发明申请
US20050064291A1 Battery and non-aqueous electrolyte secondary battery using the same
审中-公开
电池和非水电解质二次电池使用相同
- 专利标题: Battery and non-aqueous electrolyte secondary battery using the same
- 专利标题(中): 电池和非水电解质二次电池使用相同
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申请号: US10933147申请日: 2004-09-02
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公开(公告)号: US20050064291A1公开(公告)日: 2005-03-24
- 发明人: Toshitada Sato , Miyuki Nakai , Emiko Igaki , Yasuhiko Bito
- 申请人: Toshitada Sato , Miyuki Nakai , Emiko Igaki , Yasuhiko Bito
- 申请人地址: JP Kadoma-shi
- 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 Kadoma-shi
- 优先权: JP2003-326520 20030918
- 主分类号: H01M4/02
- IPC分类号: H01M4/02 ; H01M4/134 ; H01M4/40 ; H01M4/62 ; H01M4/64 ; H01M4/66 ; H01M4/70 ; H01M10/052 ; H01M10/36 ; H01M4/58
摘要:
A negative electrode for a non-aqueous electrolyte secondary battery including a current collector, and an electrode material layer including an electrode material capable of reversibly absorbing and desorbing Li ions is provided. The electrode material includes at least one element selected from the group consisting of Si, Sn and Al; the surface of the current collector is provided with protrusions; the electrode material layer is disposed on the surfaces of the current collector and the protrusions; and the protrusion has a portion facing the surface of the current collector other than a portion that is brought into contact with the current collector. Thus, a negative electrode for a non-aqueous electrolyte battery having high properties such as an energy density, charging/discharging cycle property, and the like, and a non-aqueous electrolyte secondary battery can be provided.
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