发明名称 |
Cathode active material, method of preparing the same, and cathode and lithium battery applying the material |
摘要 |
Composite cathode active materials comprising a composite oxide and an acid treated with an organic solvent are provided. The composite cathode active materials are prepared by treating mixtures of nickel-based composite oxides and organic acids with organic solvents. The active materials suppress gelation of the electrode slurries for a long period of time, even when the active materials are mixed with fluorine-based polymers, by decreasing the basicity of the slurries and the amount of lithium present on the surfaces of the active materials. As a result, electrode slurries having high stability can be prepared. Cathodes and lithium batteries comprising the slurries have excellent charge-discharge characteristics, including high capacity and excellent high rate discharge characteristics.
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申请公布号 |
US2006204850(A1) |
申请公布日期 |
2006.09.14 |
申请号 |
US20060359983 |
申请日期 |
2006.02.21 |
申请人 |
HAM YONG-NAM;KIM GUE-SUNG;CHOI YOUNG-MIN |
发明人 |
HAM YONG-NAM;KIM GUE-SUNG;CHOI YOUNG-MIN |
分类号 |
H01M4/131;H01M4/1391;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/0525;H01M10/0587;H01M10/36 |
主分类号 |
H01M4/131 |
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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