发明授权
- 专利标题: Lithium secondary battery
- 专利标题(中): 锂二次电池
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申请号: US09686804申请日: 2000-10-12
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公开(公告)号: US06492063B1公开(公告)日: 2002-12-10
- 发明人: Hiroaki Ikeda , Masahisa Fujimoto , Shin Fujitani , Takuya Hashimoto , Yasuhiko Itoh , Ikuo Yonezu
- 申请人: Hiroaki Ikeda , Masahisa Fujimoto , Shin Fujitani , Takuya Hashimoto , Yasuhiko Itoh , Ikuo Yonezu
- 优先权: JP11-294477 19991015
- 主分类号: H01M458
- IPC分类号: H01M458
摘要:
In a lithium secondary battery of this invention, the negative electrode uses, as an active material, an alloy including an A phase of a first intermetallic compound (A), and a B phase of a second intermetallic compound (B) having the same constituent elements as and a different composition from the first intermetallic compound (A) and/or a C phase consisting of one of the constituent elements of the first intermetallic compound (A), and at least one of the A phase, the B phase and the C phase is capable of electrochemically absorbing and discharging lithium ions. Thus, the lithium secondary battery can exhibit good charge-discharge cycle performance.