发明名称 |
METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS SECONDARY BATTERIES, POSITIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY |
摘要 |
A method for producing a positive electrode active material for nonaqueous secondary batteries, the positive electrode active material using a polyanionic active material. The method includes the steps of mixing raw materials of the positive electrode active material with each other, pre-calcining the mixed raw materials in an oxidizing atmosphere at a temperature ranging from 400 to 600° C. both inclusive, mixing carbon or an organic substance with a pre-calcinated material yielded through the pre-calcining step, and the step of calcining the pre-calcinated material, with which the carbon or the organic substance is mixed in a reducing atmosphere or an inert atmosphere. |
申请公布号 |
US2015140431(A1) |
申请公布日期 |
2015.05.21 |
申请号 |
US201314390273 |
申请日期 |
2013.03.15 |
申请人 |
Hitachi Metals, Ltd. |
发明人 |
Kitagawa Kan;Yuasa Toyotaka |
分类号 |
H01M4/136;H01M4/62;H01M4/58;H01M4/131;H01M4/485 |
主分类号 |
H01M4/136 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
Minato-ku, Tokyo JP |