发明授权
- 专利标题: Anode for secondary battery and secondary battery therewith
- 专利标题(中): 二次电池阳极和二次电池
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申请号: US10103701申请日: 2002-03-25
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公开(公告)号: US06890685B2公开(公告)日: 2005-05-10
- 发明人: Hironori Yamamoto , Jiro Iriyama , Tamaki Miura , Mitsuhiro Mori , Koji Utsugi
- 申请人: Hironori Yamamoto , Jiro Iriyama , Tamaki Miura , Mitsuhiro Mori , Koji Utsugi
- 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: Young & Thompson
- 优先权: JP2001-090169 20010327
- 主分类号: H01M4/13
- IPC分类号: H01M4/13 ; H01M4/139 ; H01M4/36 ; H01M4/40 ; H01M4/48 ; H01M4/485 ; H01M4/58 ; H01M4/587 ; H01M10/052 ; H01M10/36 ; H01M10/42
摘要:
This invention relates to an anode for a secondary battery capable of occluding and releasing lithium ions, the anode having a multi-layer structure comprising: a first layer containing carbon as a main component; and a second layer as a main component containing a lithium-occluding material film, the film capable of occluding lithium more than a theoretical lithium-occlusion capacity for carbon, as well as a secondary battery using the anode. This invention can provide a secondary battery with a substantially improved battery capacity in a range where the battery is actually used, while having a higher charge-discharge efficiency and good cycle properties.
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