- 专利标题： POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, POSITIVE POLE PIECE, SECONDARY BATTERY, AND ELECTRICAL APPARATUS
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申请号： EP22961212.2申请日： 2022-10-18
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公开(公告)号： EP4407711A1公开(公告)日： 2024-07-31
- 发明人: LI, Qiang , LIANG, Zibin , WANG, Yuhao , CHENG, Weiming , HE, Jinhua
- 申请人： Contemporary Amperex Technology Co., Limited
- 申请人地址： CN Ningde City, Fujian PRC 352100 No. 2 Xin'gang Road Zhangwan Town Jiaocheng District
- 专利权人： Contemporary Amperex Technology Co., Limited
- 当前专利权人： Contemporary Amperex Technology Co., Limited
- 当前专利权人地址： CN Ningde City, Fujian PRC 352100 No. 2 Xin'gang Road Zhangwan Town Jiaocheng District
- 代理机构： Jacob, Reuben Ellis
- 国际申请： CN2022125840 2022.10.18
- 国际公布： WO2024082121 2024.04.25
- 主分类号： H01M4/36
- IPC分类号： H01M4/36 ; H01M4/505
摘要：
This application provides a positive electrode material, a preparation method of the positive electrode material, a positive electrode plate, a secondary battery, and an electrical device. The positive electrode material includes: a sodium-containing positive electrode material substrate; and a coating layer, covering at least a part of a surface of the sodium-containing positive electrode material substrate. The coating layer includes NaxMyO2, where M includes at least one of B, Si, or P, x > 0, and y > 0.
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