发明名称 |
A PROCESS FOR PREPARING A POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERY |
摘要 |
A process for preparing lithium-nickel-manganese-cobalt composite oxide used as a positive electrode material for the lithium ion battery, comprising subjecting a mixture containing a lithium compound and nickel-manganese-cobalt hydroxide to a first-stage sintering and a second-stage sintering, wherein said process further comprises adding a binder and/or binder solution after the first-stage sintering, and the mixture of the binder and/or binder solution and the product of first-stage sintering is sintered in said second-stage sintering. The tap density and volume specific capacity of the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process, come up to 2.4 g/cm<SUP>3</SUP> and 416.4 mAh/cm<SUP>3</SUP>, respectively. Besides, the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process possesses the advantages of high specific capacity and good cycle stability. |
申请公布号 |
WO2007048283(A1) |
申请公布日期 |
2007.05.03 |
申请号 |
WO2006CN00316 |
申请日期 |
2006.03.03 |
申请人 |
BYD COMPANY LIMITED;XIAO, FENG;ZHANG, JIANCHANG;CAO, WENYU;LIU, DENGWEI |
发明人 |
XIAO, FENG;ZHANG, JIANCHANG;CAO, WENYU;LIU, DENGWEI |
分类号 |
H01M4/04;C01G45/02;C01G51/04;C01G53/04;H01M4/48;H01M10/38 |
主分类号 |
H01M4/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|