发明授权
- 专利标题： Secondary battery-use negative electrode and secondary battery using it
- 专利标题（中）： 二次电池用负极和二次电池使用它
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申请号： US10502268申请日： 2003-01-22
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公开(公告)号： US07285359B2公开(公告)日： 2007-10-23
- 发明人: Hironori Yamamoto , Mitsuhiro Mori , Jiro Iriyama , Mariko Miyachi , Koji Utsugi , Yutaka Bannai , Tamaki Miura , Ikiko Yamazaki
- 申请人： Hironori Yamamoto , Mitsuhiro Mori , Jiro Iriyama , Mariko Miyachi , Koji Utsugi , Yutaka Bannai , Tamaki Miura , Ikiko Yamazaki
- 申请人地址： JP Tokyo
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue MIon Pllc.
- 优先权： JP2002-013749 20020123
- 国际申请： PCT/JP03/00566 WO 20030122
- 国际公布： WO03/063270 WO 20030731
- 主分类号： H01M4/58
- IPC分类号： H01M4/58
摘要：
An object of the present invention is to provide a negative electrode for a secondary battery which has large capacity and restrains a rise in resistance inside the battery and reduction in capacity even after cycles and the secondary battery using the same. A first active material layer 2a comprising members occluding and releasing Li onto a collector 1a is formed and a second active material layer 3a as an alloy layer containing metal forming alloy with lithium or lithium and metal not-forming alloy with lithium is formed thereon. The secondary battery is constituted using the negative electrode.
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