side portion 122 perpendicular to these portions.
  • the first part 120 of the case is manufactured by a deep drawing method, and the long side part 121, the short side part 122, and the bottom part 123 are integrally formed.
  • the first portion 120 may be formed using any one selected from steel, aluminum, or equivalents thereof, but the material of the first portion 120 is not limited thereto.
  • An electrolyte (not shown) is accommodated together with the electrode assembly 110 in the first portion 120.
  • This electrolyte serves as a moving medium of lithium ions generated by the electrochemical reaction in the positive electrode plate 111 and the negative electrode plate 112 inside the battery 100 during charge and discharge, which is a mixture of lithium salts and high purity organic solvents. It may be a water-based organic electrolyte solution.
  • the electrolyte may be a polymer using a polymer electrolyte.
  • the second portion 130 of the case is coupled to the upper portion of the first portion 120 serves to prevent the electrode assembly 110 from escaping to the outside and the electrolyte is not leaked, the upper portion of the first portion 120 Also referred to as cap assembly in that it covers.
  • the cap assembly 130 fits into the opening 120a of the first portion 120 of the case and both are joined to each other by laser welding or the like.
  • the resulting bond line is shown as WL in FIG. 2.
  • the cap assembly 130 is formed by sequentially combining the cap plate 131, the insulating plate 132, and the terminal plate 133.
  • the cap plate 131 is formed of a metal plate having a size and a shape corresponding to the top opening 120a of the first portion 120, and preferably formed of aluminum or an aluminum alloy.
  • a first terminal hole 131a is formed in the center of the cap plate 131, and an electrolyte injection hole 131b for electrolyte injection is formed at one side.
  • An electrode terminal 134 which will be described later, is inserted into the first terminal hole 131a, and a tubular gasket 135 is interposed for insulation between the electrode terminal 134 and the cap plate 131.
  • the electrolyte injection hole 131b is injected with electrolyte through the electrolyte injection hole 131b after the cap assembly 130 is assembled to the upper opening 120a of the case 110, and the plug 136 after the electrolyte is injected. It is sealed by).
  • the insulating plate 132 may be formed of an insulating material such as the gasket 135 and may be coupled to the bottom surface of the cap plate 131.
  • the insulation plate 132 extends downward from the edge of the bottom plate 132a and the bottom plate 132a having the through hole 132b formed in a portion corresponding to the first terminal hole 131a of the cap plate 131.
  • a fixing part 132c a fixing part 132c.
  • the through hole 132b is inserted with an electrode terminal 134 penetrating through the first terminal hole 131a when the insulating plate 132 and the cap plate 131 are coupled to each other.
  • the fixing part 132c extends to surround both long sides and one short side of the terminal plate 133 so that the terminal plate 133 coupled to the bottom surface does not move relative to the insulating plate 132.
  • the shape of the insulating plate 132 may be variously modified according to the shape of the terminal plate 133.
  • the terminal plate 133 may be formed of nickel (Ni) or a nickel alloy metal and may be coupled to the lower surface of the insulating plate 132.
  • the terminal plate 133 has a size corresponding to the area of the bottom plate 132a from the first portion 1332 and the first portion 1332 seated on the bottom surface of the bottom plate 132a of the insulating plate 132. It is formed to have a substantially 'T' shape, including a second portion 1331 that extends to have a width greater than the width of the first portion 1332.
  • the second portion 1331 serves to disperse the heat of resistance due to the flow of current that may be concentrated in the first portion 1332.
  • a second terminal hole 1334 is formed in a portion corresponding to the through hole 132b of the insulating plate 132. Accordingly, the electrode terminal 134 is electrically connected to the negative electrode tab 115 through the cap plate 131, the insulating plate 132, and the terminal plate 132. The upper portion of the electrode terminal 134 is rotated and pressed by a spinning device (not shown) to be inserted into the first terminal hole 131a, the through hole 132b, and the second terminal hole 1334, and finally the terminal plate 133. ) Is fastened.
  • the electrode terminal 134 when the electrode terminal 134 is fitted into the first terminal hole 131a, the through hole 132b, and the second terminal hole 1334 by rotation and pressure, the electrode terminal 134 may be disposed in the second terminal hole 1334.
  • An end portion of 134 is fastened to the terminal plate 133 while spreading in the peripheral direction of the second terminal hole 1334.
  • the anti-rotation groove 1333 is formed in the peripheral area of the second terminal hole 1334 so that the terminal plate 132 is fixed without being rotated by the electrode terminal 134 spreading in the peripheral direction of the second terminal hole 1334. can do.
  • the contact area between the electrode terminal 134 and the terminal plate 133 is increased to increase the electrode terminal 134.
  • the fixing force between the terminal plate 133 can be improved, and the terminal plate 133 can be prevented from being rotated by the fixing force.
  • the electrode terminal 134 is inserted into the first terminal hole 131a, the through hole 132b, and the second terminal hole 1334 formed in the cap plate 131, the insulating plate 132, and the terminal plate 133, respectively.
  • the terminal plate 133 is electrically connected to the negative electrode tab 115 of the electrode assembly 110.
  • the electrode terminal 134 is electrically insulated from the cap plate 131 by the gasket 135 when the electrode terminal 134 is inserted into the first terminal hole 131a of the cap plate 131.
  • the electrode terminal 134 is generally formed as a negative electrode terminal, but may be formed in the reverse direction depending on the structure of the secondary battery. That is, the positive electrode tab 114 may be connected to the electrode terminal 134 according to the method of forming the electrode assembly 110.
  • the insulating case 140 is formed between the electrode assembly 110 and the cap assembly 130 inside the case 120.
  • the insulating case 140 has a positive electrode tab hole 141 and a negative electrode tab hole 142 formed therein, and the positive electrode tab 124 is connected to the cap plate 131 through the positive electrode tab hole 141.
  • the negative electrode tab 125 is connected to the terminal plate 133 through).
  • the protective cover 200 may be disposed between the insulating case 140 and the case inside the case. As long as the insulating case 140 provides electrical insulation between the electrode assembly 110 and the case including the cap assembly 130, it is possible for the protective cover 200 to perform the functions of the insulating case 140 together. If so, the insulating case 140 may be omitted or integrated into the protective cover 200.
  • the protective cover 200 has a rectangular parallelepiped container shape in which one surface (a reference plane in the drawing direction) is opened, and a part of the electrode assembly 130 is disposed in the protective cover 200 through the opened surface. . In the example of FIG. 1, the protective cover 200 has a cap shape and is disposed to partially cover the electrode assembly 130 and the insulating case 140 from above. In this case, the negative electrode tab through hole 201 and the positive electrode tab through hole 202 may be formed in the protective cover 200 so that the positive electrode tab 114 and the negative electrode tab 115 may pass through the protective cover 200, respectively. have.
  • the protective cover 200 is made of a heat insulating material, which is to protect the electrode assembly 130, in particular the separator 113 from heat generated when the junction line WL of the case is formed.
  • the protective cover 200 has four corners closest to the junction line WL of the case, that is, the corners of the upper corners are chamfered based on the drawing directions of FIGS. 1 and 2, respectively.
  • the space outside the protective cover 200 formed by the chamfer is hereinafter referred to as the avoidance part 200a.
  • the avoidance part 200a secures an empty space between the protective cover 200 and the junction line WL of the case. The direct contact with both is suppressed as much as possible, thereby making the heat protection effect of the electrode assembly 110 stronger. Meanwhile, in FIG. 1 and FIG.
  • the protective cover 200 is illustrated as a shape having one horizontal plane and four vertical planes extending vertically downward from the horizontal plane, and the shape of the protective cover 200 is necessarily limited thereto. In some cases, the shape may be flat. In any case, the inner surface of the protective cover 200 corresponding to the chamfered edges of the protective cover 200 is formed so as to prevent a difference in the thickness of the protective cover 200 by forming the avoiding part 200. It is desirable to be substantially parallel to the formed surface.
  • FIG. 3 shows sectional drawing of the example which changed the shape of the protective cover from the example of FIG. 1 and FIG.
  • the protective cover 210 has a rectangular parallelepiped shape in which one surface (the lower surface in the reference direction) is opened, that is, a shape having one horizontal plane and four vertical planes extending vertically therefrom, as shown in the example of FIG.
  • the junction line WL is formed closest to WL, for example, as shown in FIG. 2, all four corners of the upper side of the protective cover 200 are recessed toward the electrode assembly 130 to form the avoidance part 210a.
  • the avoiding part 210a has a shape of a groove formed along the upper edge of the protective cover 200, and the groove may be a groove having a U-shaped cross section as illustrated.
  • the projection toward the electrode assembly 130 of the avoidance portion 210a has a U-shaped projection, that is, a cross-section U. It is preferable to form a projection having a shape matching with the groove having a shape.
  • the second part of the case that is, the cap assembly 130 has a rectangular parallelepiped shape in which one surface is opened instead of a plate shape, so that the joining line WL is further downward relative to the drawing direction compared to the example of FIG. 2. It is moved and formed.
  • the joint line WL may be formed at various positions as necessary.
  • the avoiding part 220a of the protective cover 220 may be formed at a position corresponding to the transferred joint line WL.
  • the protective cover 220 has a shape having a horizontal plane and four vertical planes extending vertically downward from the horizontal plane, and the avoidance unit 220a is formed by being recessed along these four vertical planes and has a U-shaped cross section. It may be provided in the form of an in groove. As in the previous example, the portion in which the avoidance portion 220a is formed becomes thinner than the other portions, so that the projections having the cross-section U-shape are formed on the surface facing the electrode assembly 130 of the avoidance portion 220a. It is preferable.
  • the protective cover 200 has a shape having one horizontal plane and four vertical planes extending vertically from the horizontal plane as in the example of FIG. 4, and the avoidance part 230a formed along the four vertical planes has a cross-sectional shape. It is a V-shaped groove. Also in this example, in order to ensure a uniform thickness of the protective cover 230, it is preferable to form a projection having a V-shaped cross section on the surface facing the electrode assembly 130 of the portion where the avoidance portion 230a is formed.
  • the case and the protective cover are all illustrated as having a substantially rectangular parallelepiped shape, but may not be a rectangular parallelepiped including a parallelepiped, and may further have other three-dimensional shapes such as cylinders, prisms, and ellipsoids.
  • geometric terms such as hexahedron, cuboid, parallelepiped, right angle, etc. are used, these terms are for convenience of explanation only and are not to be interpreted according to the geometric definition of the terms in a strict sense. It should be interpreted to the extent that it can be seen as such.
  • expressions such as vertical and horizontal are only relative expressions based on the direction of the drawings.

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

Abstract

La présente invention concerne une batterie rechargeable qui est fabriquée de telle manière qu'un boîtier soit scellé par collage. La batterie rechargeable peut comprendre : un ensemble d'électrodes comprenant une plaque de cathode, une plaque d'anode et un séparateur ; un boîtier ayant une forme hexaédrique avec un côté ouvert pour loger l'ensemble d'électrodes ; un ensemble de capuchon qui est collé au côté ouvert du boîtier et scelle l'ensemble d'électrode contre l'extérieur ; et un couvercle de protection qui est constitué d'un matériau d'isolation thermique et est disposé entre l'ensemble de capuchon et l'ensemble d'électrodes à l'intérieur du boîtier, un bord du couvercle de protection à proximité de l'ensemble de capuchon étant chanfreiné ou une région du côté faisant face au boîtier correspondant à la ligne de collage du boîtier étant évidée vers l'ensemble d'électrodes, de manière à former une section de mise hors prise.
PCT/KR2016/008011 2016-04-11 2016-07-22 Batterie rechargeable WO2017179768A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160044356A KR102518352B1 (ko) 2016-04-11 2016-04-11 이차 전지
KR10-2016-0044356 2016-04-11

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WO2017179768A1 true WO2017179768A1 (fr) 2017-10-19

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WO2023130235A1 (fr) * 2022-01-05 2023-07-13 宁德时代新能源科技股份有限公司 Élément de batterie et procédé et dispositif de fabrication associés, batterie et dispositif électrique
WO2023150080A3 (fr) * 2022-02-03 2023-09-14 South 8 Technologies, Inc. Capuchon pour cellule électrochimique
WO2024011420A1 (fr) * 2022-07-12 2024-01-18 Techtronic Cordless Gp Ensemble électrode pour élément de batterie cylindrique

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US20100136387A1 (en) * 2009-06-12 2010-06-03 Tesla Motors, Inc. Cell cap assembly with recessed terminal and enlarged insulating gasket
KR20110000994A (ko) * 2009-06-29 2011-01-06 삼성에스디아이 주식회사 이차 전지
KR20110010573A (ko) * 2009-07-24 2011-02-01 롬 앤드 하스 일렉트로닉 머티리얼스 씨엠피 홀딩스, 인코포레이티드 다관능성 연마 패드
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WO2023130235A1 (fr) * 2022-01-05 2023-07-13 宁德时代新能源科技股份有限公司 Élément de batterie et procédé et dispositif de fabrication associés, batterie et dispositif électrique
WO2023150080A3 (fr) * 2022-02-03 2023-09-14 South 8 Technologies, Inc. Capuchon pour cellule électrochimique
WO2024011420A1 (fr) * 2022-07-12 2024-01-18 Techtronic Cordless Gp Ensemble électrode pour élément de batterie cylindrique

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