- 专利标题： LITHIUM ION BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL
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申请号： EP22820289.1申请日： 2022-06-08
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公开(公告)号： EP4354545A1公开(公告)日： 2024-04-17
- 发明人: KIMURA, Yuta , MINAMI, Kazuki
- 申请人： Daido Steel Co., Ltd.
- 申请人地址： JP Nagoya-shi Aichi 461-8581 1-10, Higashisakura 1-chome Higashi-ku
- 专利权人： Daido Steel Co., Ltd.
- 当前专利权人： Daido Steel Co., Ltd.
- 当前专利权人地址： JP Nagoya-shi Aichi 461-8581 1-10, Higashisakura 1-chome Higashi-ku
- 代理机构： Diehl & Partner
- 优先权： JP 2021097385 2021.06.10
- 国际申请： JP2022023207 2022.06.08
- 国际公布： WO2022260110 2022.12.15
- 主分类号： H01M4/38
- IPC分类号： H01M4/38 ; C22C13/00 ; H01M4/36
摘要：
The present invention relates to a lithium ion battery negative electrode active material that includes an Si phase, an Si-Zr compound phase, an Si-X compound phase, and an Sn-Cu compound phase, X being at least one element selected from the group that consists of Fe, Ni, Co, Mn, Ti, V, and Cr, the Sn-Cu compound phase fraction of the whole being 0.1-18 mass%, and the Si phase fraction being 10-90 mass%.
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