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WO2018004157A1 - Batterie secondaire - Google Patents

Batterie secondaire Download PDF

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Publication number
WO2018004157A1
WO2018004157A1 PCT/KR2017/006206 KR2017006206W WO2018004157A1 WO 2018004157 A1 WO2018004157 A1 WO 2018004157A1 KR 2017006206 W KR2017006206 W KR 2017006206W WO 2018004157 A1 WO2018004157 A1 WO 2018004157A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
electrode
tab
secondary battery
gasket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/006206
Other languages
English (en)
Korean (ko)
Inventor
변상원
유석윤
백윤기
김성훈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung SDI Co Ltd
Original Assignee
Samsung SDI Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung SDI Co Ltd filed Critical Samsung SDI Co Ltd
Publication of WO2018004157A1 publication Critical patent/WO2018004157A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/15—Lids or covers characterised by their shape 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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
    • 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
    • H01M2200/20—Pressure-sensitive devices
    • 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
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
    • H01M50/143—Fireproof; Explosion-proof
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
    • H01M50/547—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
    • 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
    • H01M50/586—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
    • 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.
  • a secondary battery is a battery that can be charged and discharged unlike a primary battery that is not rechargeable. Secondary batteries are widely used in portable electronic devices such as mobile phones, laptops, and camcorders, or widely used as power sources for driving motors of hybrid vehicles.
  • the secondary battery includes an electrode assembly including a positive electrode and a negative electrode and a separator interposed between the positive electrode and the negative electrode.
  • the electrode assembly is accommodated in the case to perform charging and discharging, and the case is provided with terminals to supply or receive current.
  • the case may be made of a metal plate or pouch.
  • a vent member or the like is installed in the secondary battery to prevent explosion or ignition of the secondary battery as described above, which may be generated by an abnormal current.
  • the vent member is installed in the secondary battery, and when the pressure inside the secondary battery reaches a predetermined pressure or more, the vent member is broken to discharge the gas generated in the secondary battery to the outside of the secondary battery.
  • a vent hole In order to install the vent member in the secondary battery, a vent hole must be formed in the cover and the vent member must be welded to the vent hole, thereby making the manufacturing process of the secondary battery complicated.
  • One aspect of the present invention is to provide a secondary battery having a structure for more efficiently preventing explosion or ignition that may occur in the secondary battery.
  • a secondary battery includes an electrode assembly including a separator interposed between a first electrode and a second electrode, a first electrode tab and a second electrode extending from the first electrode and the second electrode, respectively.
  • a tab a case having an opening formed in one direction to receive the electrode assembly, a cap plate including a first plate and a second plate coupled to an opening of the case and extending along a length direction of the opening and coupled to each other; And a first lead tab and a second lead tab drawn between the first plate and the second plate and electrically connected to the first electrode tab and the second electrode tab, respectively.
  • the gasket may further include a gasket formed on the first lead tab and the second lead tab, the tab part protruding out of the cap plate and the plate part attached to the cap plate.
  • the tab portion may protrude in a direction in which the first plate and the second plate are coupled.
  • the gasket may be attached to a surface facing the inside of the case of the cap plate and may surround the side of the cap plate.
  • the gasket may be attached to a surface facing the outside of the case of the cap plate and may surround the side of the cap plate.
  • the gasket may be attached to the inner and outer surfaces of the case of the cap plate and surround the side of the cap plate.
  • the gasket may be made of any one of perfluoroalkoxy (PFA), ethylene propylene diene monomer (EPDM), and fluoroelastomers (FKM).
  • PFA perfluoroalkoxy
  • EPDM ethylene propylene diene monomer
  • FKM fluoroelastomers
  • the electrode assembly is composed of two facing each other, can be accommodated in the case.
  • the first plate and the second plate may be joined by welding.
  • the tab part may be formed by insert injection between the first plate and the second plate.
  • the first plate and the second plate may be symmetrical with respect to the joint surface.
  • Secondary battery according to an embodiment of the present invention can be more efficiently prevent the explosion or ignition of the secondary battery by a cap plate configured more simply.
  • FIG. 1 is a perspective view of a secondary battery according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.
  • FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1.
  • FIG. 4 is a plan view separately illustrating a cap plate applied to the secondary battery illustrated in FIG. 1.
  • FIG. 5 is a plan view showing the coupling of the cap plate shown in FIG.
  • FIG. 6 is a cross-sectional view of a rechargeable battery according to another exemplary embodiment of the present invention.
  • FIG. 1 is a perspective view of a secondary battery according to an embodiment of the present invention.
  • the secondary battery 100 includes an electrode assembly 10, a case 20 accommodating the same, and a cap plate 30 sealing the opening of the case 20.
  • the cap plate 30 may include a first plate 32 and a second plate 34 coupled to the first plate 32.
  • the first plate 32 and the second plate 34 may be formed long along the lengthwise direction of the opening of the case 20, respectively.
  • the first plate 32 and the second plate 34 may be formed in the same size. That is, the first plate 32 and the second plate 34 are formed to be symmetrical to the joint surface.
  • the first lead tab 52 and the second lead tab 54 may exit between the first plate 32 and the second plate 34.
  • a gasket 40 may be attached around the first lead tab 52 and the second lead tab 54.
  • the gasket 40 is formed to be larger than the width of the first lead tab 52 and the second lead tab 54 so as to surround the first lead tab 52 and the second lead tab 54. Accordingly, the cap plate 30, the first lead tab 52, and the second lead tab 54 may be electrically insulated by the gasket 40.
  • the first plate 32 and the second plate 34 may be welded together. Welding is performed outside the first plate 32 and the second plate 34 to form a welding line 36.
  • FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1
  • FIG. 3 is a cross-sectional view taken along the line III-III of FIG.
  • the cap plate 30 may be attached with a gasket 40 for insulation.
  • the gasket 40 may prevent the first lead tab 52, the second lead tab 54, and the electrode assembly 10 from coming into contact with the cap plate 30 to short-circuit.
  • the gasket 40 may include a tab portion 42 attached to the first lead tab 52 and the second lead tab 54 and a plate portion 41 attached to the cap plate 30.
  • the tab portion 42 may be attached to the first lead tab 52 and the second lead tab 54 to protrude out of the cap plate 30.
  • the tab part 42 is formed to be larger than the width of the first lead tab 52 and the second lead tab 54 so as to surround and surround the first lead tab 52 and the second lead tab 54. Accordingly, the first lead tab 52 and the second lead tab 54 may be electrically insulated from the cap plate 30.
  • Plate portion 41 is attached to the lower portion of the cap plate 30, that is, the surface facing the inside of the case to prevent the risk that the electrode assembly 10 may be in contact with the cap plate 30 by an external impact or the like and short-circuited. Can be.
  • the plate portion 41 may be attached to the side of the cap plate (30).
  • the gasket 40 may also be divided into the first gasket 40a and the second gasket 40b. have.
  • the tab portion 42 of the first gasket 40a and the second gasket 40b may protrude in the direction in which the first plate 32 and the second plate 34 are coupled to each other. Accordingly, when the first plate 32 and the second plate 34 are coupled to each other, the first gasket tab portion 42a and the second gasket tab portion 42b may be the first lead tab 52 or the second lead tab ( 54 may be in close contact with each other to surround the first lead tab 52 or the second lead tab 54 and be connected to each other. As a result, the first lead tab 52 and the second lead tab 54 are insulated from the cap plate 30.
  • the gasket 40 may be made of a material exhibiting excellent chemical, electrical, and mechanical properties, and may be made of any one of perfluoroalkoxy (PFA), ethylene propylene diene monomer (EPDM), and fluoroelastomers (FKM).
  • PFA perfluoroalkoxy
  • EPDM ethylene propylene diene monomer
  • FKM fluoroelastomers
  • the gasket 40 is preferably made of a material having high chemical stability because it does not react to chemicals.
  • the cap plate 30 may be inserted into and coupled to the opening of the case 20. As described above, the cap plate 30 is divided into a first plate 32 and a second plate 34.
  • gas may be generated in the case 20. Accordingly, the secondary battery 100 has a risk that explosion or fire may occur.
  • the electrode assembly 10 may include a first electrode 11 and a second electrode 12 and a separator 13 interposed therebetween.
  • the electrode assembly 10 may be formed by winding in the form of a jelly roll.
  • the first electrode 11, the second electrode 12, and the separator 13 may be stacked to form a stack.
  • the first electrode 11 may include a coating part coated with an active material on both sides of the electrode plate and a first electrode tab 11a not coated with the active material.
  • the first electrode 11 may be a cathode.
  • the electrode plate may be made of a material having excellent conductivity and may be a copper thin plate.
  • the active material of the first electrode 11 may be formed of a material in which a binder and a conductive material are mixed with a negative electrode active material such as a carbon material.
  • the second electrode 12 has a different polarity from that of the first electrode 11 and may be, for example, an anode.
  • the second electrode 12 may include a coating part coated with an active material on both sides of the electrode plate and a second electrode tab 12a not coated with the active material.
  • the electrode plate is made of a material having excellent conductivity and may be an aluminum thin plate.
  • the active material may be formed of a material in which a binder, a conductive material, and the like are mixed with a lithium-based oxide.
  • the first electrode tab 11a and the second electrode tab 12a are electrically connected to the first lead tab 52 and the second lead tab 54 in the case 20, respectively. As described above, the first lead tab 52 and the second lead tab 54 are drawn out of the case 20.
  • At least one electrode assembly 10 may be accommodated in the case 20 of the secondary battery 100. Therefore, the plurality of first electrode tabs 11a may be connected to one and electrically connected to the first lead tabs 52. Similarly, the plurality of second electrode tabs 12a may be connected to one and electrically connected to the second lead tabs 54. A plurality of electrode assemblies 10 may be provided so that even when one of the electrode assemblies 10 loses its charge / discharge capability, the secondary battery 100 may be used, thereby extending its lifespan.
  • FIG. 4 is a plan view showing the cap plate applied to the secondary battery shown in Figure 1 separated
  • Figure 5 is a plan view showing the coupling of the cap plate shown in FIG.
  • the first plate 32 and the second plate 34 constituting the cap plate 30 are coupled in the longitudinal direction.
  • the first plate 32 and the second plate 34 are formed in the same size and will be described below using the first plate 32 as an example.
  • the first plate 32 may be formed long along the length direction of the case 20, and the width of the first plate 32 may be formed to be half the width of the case 20.
  • the first gasket 40a may be attached to the first plate 32.
  • the first gasket 40a includes the plate portion 41 and the tab portion 42, and the plate portion 41 of the first gasket 40a may be attached to the lower side and the side surface of the first plate 32. Therefore, the first plate 32 is electrically insulated in all directions by the first gasket 40a.
  • the first gasket tab portion 42a is formed to protrude in one direction of the first plate 32, and the width thereof is larger than the width of the first lead tab 52 or the second lead tab 54.
  • the first plate 32 and the second plate 34 are coupled to one side direction in which the first gasket tab part 42a protrudes.
  • the first plate 32 and the second plate 34 may be coupled in close contact with each other via the first lead tab 52 and the second lead tab 54 in the center thereof. That is, the first plate 32 and the second plate 34 are fixed while being pressed, and laser welding is performed on portions other than the first lead tab 52 and the second lead tab 54 so that the first plate 32 is fixed. And the second plate 34 may be coupled to each other. At this time, the first gasket tab portion 42a and the second gasket tab portion 42b surround and insulate around the first lead tab 52 and the second lead tab 54 by an adhesive force.
  • Welding is performed to the outside of the first plate 32 and the second plate 34, and welded between the first plate 32 and the second plate 34 without damaging the tab portion 42 of the gasket 40.
  • Line 36 is formed. Accordingly, the pressure of the gas generated inside the case 20 acting outside the case 20 may be more easily exposed to the outside while separating the coupling between the first plate 32 and the second plate 34. .
  • FIG. 6 is a cross-sectional view of a rechargeable battery according to another exemplary embodiment of the present invention.
  • the gasket 40 may be attached to surround the cap plate 30.
  • the gasket 40 may be attached to an upper portion of the cap plate 30, and in this case, the welding line 36 formed between the first plate 32 and the second plate 34 is exposed to the outside. As described above, when gas is generated in the case 20 and the case 20 becomes high in pressure, the first plate 32 and the second plate 34 are more efficiently broken in order to break the first plate 32. The welding line 36 formed between the 32 and the second plate 34 should be exposed to the outside. Thus, the gasket 40 is attached to the upper portion of the cap plate 30 except for the welding line 36.
  • first electrode 12 second electrode
  • cap plate 32 first plate
  • gasket 40a first gasket

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

Abstract

Une batterie secondaire selon la présente invention comprend : un assemblage d'électrodes comprenant un séparateur intercalé entre une première électrode et une seconde électrode; une première languette d'électrode et une seconde languette d'électrode s'étendant respectivement à partir de la première électrode et de la seconde électrode; un boîtier ayant une ouverture formée sur celui-ci dans une direction et recevant l'assemblage d'électrodes dans celui-ci; une plaque de recouvrement, qui est couplée à l'ouverture du boîtier et qui comprend une première plaque et une seconde plaque qui sont couplées l'une à l'autre tout en s'étendant le long de la direction longitudinale de l'ouverture; et une première languette de connexion et une seconde languette de connexion, qui sont tirées entre la première plaque et la seconde plaque et sont électriquement connectées à la première languette d'électrode et à la seconde languette d'électrode, respectivement.
PCT/KR2017/006206 2016-06-28 2017-06-14 Batterie secondaire Ceased WO2018004157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0080945 2016-06-28
KR1020160080945A KR102629054B1 (ko) 2016-06-28 2016-06-28 이차전지

Publications (1)

Publication Number Publication Date
WO2018004157A1 true WO2018004157A1 (fr) 2018-01-04

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PCT/KR2017/006206 Ceased WO2018004157A1 (fr) 2016-06-28 2017-06-14 Batterie secondaire

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KR (1) KR102629054B1 (fr)
WO (1) WO2018004157A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116053693A (zh) * 2021-10-28 2023-05-02 爱思普有限公司 电动车辆二次电池用盖板焊接构件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025005297A1 (fr) * 2023-06-28 2025-01-02 大日本印刷株式会社 Dispositif de stockage d'énergie, corps de couvercle, corps de recouvrement et procédé de fabrication de dispositif de stockage d'énergie

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KR20140094204A (ko) * 2013-01-21 2014-07-30 삼성에스디아이 주식회사 이차 전지
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CN116053693A (zh) * 2021-10-28 2023-05-02 爱思普有限公司 电动车辆二次电池用盖板焊接构件
EP4175028A1 (fr) * 2021-10-28 2023-05-03 SP Systems Co., Ltd. Ensemble de soudage de plaque de capuchon pour batterie secondaire de véhicule électrique

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