| 发明名称 |
METHOD OF PREPARING COMPOSITE CATHODE ACTIVE MATERIAL, COMPOSITE CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM BATTERY CONTAINING THE COMPOSITE CATHODE ACTIVE MATERIAL |
| 摘要 |
Provided are a method of preparing a cathode active material, a composite cathode active material, and a cathode and a lithium battery containing the composite cathode active material. The method includes mixing a transition metal source and a reducing agent to prepare a cathode active material precursor; and mixing and calcining the cathode active material precursor to prepare a lithium transition metal oxide, wherein a supplied amount of the reducing agent is about 0.003 mole/hr or less with respect to 1 mole/hr of a supplied amount of the transition metal source. |
| 申请公布号 |
US2015287990(A1) |
申请公布日期 |
2015.10.08 |
| 申请号 |
US201514617850 |
申请日期 |
2015.02.09 |
| 申请人 |
Samsung SDI Co., Ltd. |
发明人 |
Cho Sang-Woo;Kim Chang-Wook;Kim Ji-Hyun |
| 分类号 |
H01M4/505;H01M10/052;C01G53/00;H01M4/525 |
主分类号 |
H01M4/505 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of preparing a composite cathode active material, the method comprising:
mixing a transition metal source and a reducing agent to prepare a composite cathode active material precursor; and mixing and calcining the composite cathode active material precursor and a lithium source to prepare a lithium transition metal oxide, wherein the reducing agent is supplied at about 0.015 mole/hr or less with respect to 1 mole/hr of the transition metal source. |
| 地址 |
Yongin-si KR |
