| 发明名称 |
HOLLOW SILICON-BASED PARTICLES, PREPARATION METHOD THEREFOR, AND ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, CONTAINING SAME |
| 摘要 |
A hollow silicon-based particle including silicon (Si) or silicon oxide (SiO x , 0<x<2) particle including a hollow core part therein, wherein a size of the hollow core part is from 5 nm to 45 µm, and a novel preparation method thereof are provided. Hollow is formed in the silicon-based particle, and volume expansion to the inward/outward of the silicon-based particle may be induced. Thus, the volume expansion of the silicon-based particle to the outward may be decreased, and the capacity properties and the life characteristics of a lithium secondary battery may be improved. According to the novel preparation method of the hollow silicon-based particle of the present invention, mass production is possible, producing rate is faster when compared to a common chemical vapor deposition (CVD) method or a vapor-liquid-solid (VLS) method, and the preparation method of the present invention is favorable when considering processes and safety. |
| 申请公布号 |
EP2835350(A4) |
申请公布日期 |
2015.07.01 |
| 申请号 |
EP20140789764 |
申请日期 |
2014.05.15 |
| 申请人 |
LG CHEM, LTD. |
发明人 |
HAN, GI BEOM;PARK, HONG KYU;JUNG, WANG MO;KANG, SUNG JOONG;JO, CHI HO;RYU, JI HOON |
| 分类号 |
C01B33/12;B82B1/00;C01B33/023;H01M4/36;H01M4/38;H01M4/485;H01M4/62;H01M10/052 |
主分类号 |
C01B33/12 |
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