发明名称 |
Gallium-doterede lithium-manganoxid-spineller (liGaxMn2-xO4) som aktivt katodemateriale til lithium- eller lithiumion-genop |
摘要 |
An improved process for preparing a spinel type lithium manganese composite oxide represented by the general formula (I): Lix Mn(2-y) My1 By2 O4 wherein M represents at least one member selected form among Al, Cr, Fe, Ni, Co, Ga, and Mg; 0.9<=x<=1.1; and y=y1+y2, wherein 0.002<=y<=0.5, 0<=y1<=0.5, and 0.002<=y2<=0.1 or represented by the general formula (Ia) Lix Mn(2-y) My O4, which is the same as the general formula (I) except that y2 is 0. In formula (Ia) M and x are each as defined above and 0.002<=y<=0.5; and a cathode active material for a lithium ion rechargeable battery comprising the spinel type lithium manganese composite oxide having improved charge-discharge characteristics produce by the above method. The composite oxide thus produce is a novel one improved in cycle characterized, particularly in charge-discharge cycle characterized in a high-temperature (50° C. or above) environment, and hence is very useful form the viewpoint of industry. |
申请公布号 |
DK0925612(T3) |
申请公布日期 |
2000.11.13 |
申请号 |
DK19970907264T |
申请日期 |
1997.03.05 |
申请人 |
CONSIGLIO NAZIONALE DELLE RICERCHE |
发明人 |
PISTOIA, GIANFRANCO,;BELLITTO, CARLO,;ANTONINI, ALESSANDRA, |
分类号 |
C01G45/00;H01M4/131;H01M4/50;H01M4/505;H01M4/62;H01M10/052;H01M10/36;(IPC1-7):H01M4/50;H01M10/40 |
主分类号 |
C01G45/00 |
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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