发明名称 |
METHOD FOR PREPARING NEGATIVE ACTIVE MATERIAL, NEGATIVE ELECTRODE MATERIAL AND LITHIUM ION BATTERY |
摘要 |
Methods of preparing negative active materials and negative active materials are provided herein. The preparation methods include: A) mixing a carbon material, an organic polymer, a Sn-containing compound—optionally with water—to obtain a mixed solution system; B) adding a complexing agent into the mixed solution system obtained in step A optionally while stirring to form an intermediate solution; C) adding a reducing agent into the intermediate solution obtained in step B to a reaction product; D) optionally filtering, washing and then drying the reaction product to obtain the negative active material. |
申请公布号 |
EP2606523(A4) |
申请公布日期 |
2014.08.13 |
申请号 |
EP20110817783 |
申请日期 |
2011.08.16 |
申请人 |
BYD COMPANY LIMITED;SHENZHEN BYD AUTO R&D COMPANY LIMITED |
发明人 |
WANG, QIANG;ZHANG, LU;MA, LI;WU, ZHENYUE;ZHU,YAN |
分类号 |
H01M4/36;H01M4/04;H01M4/131;H01M4/133;H01M4/134;H01M4/1391;H01M4/1393;H01M4/1395;H01M4/38;H01M4/587;H01M10/0525 |
主分类号 |
H01M4/36 |
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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