- 专利标题： NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
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申请号： EP21911496.4申请日： 2021-12-21
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公开(公告)号： EP4266411A1公开(公告)日： 2023-10-25
- 发明人: YOU, Seung Jae , PARK, Sun Jong , KANG, Eun-Tae , KIM, Yong Jung , WOO, Jung Gyu , CHO, Moonkyu , PARK, Sangeun
- 申请人： POSCO Holdings Inc. , RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
- 申请人地址： KR Seoul 06194 440, Teheran-ro Gangnam-gu; KR Pohang-si, Gyeongsangbuk-do 37673 67 Cheongam-ro, Nam-gu,
- 代理机构： Potter Clarkson
- 优先权： KR20200179454 20201221
- 国际公布： WO2022139429 20220630
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/38 ; H01M4/587 ; H01M4/62 ; H01M10/052
摘要：
The present embodiments relate to a negative electrode active material for a lithium secondary battery, a method for preparing the same, and a lithium secondary battery comprising the same.
The negative electrode active material for a lithium secondary battery, according to one embodiment, comprises a silicon-carbon composite comprising silicon nanoparticles and a carbon matrix, and can have a degree of oxidation that is less than or equal to 10.5%.
The negative electrode active material for a lithium secondary battery, according to one embodiment, comprises a silicon-carbon composite comprising silicon nanoparticles and a carbon matrix, and can have a degree of oxidation that is less than or equal to 10.5%.
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