| 发明名称 |
CATHODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME |
| 摘要 |
The present invention provides a positive active material for a secondary lithium battery, a method of preparing the positive active material, and a secondary lithium battery including the positive active material, wherein the positive active material includes a lithium metal composite oxide core represented by the following Chemical Formula 1, and a coating layer including a fluorine compound and positioned at a shell of the lithium metal composite oxide core.;LiwNixCoyMn1-x-y-zMzO2 [Chemical Formula 1];(1.2≦w≦1.5, 0<x<1, 0≦y<1, 0.5≦1-x-y-z, and M is at least one metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr). |
| 申请公布号 |
US2014242463(A1) |
申请公布日期 |
2014.08.28 |
| 申请号 |
US201214347404 |
申请日期 |
2012.09.18 |
| 申请人 |
KOREA ELECTRONICS TECHNOLOGY INSTITUTE |
发明人 |
Song Jun Ho;Kim Young Jun;Kim Jeom-Soo;Cho Woo Suk;Kim Jae-Hun;Kim Jin Hwa |
| 分类号 |
H01M4/36;H01M4/1391;H01M4/04 |
主分类号 |
H01M4/36 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A positive active material for a secondary lithium battery, comprising:
a lithium metal composite oxide core represented by the following Chemical Formula 1; and a coating layer positioned on the lithium metal composite oxide core and comprising a fluorine compound:
LiwNixCoyMn1-x-y-zMzO2 [Chemical Formula 1] wherein, in the above Chemical Formula 1, 1.2≦w≦1.5, 0<x<1, 0≦y<1, 0.5≦1-x-y-z, and M is at least one metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr. |
| 地址 |
Seongnam-si, Gyeonggi-do KR |
