| 发明名称 |
CATHODE MATERIALS FOR LITHIUM BATTERY HAVING HIGHER PERFORMANCE |
| 摘要 |
Provided is a method for preparing the heat-treated mixture of an oxide powder (a) represented by Formula I and an oxide powder (b) represented by Formula II,;LiCoO2 (I);LizMO2 (II)wherein 0.95<z<1.1; M=Ni1-x-yMnxCoy, 0<y<0.5, and a ratio of Mn to Ni (x/(1-x-y)) is in the range of 0.4 to 1.1, comprising mixing (i) a Co-containing precursor, (ii) an Mn—Ni-containing precursor, and (iii) optionally, an Li-containing precursor, and heat-treating the mixture at a temperature of more than 400° C. under an oxygen-containing atmosphere. |
| 申请公布号 |
US2015090928(A1) |
申请公布日期 |
2015.04.02 |
| 申请号 |
US201414565558 |
申请日期 |
2014.12.10 |
| 申请人 |
LG Chem, Ltd. |
发明人 |
Paulsen Jens M.;Park Hong-Kyu;Shin Sun Sik;Park Sinyoung;Cha Hyeyun |
| 分类号 |
C01G53/00 |
主分类号 |
C01G53/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for preparing the heat-treated mixture of an oxide powder (a) represented by Formula I and an oxide powder (b) represented by Formula II, wherein a mixing ratio of the oxide powder (a):oxide powder (b) is in the range of 30:70 to 90:10, the oxide powder (a) is monolithic particles having a D50 of more than 10 μm, and the oxide powder (b) is agglomerated particles having a D50 of less than 10 μm, and heat treatment is carried out at a temperature of 400° C. or higher:
LiCoO2 (I) LizMO2 (II) wherein 0.95<z<1.1; M=Ni1-x-yMnxCoy, 0<y<0.5, and a ratio of Mn to Ni (x/(1-x-y)) is in the range of 0.4 to 1.1, comprising mixing (i) a Co-containing precursor, (ii) an Mn—Ni-containing precursor, and (iii) optionally, an Li-containing precursor, and heat-treating the mixture at a temperature of more than 400° C. under an oxygen-containing atmosphere. |
| 地址 |
Seoul KR |
