公开(公告)号：US20130230749A1

公开(公告)日：2013-09-05

申请号：US13865227

申请日：2013-04-18

Applicant: LG CHEM, LTD.

Inventor： Yong-Chan KIM ,  Duk-Hyun RYU ,  Cha-Hun KU ,  Nak-Gi SUNG

IPC: H01M10/04

CPC classification number: H01M10/0431 ,  H01M2/1653 ,  H01M10/0587 ,  H01M10/4235

Abstract: A cylindrical secondary battery is disclosed. The cylindrical secondary battery includes a jelly-roll type electrode assembly, a center pin inserted to penetrate the central portion of the jelly-roll type electrode assembly, a can accommodating the electrode assembly and the center pin, a cap assembly coupled to an upper opening of the can to seal the can, and a gasket interposed between the can and the cap assembly. In the jelly-roll type electrode assembly, a first electrode, a second electrode and a separator interposed between the two electrodes are wound together. An electrode tape is attached to at least one surface of an uncoated portion of the first electrode at a core of the jelly-roll type electrode assembly. The electrode tape includes a polymeric resin film having a melting point of at least 130° C.

Abstract translation: 公开了一种圆柱形二次电池。 圆筒形二次电池包括胶卷型电极组件，插入以插入胶卷型电极组件的中心部分的中心销，容纳电极组件和中心销的容器，联接到上部开口 罐头可以密封罐子，以及插入罐和盖组件之间的垫圈。 在胶卷式电极组件中，将介于两个电极之间的第一电极，第二电极和隔膜缠绕在一起。 在胶卷式电极组件的芯部，将电极带附接到第一电极的未涂覆部分的至少一个表面。 电极带包括熔点至少为130℃的聚合物树脂膜