发明名称 |
POROUS SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME |
摘要 |
Provided are a porous silicon-based anode active material including crystalline silicon (Si) particles, and a plurality of pores on surfaces, or the surfaces and inside of the crystalline silicon particles, wherein at least one plane of crystal planes of at least a portion of the plurality of pores includes a (100) plane, and a method of preparing the porous silicon-based anode active material. Since a porous silicon-based anode active material of the present invention may allow volume expansion, which is occurred during charge and discharge of a lithium secondary battery, to be concentrated on pores instead of the outside of the anode active material, the porous silicon-based anode active material may improve life characteristics of the lithium secondary battery by efficiently controlling the volume expansion. |
申请公布号 |
EP2863455(A4) |
申请公布日期 |
2015.07.01 |
申请号 |
EP20140805120 |
申请日期 |
2014.05.23 |
申请人 |
LG CHEM, LTD. |
发明人 |
LEE, YONG JU;LEE, MI RIM;YOO, JUNG WOO;KIM, JE YOUNG |
分类号 |
H01M4/38;H01M4/134;H01M4/1395;H01M10/052 |
主分类号 |
H01M4/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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