发明申请
- 专利标题： Lithium secondary battery and method of manufacturing the same
- 专利标题（中）： 锂二次电池及其制造方法
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申请号： US11526770申请日： 2006-09-26
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公开(公告)号： US20070072062A1公开(公告)日： 2007-03-29
- 发明人: Atsushi Fukui , Hiroshi Minami , Yasuyuki Kusumoto
- 申请人： Atsushi Fukui , Hiroshi Minami , Yasuyuki Kusumoto
- 申请人地址： JP Moriguchi-shi
- 专利权人： SANYO ELECTRIC CO., LTD.
- 当前专利权人： SANYO ELECTRIC CO., LTD.
- 当前专利权人地址： JP Moriguchi-shi
- 优先权： JP2005-277128 20050926
- 主分类号： H01M4/02
- IPC分类号： H01M4/02 ; H01M4/58 ; H01M2/26 ; H01M10/04
摘要：
A lithium secondary battery is provided in which the current collector tab attachment structure has been improved to inhibit a drop in the charge-discharge cycle performance while inhibiting bulging in the battery, thereby allowing the volume energy density to be increased. The positive electrode current collector at the outermost periphery portion of a flat electrode assembly is provided with a positive electrode current collector tab that is parallel to the winding direction of the flat electrode assembly, and the negative electrode current collector at the outermost periphery portion of the flat electrode assembly is provided with a negative electrode current collector tab that is parallel to the winding direction of the flat electrode assembly.
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