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1. WO2020071718 - SECONDARY BATTERY

Publication Number WO/2020/071718
Publication Date 09.04.2020
International Application No. PCT/KR2019/012790
International Filing Date 01.10.2019
IPC
H01M 10/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 10/0587 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 2/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
02Cases, jackets or wrappings
CPC
H01M 10/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 10/0587
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 2/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details or processes of manufacture of the non-active parts
02Cases, jackets or wrappings
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 박정일 PARK, Jung Il
  • 김지호 KIM, Jee Ho
  • 이용태 LEE, Yong Tae
  • 고명훈 KO, Myung Hoon
  • 김기연 KIM, Ki Youn
  • 강경수 KANG, Gyung Soo
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-011898905.10.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE
(KO) 이차전지
Abstract
(EN)
The present invention relates to a secondary battery, and the secondary battery according to the present invention comprises: an electrode assembly in which first electrodes, separators, and second electrodes are alternately stacked on one another; and a can for accommodating the electrode assembly, wherein the first electrodes have first electrode uncoated portions, which are not coated with the electrode active material, disposed at ends of one sides thereof so as to protrude farther than the separator with respect to a central axis in a direction where the electrode assembly is wound, the second electrodes have second electrode uncoated portions, which are not coated with the electrode active material, disposed at ends of the other sides thereof so as to protrude farther than the separator with respect to the central axis in a direction where the electrode assembly is wound, and the can comprises a first can and a second can. The first electrode uncoated portions contact a first connection portion provided at an end of one side of the first can, the second electrode uncoated portions contact a second connection portion provided at an end of the other side of the second can, and at least one of the first connection portion and the second connection portion includes a protrusion connection portion having a form protruding towards the electrode assembly.
(FR)
La présente invention concerne une batterie secondaire, et la batterie secondaire selon la présente invention comprend : un ensemble d'électrodes dans lequel des premières électrodes, des séparateurs et des secondes électrodes sont empilées en alternance les unes sur les autres; et un boîtier destiné à recevoir l'ensemble électrode, les premières électrodes ayant des premières parties non revêtues d'électrode, qui ne sont pas revêtues du matériau actif d'électrode, disposées aux extrémités de l'un de ses côtés de façon à faire saillie plus loin que le séparateur par rapport à un axe central dans une direction où l'ensemble électrode est enroulé, les secondes électrodes ayant des parties non revêtues de seconde électrode, qui ne sont pas revêtues du matériau actif d'électrode, disposées au niveau des extrémités des autres côtés de celui-ci de façon à faire saillie plus loin que le séparateur par rapport à l'axe central dans une direction dans laquelle l'ensemble électrode est enroulé, et le boîtier peut comprendre un premier boîtier et un second boîtier. Les parties non revêtues des premières électrodes entrent en contact avec une première partie de connexion disposée à une extrémité d'un côté de l première boîte, les secondes parties non revêtues d'électrode entrent en contact avec une seconde partie de connexion disposée à une extrémité de l'autre côté de la seconde boîte, et au moins l'une de la première partie de connexion et de la seconde partie de connexion comprend une partie de connexion en saillie ayant une forme faisant saillie vers l'ensemble électrode.
(KO)
본 발명은 이차전지에 관한 것으로, 본 발명에 따른 이차전지는, 제1 전극, 분리막, 제2 전극이 교대로 적층된 전극 조립체 및 상기 전극 조립체를 수용하는 캔을 포함하고, 상기 제1 전극은 상기 전극 활물질이 코팅되지 않는 제1 전극 무지부가, 상기 전극 조립체의 권취 중심축방향을 기준으로, 상기 분리막 보다 더 돌출되도록 일측 방향 단부에 위치되며, 상기 제2 전극은 상기 전극 활물질이 코팅되지 않는 제2 전극 무지부가, 상기 전극 조립체의 권취 중심축방향을 기준으로, 상기 분리막 보다 더 돌출되도록 타측 방향 단부에 위치되고, 상기 캔은 제1 캔 및 제2 캔을 포함하고, 상기 제1 전극 무지부는 상기 제1 캔의 일측 단부에 위치되는 제1 접속부에 접촉하고, 제2 전극 무지부는 상기 제2 캔의 타측 단부에 위치되는 제2 접속부에 접촉하며, 상기 제1 접속부 및 상기 제2 접속부 중 적어도 하나는 전극 조립체 방향으로 돌출된 형태의 돌출 접속부를 포함한다.
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