发明申请
US20140170485A1 METHOD FOR PREPARING ANODE ACTIVE MATERIAL, ANODE ACTIVE MATERIAL PREPARED THEREFROM AND LITHIUM SECONDARY BATTERY HAVING THE SAME
有权
制备阳极活性材料的方法，其制备的阳极活性材料和具有该阳极材料的锂二次电池
- 专利标题： METHOD FOR PREPARING ANODE ACTIVE MATERIAL, ANODE ACTIVE MATERIAL PREPARED THEREFROM AND LITHIUM SECONDARY BATTERY HAVING THE SAME
- 专利标题（中）： 制备阳极活性材料的方法，其制备的阳极活性材料和具有该阳极材料的锂二次电池
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申请号： US14185182申请日： 2014-02-20
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公开(公告)号： US20140170485A1公开(公告)日： 2014-06-19
- 发明人: Mi-Rim Lee , Yong-Ju Lee , Je-Young Kim , Hye-Ran Jung
- 申请人： LG Chem, Ltd.
- 申请人地址： KR Seoul
- 专利权人： LG CHEM, LTD.
- 当前专利权人： LG CHEM, LTD.
- 当前专利权人地址： KR Seoul
- 优先权： KR10-2011-0108782 20111024; KR10-2012-0118431 20121024
- 主分类号： C22C29/12
- IPC分类号： C22C29/12 ; H01M4/583
摘要：
The present invention relates to a method for preparing an anode active material, comprising (S1) forming a shell being a coating layer comprising a carbon material on the surface of a core comprising silicon oxide particles, to obtain a silicon oxide-carbon composite having a core-shell structure; (S2) mixing the silicon oxide-carbon composite with an oxygen-containing lithium salt, followed by heat treatment to produce a silicon oxide-lithium alloy, thereby obtaining a (SiOx-Liy)—C (0
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