- 专利标题: GRAPHITE MATERIAL, CARBONACEOUS MATERIAL FOR BATTERY ELECTRODES, AND BATTERIES
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申请号: EP10825048.1申请日: 2010-10-22
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公开(公告)号: EP2418172B1公开(公告)日: 2018-09-05
- 发明人: NISHIMURA, Yoshiyuki , SUDOH, Akinori , YOSHIOKA, Shunsuke
- 申请人: Showa Denko K.K.
- 申请人地址: 13-9, Shiba Daimon 1-chome Minato-ku Tokyo 105-8518 JP
- 专利权人: Showa Denko K.K.
- 当前专利权人: Showa Denko K.K.
- 当前专利权人地址: 13-9, Shiba Daimon 1-chome Minato-ku Tokyo 105-8518 JP
- 代理机构: Strehl Schübel-Hopf & Partner
- 优先权: JP2009243381 20091022
- 国际公布: WO2011049199 20110428
- 主分类号: H01M4/587
- IPC分类号: H01M4/587
摘要:
Provided are a graphite material suitable as an electrode material for nonaqueous electrolyte secondary batteries, a carbonaceous material for battery electrodes, and secondary batteries which exhibit excellent charge-discharge cycle characteristics and excellent severe-current-load characteristics. A graphite material which has specific sizes of optically anisotropic and isotropic structures, a specific content ratio between both structures, and various orientation of crystallization; and a carbonaceous material for battery electrodes which is made using the graphite material and which exhibits a large discharge capacity and a small irreversible capacity with the severe-current-load characteristics and cycle characteristics being kept at high levels.
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