- 专利标题: Electrode material for non-aqueous solvent secondary cell, electrode and secondary cell
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申请号: US11378300申请日: 2006-03-20
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公开(公告)号: US20060159995A1公开(公告)日: 2006-07-20
- 发明人: Minoru Ishikawa , Kazuhiko Shimizu , Takashi Wakahoi , Shuji Morinishi , Naohiro Sonobe , Akio Hoshi
- 申请人: Minoru Ishikawa , Kazuhiko Shimizu , Takashi Wakahoi , Shuji Morinishi , Naohiro Sonobe , Akio Hoshi
- 优先权: JP047062/2001 20010222
- 主分类号: H01M4/58
- IPC分类号: H01M4/58 ; H01M4/62
摘要:
An electrode material comprising a powdery mixture of a metal material (particularly, an intermetallic compound) and a capacitive carbon material each capable of doping and dedoping lithium, and an optionally added fine electroconductive additive, and containing the metal material and the capacitive carbon material in amounts of 5-60 wt. % and 40-95 wt. %, respectively, is used as an active substance for an electrode, particularly a negative electrode, of a non-aqueous solvent secondary cell. As a result, there is provided a non-aqueous solvent secondary cell which has large charge-discharge capacities, a small irreversible capacity determined as a difference between the doping capacity and the de-doping capacity, and also excellent cycle characteristics.
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