发明授权
- 专利标题: Non-aqueous electrolyte battery and method of manufacturing the same
- 专利标题(中): 非水电解质电池及其制造方法
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申请号: US10439807申请日: 2003-05-16
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公开(公告)号: US07261976B2公开(公告)日: 2007-08-28
- 发明人: Satoshi Mizutani , Hiroshi Inoue , Takatomo Nishino , Atsuo Omaru
- 申请人: Satoshi Mizutani , Hiroshi Inoue , Takatomo Nishino , Atsuo Omaru
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sonnenschein Nath & Rosenthal LLP
- 优先权: JPP2002-152720 20020527
- 主分类号: H01M4/58
- IPC分类号: H01M4/58 ; H01M4/82
摘要:
The battery comprises a positive electrode which has a positive electrode active material compound layer containing a positive electrode active material formed on a positive electrode current collector; a negative electrode which has at least one negative electrode thin film layer and at least one negative electrode active material compound layer, on a negative electrode current collector, and a non-aqueous electrolyte containing an electrolyte salt. The negative electrode thin film layer contains at least one Group 14 element, and is formed by a thin-film formation technology, and the negative electrode active material compound layer contains a binder and a negative electrode active material, which contains at least any one of Sn, Si, Sn compound, Si compound and carbonaceous material. With this negative electrode, the negative electrode thin film layer containing a high-capacity Group 14 element raises the battery capacity, and the negative electrode active material compound layer provides excellent charge/discharge cycle characteristics while suppressing degradation of the negative electrode even under repetitive charge/discharge.
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