发明名称 |
POSITIVE ACTIVE MATERIAL FOR LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE SAME |
摘要 |
A positive active material according to one embodiment of the present invention includes an internal bulk part and an external bulk part surrounding the internal bulk part and has a continuous concentration gradient of the metal composition from an interface between the internal bulk part and the external bulk part to the surface of the active material. The provided positive active material in which the metal composition is distributed in a continuous concentration gradient has excellent electrochemical characteristics such as a cycle life, capacity, and thermal stability. |
申请公布号 |
WO2007114557(A1) |
申请公布日期 |
2007.10.11 |
申请号 |
WO2006KR05767 |
申请日期 |
2006.12.27 |
申请人 |
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY;SUN, YANG-KOOK;PARK, BYUNG-CHUN |
发明人 |
SUN, YANG-KOOK;PARK, BYUNG-CHUN |
分类号 |
H01M4/02;H01M4/131;H01M4/50;H01M4/505;H01M4/52;H01M4/525;H01M10/052;H01M10/36 |
主分类号 |
H01M4/02 |
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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