发明名称 |
Process for preparing a positive electrode for secondary lithium batteries |
摘要 |
A lithium-manganese oxide LixMn2O4 having a spinel structure as cathode material for secondary lithium batteries is obtained by mixing manganese dioxide with lithium formate and/or lithium acetate (HCOOLi, CH3COOLi) and subsequently heating the mixture for 10 to 100 hours at preferably 600 DEG C to 750 DEG C. The mixture components contain manganese and lithium in a molar ratio Mn : Li = 2: x, where 0.5 < x < 1.5. The end product is extremely finely crystalline and is distinguished by good cycle stability. |
申请公布号 |
EP0645834(B1) |
申请公布日期 |
1997.03.26 |
申请号 |
EP19940108212 |
申请日期 |
1994.05.28 |
申请人 |
VARTA BATTERIE AKTIENGESELLSCHAFT |
发明人 |
STERR, GERHARD, DR. |
分类号 |
C01G45/00;H01M4/50;H01M4/505;H01M10/052;H01M10/36 |
主分类号 |
C01G45/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|