发明授权
- 专利标题: Cylindrical lithium battery resistant to breakage of the porous heat resistant layer
- 专利标题(中): 圆柱形锂电池耐多孔耐热层破损
-
申请号: US11396646申请日: 2006-04-04
-
公开(公告)号: US07419743B2公开(公告)日: 2008-09-02
- 发明人: Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
- 申请人: Masato Fujikawa , Kohei Suzuki , Kaoru Inoue , Mikinari Shimada
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2005-107255 20050404
- 主分类号: H01M2/18
- IPC分类号: H01M2/18 ; H01M2/16 ; H01M4/00
摘要:
A cylindrical lithium secondary battery that is resistant to breakage of the porous heat-resistant layer and therefore excellent in both safety and battery characteristics. The cylindrical lithium secondary battery includes: a battery can having a bottom, a side wall, and an open top; an electrode assembly; a non-aqueous electrolyte; and a sealing plate covering the open top of the battery can that accommodates the electrode assembly and the electrolyte. The electrode assembly includes a strip-like positive electrode and a strip-like negative electrode that are wound together with a porous heat-resistant layer and a separator interposed between the positive and negative electrodes. The thickness A of the porous heat-resistant layer and the thickness B of the side wall of the battery can satisfy the relation: 0.005≦A/B≦0.1.
公开/授权文献
- US20060222933A1 Cylindrical lithium secondary battery 公开/授权日:2006-10-05
信息查询