- 专利标题： Core-shell type anode active material for lithium secondary battery, method for preparing the same and lithium secondary battery comprising the same
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申请号： US12740906申请日： 2007-11-06
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公开(公告)号： US09647262B2公开(公告)日： 2017-05-09
- 发明人: Ji-Jun Hong , Sung-Tae Ko , Yoon-Jeong Heo
- 申请人： Ji-Jun Hong , Sung-Tae Ko , Yoon-Jeong Heo
- 申请人地址： KR Siheung, Geonggi-do
- 专利权人： Kokam Co., Ltd.
- 当前专利权人： Kokam Co., Ltd.
- 当前专利权人地址： KR Siheung, Geonggi-do
- 代理机构： Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
- 代理商 Kongsik Kim; Linda B. Azrin
- 优先权： KR10-2007-0112289 20071105
- 国际申请： PCT/KR2007/005573 WO 20071106
- 国际公布： WO2009/061013 WO 20090514
- 主分类号： H01M4/131
- IPC分类号： H01M4/131 ; H01M4/133 ; H01M4/485 ; H01M4/583 ; H01M10/052
摘要：
The present invention relates to a core-shell type anode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery comprising the same. The anode active material for a lithium secondary battery according to the present invention comprises a carbon based material core portion; and a shell portion formed outside of the carbon based material core portion by coating the carbon based material core portion with a spinel-type lithium titanium oxide. The anode active material for a lithium secondary battery according to the present invention has the metal oxide shell portion, and thus has the improved conductivity, a high output density, and consequently excellent electrical characteristics.
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