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1. WO2019050177 - POUCH-TYPE SECONDARY BATTERY

Publication Number WO/2019/050177
Publication Date 14.03.2019
International Application No. PCT/KR2018/009137
International Filing Date 09.08.2018
IPC
H01M 2/34 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
20Current-conducting connections for cells
34with provision for preventing undesired use or discharge
H01M 2/26 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
20Current-conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
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 10/0525
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
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/425
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
H01M 10/48
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
48Accumulators combined with arrangements for measuring, testing or indicating condition, e.g. level or density of the electrolyte
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
H01M 2/0207
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
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
0207Flat-shaped cells or batteries of flat cells
H01M 2/021
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
0202for small-sized cells or batteries, e.g. miniature battery or power cells, batteries or cells for portable equipment
0207Flat-shaped cells or batteries of flat cells
021with both terminals passing through the case or cover
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 박종필 PARK, Jong Pil
  • 최승돈 CHOI, Seung Don
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2017-011461307.09.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) POUCH-TYPE SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE DE TYPE POCHE
(KO) 파우치 형 이차 전지
Abstract
(EN)
A pouch-type secondary battery according to an embodiment of the present invention for resolving the above-described problem comprises: an electrode assembly in which a separator and an electrode having a positive electrode and a negative electrode are stacked; a pouch-type battery case which accommodates the electrode assembly; an electrode tab which is connected to the electrode and protrudes from one side of the electrode assembly; a first electrode lead having one end connected to the electrode tab; a second electrode lead which has one end connected to the other end of the first electrode lead and the other end protruding to the outside of the battery case; and a connection part for adhering and connecting the first electrode lead and the second electrode lead to each other, wherein, on at least one among the first and second electrode leads, at least one notch is formed in the adhering surfaces adhered to each other through the connection part.
(FR)
Une batterie secondaire de type poche selon un mode de réalisation de la présente invention pour résoudre le problème décrit ci-dessus comprend : un ensemble d'électrodes dans lequel un séparateur et une électrode ayant une électrode positive et une électrode négative sont empilés ; un bac de batterie de type poche qui loge l'ensemble d'électrodes ; une languette d'électrode qui est reliée à l'électrode et fait saillie à partir d'un côté de l'ensemble d'électrodes ; un premier fil d'électrode ayant une extrémité reliée à la languette d'électrode ; un second fil d'électrode qui a une extrémité reliée à l'autre extrémité du premier fil d'électrode et l'autre extrémité faisant saillie vers l'extérieur du bac de batterie ; et une partie de connexion pour faire adhérer et connecter le premier fil d'électrode et le second fil d'électrode l'un à l'autre, sur au moins un fil parmi les premier et second fils d’électrode, au moins une encoche est formée dans les surfaces adhérentes collées l'une à l'autre par l'intermédiaire de la partie de connexion.
(KO)
상기 과제를 해결하기 위한 본 발명의 실시예에 따른 파우치 형 이차 전지는 양극 및 음극을 포함하는 전극과, 분리막이 적층되는 전극 조립체; 상기 전극 조립체를 수용하는 파우치 형태의 전지 케이스; 상기 전극과 연결되며 상기 전극 조립체의 일측으로부터 돌출되는 전극 탭; 일단이 상기 전극 탭과 연결되는 제1 전극 리드; 일단이 상기 제1 전극 리드의 타단과 연결되고, 타단이 상기 전지 케이스의 외부로 돌출되는 제2 전극 리드; 및 상기 제1 전극 리드 및 상기 제2 전극 리드를 서로 접착시켜 연결하는 연결부;를 포함하되, 상기 제1 및 제2 전극 리드 중 적어도 하나에는, 상기 연결부를 통해 서로에게 접착되는 접착면에 적어도 하나의 노치가 형성된다.
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