发明名称 |
Process for preparing positive electrode active material, and nonaqueous secondary battery utilizing the same |
摘要 |
A process for preparing lithium nickeloxide (LiNiO2) for use as a positive electrode active material for a nonaqueous secondary battery, which comprises the steps of: (a) using as the raw materials a lithium compound and a nickel compound at least one of which has a melting point not higher than 300 DEG C.; i) in case where both of the lithium compound and the nickel compound have a melting point not higher than 300 DEG C., mixing the above two compounds after their melting, or mixing the above compounds, melting the mixture and mixing the melted mixture; ii) in case where either one of the lithium compound and the nickel compound has a melting point higher than 300 DEG C., mixing said one having a melting point higher than 300 DEG C. with the remaining one before or after its melting; (b)calcining the resulting mixture at a temperature of 700 DEG C. to 950 DEG C. in air or in an atmosphere containing oxygen in a higher concentration than an atmospheric oxygen concentration.
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申请公布号 |
US5985488(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19970823536 |
申请日期 |
1997.03.25 |
申请人 |
SHARP KABUSHIKI KAISHA;TANAKA CHEMICAL CORPORATION |
发明人 |
MITATE, TAKEHITO;TORATA, NAOTO;YONEDA, TETSUYA;MINATO, KAZUAKI;IIDA, TOYOSHI;MAKINO, TETSUSHI;HAMANO, SHIGEYUKI;KAMEDA, NAOYOSHI;INADA, TOMOHIKO |
分类号 |
C01G53/00;H01M4/48;H01M4/485;H01M4/52;H01M4/525;H01M10/0525;H01M10/36;(IPC1-7):H01M4/52;C01G49/00 |
主分类号 |
C01G53/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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