发明名称 |
METHOD FOR PREPARING SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY CONTAINING SAME |
摘要 |
The present invention relates to a method for preparing a silicon-based negative electrode active material, a negative electrode active material for a lithium secondary battery, and a lithium secondary battery comprising the same. More particularly, the method for preparing the silicon-based negative electrode active material comprises: preparing a porous silica (SiO2) and a thin metal film; coating the porous silica onto the thin metal film; reducing the porous silica to a porous silicon by performing heat-treatment of the thin metal film and the porous silica; and obtaining the porous silicon. |
申请公布号 |
US2015140426(A1) |
申请公布日期 |
2015.05.21 |
申请号 |
US201214399333 |
申请日期 |
2012.08.31 |
申请人 |
Park Soojin;Choi Sin Ho;Bang Byoung Man;Cho Jaephil |
发明人 |
Park Soojin;Choi Sin Ho;Bang Byoung Man;Cho Jaephil |
分类号 |
H01M4/04;H01M10/052;H01M4/38 |
主分类号 |
H01M4/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method for preparing a silicon-based negative electrode active material, comprising:
preparing a porous silica (SiO2) and a thin metal film; coating the porous silica onto the thin metal film; reducing the porous silica to a porous silicon by performing heat-treatment of the thin metal film and the porous silica; and obtaining the porous silicon. |
地址 |
Ulsan KR |