Secondary battery battery pack and device for manufacturing secondary battery

Disclosed are a secondary battery, a battery pack, and a sealing device for manufacturing a secondary battery. According to an aspect of the present invention, at one end of both ends in the longitudinal direction of a sealing part formed on an exterior material, a radius of curvature a region in wh...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI DAI HIEN, KONG TAE YOON, MOON TAE YOUNG, JUNG HYUN CHUL, KIM TAE HYUN, KIM HYUN TAE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BASIC ELECTRIC ELEMENTS ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Disclosed are a secondary battery, a battery pack, and a sealing device for manufacturing a secondary battery. According to an aspect of the present invention, at one end of both ends in the longitudinal direction of a sealing part formed on an exterior material, a radius of curvature a region in which a sealing part and the other region of the exterior material are connected to each other, may be larger than a radius of curvature in a region in which the sealing part and the other region of the exterior material are connected to each other in a section excluding both the ends in the longitudinal direction of the sealing part. According to the present invention, damage of the exterior material can be overcome. 이차전지, 전지 팩 및 이차전지 제조용 밀봉 장치가 개시된다. 본 발명의 일 측면에 따르면, 외장재에 형성된 밀봉부의 길이 방향의 양 끝부 중 일 끝부에서, 밀봉부와 외장재의 타 영역이 서로 연결되는 영역에서의 곡률 반경은, 밀봉부의 길이 방향의 상기 양 끝부를 제외한 구간에서 밀봉부와 외장재의 타 영역이 서로 연결되는 영역에서의 곡률 반경보다 클 수 있다.