发明申请
- 专利标题: LITHIUM SECONDARY BATTERY
- 专利标题(中): 锂二次电池
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申请号: US13040707申请日: 2011-03-04
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公开(公告)号: US20110217577A1公开(公告)日: 2011-09-08
- 发明人: Atsushi Fukui , Taizou Sunano , Maruo Kamino
- 申请人: Atsushi Fukui , Taizou Sunano , Maruo Kamino
- 申请人地址: JP Osaka
- 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 Osaka
- 优先权: JP2010-048148 20100304; JP2010-120724 20100526
- 主分类号: H01M4/02
- IPC分类号: H01M4/02 ; H01M4/38 ; H01M2/02
摘要:
A lithium secondary battery comprises an electrode assembly and a non-aqueous electrolyte. The electrode assembly is made by winding a negative electrode, a positive electrode, and a separator interposed between the negative and positive electrodes. The negative electrode contains a negative electrode active material that is alloyed with lithium. The non-aqueous electrolyte is impregnated in the electrode assembly. At least one of the negative and positive electrodes is divided into a plurality of electrode units which are arranged at spaces for each other along the winding direction.