| 发明名称 |
METHOD OF MANUFACTURING COMPOSITE POSITIVE ACTIVE MATERIAL, COMPOSITE POSITIVE ACTIVE MATERIAL MANUFACTURED THEREBY, AND POSITIVE ELECTRODE AND LITHIUM BATTERY INCLUDING THE COMPOSITE POSITIVE ACTIVE MATERIAL |
| 摘要 |
Provided are a method of manufacturing a composite positive active material, a composite positive active material manufactured by the method, and a positive electrode and a lithium battery including the composite positive active material. The method may include acid-treating an overlithiated lithium transition metal oxide; and applying fluorine onto the acid-treated overlithiated lithium transition metal oxide using a fluorine compound. |
| 申请公布号 |
US2015210557(A1) |
申请公布日期 |
2015.07.30 |
| 申请号 |
US201414456986 |
申请日期 |
2014.08.11 |
| 申请人 |
Samsung SDI Co., Ltd. |
发明人 |
Song Jay-Hyok;Kapylou Andrei;Park Jun-Seok;Kim Chang-Wook;You Yong-Chan;Kang Sun-Ho |
| 分类号 |
C01D15/02;H01M4/505;H01M10/052;H01M4/525 |
主分类号 |
C01D15/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of manufacturing a composite positive active material, the method comprising:
acid-treating an overlithiated lithium transition metal oxide represented by Formula 1 or Formula 2; and applying fluorine onto the acid-treated overlithiated lithium transition metal oxide:
xLi2MO3-(1−x)LiM′O2 Formula 1 wherein M has an average oxidation number +4 and is at least one transition metal selected from a Group 4 transition metal and a Group 5 transition metal of the Periodic Table, M′ has an average oxidation number +3 and is selected from a Group 4 transition metal and a Group 5 transition metal of the Periodic Table, and
0<x<1xLi2MO3-x′LiM′O2-x″Li1+dM″2−dO4 Formula 2 wherein M has an average oxidation number +4 and is at least one transition metal selected from a Group 4 transition metal and a Group 5 transition metal of the Periodic Table, M′ has an average oxidation number +3 and is at least one transition metal selected from a Group 4 transition metal and a Group 5 transition metal of the Periodic Table, M″ has mixed average oxidation numbers +3 and +4 and is at least one transition metal selected from a Group 4 transition metal and a Group 5 transition metal of the Periodic Table, and
x+x′+x″=1; 0<x<1, 0<x′<1, 0<x″<1; and 0≦d≦0.33. |
| 地址 |
Yongin-si KR |
