发明公开
- 专利标题: NEGATIVE ELECTRODE FOR ELECTRICAL DEVICE AND ELECTRICAL DEVICE PROVIDED WITH SAME
- 专利标题(中): 用于电气设备的阴极和与之相配的电气设备
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申请号: EP13856910.8申请日: 2013-11-19
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公开(公告)号: EP2924770A1公开(公告)日: 2015-09-30
- 发明人: WATANABE, Manabu , MIKI, Fumihiro , SANADA, Takashi , CHIBA, Nobutaka
- 申请人: Nissan Motor Co., Ltd
- 申请人地址: 2 Takara-cho Kanagawa-ku Yokohama-shi, Kanagawa 220-8623 JP
- 专利权人: Nissan Motor Co., Ltd
- 当前专利权人: Nissan Motor Co., Ltd
- 当前专利权人地址: 2 Takara-cho Kanagawa-ku Yokohama-shi, Kanagawa 220-8623 JP
- 代理机构: Hoefer & Partner Patentanwälte mbB
- 优先权: JP2012256893 20121122
- 国际公布: WO2014080893 20140530
- 主分类号: H01M4/133
- IPC分类号: H01M4/133 ; C22C13/00 ; C22C14/00 ; C22C18/00 ; C22C28/00 ; H01M4/134 ; H01M4/36 ; H01M4/38
摘要:
[TECHNICAL PROBLEM] To provide a negative electrode for an electric device such as a Li ion secondary battery which exhibits balanced characteristics of providing high initial capacity and maintaining high cycle characteristics.
[SOLUTION TO PROBLEM] The negative electrode for an electric device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector. The negative electrode active material is a mixture of a carbon material and an alloy expressed by formula (1): Si x Ti y M z A a ...(1) (in formula (1), M is at least one metal selected from the group consisting of Ge, Sn, Zn, and combinations thereof, A is inevitable impurity, and x, y, z, and a represent mass percent values and satisfy 0
[SOLUTION TO PROBLEM] The negative electrode for an electric device includes: a current collector; and an electrode layer containing a negative electrode active material, an electrically-conductive auxiliary agent and a binder and formed on a surface of the current collector. The negative electrode active material is a mixture of a carbon material and an alloy expressed by formula (1): Si x Ti y M z A a ...(1) (in formula (1), M is at least one metal selected from the group consisting of Ge, Sn, Zn, and combinations thereof, A is inevitable impurity, and x, y, z, and a represent mass percent values and satisfy 0
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