发明授权
- 专利标题： Negative electrode active material for lithium ion secondary battery and lithium ion secondary battery
- 专利标题（中）： 锂离子二次电池和锂离子二次电池用负极活性物质
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申请号： US13138502申请日： 2010-02-26
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公开(公告)号： US09159992B2公开(公告)日： 2015-10-13
- 发明人: Yasuhiro Wakizaka , Takumi Sugimoto
- 申请人： Yasuhiro Wakizaka , Takumi Sugimoto
- 申请人地址： JP Tokyo
- 专利权人： Zeon Corporation
- 当前专利权人： Zeon Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2009-046987 20090227
- 国际申请： PCT/JP2010/053111 WO 20100226
- 国际公布： WO2010/098452 WO 20100902
- 主分类号： H01M4/60
- IPC分类号： H01M4/60 ; H01M10/00 ; H01M4/64 ; H01M4/583 ; C25D5/56 ; B05D5/12 ; H01M4/137 ; H01M4/1399 ; H01M4/36 ; H01M4/62 ; H01M10/0525 ; H01M4/04 ; H01M4/02
摘要：
Disclosed is a negative electrode active material for a lithium ion secondary battery, which is capable of further improving the charge/discharge cycle characteristics. Also disclosed is a lithium ion secondary battery which uses the negative electrode active material for a lithium ion secondary battery. The negative electrode active material for a lithium ion secondary battery is composed of composite particles each of which has a core/shell structure configured of a core part that is formed from a polymer and a shell part that is formed of a metal layer. The metal layer of the shell part is formed by metal plating. Preferably, the metal layer comprises at least a metal layer (a1) that is formed by electroless plating and a metal layer (a2) that is formed by electrolytic plating, in this order from the core part side.
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