发明名称 |
Lithium secondary battery |
摘要 |
A lithium secondary battery having improved load characteristics such as high rate discharge properties is obtained by using a mixed cathode active material comprising a mixture of lithium-containing manganese oxide having a spinel type crystal structure and lithium-containing cobalt oxide, wherein the cathode collector retains mixed cathode active material in such a manner that the mixing ratio of lithium cobaltate X thereof should fall in a range of 0.1 ≤ X ≤ 0.9, that the bulk density Y (g/cm<3>) of the cathode mixed agent should be confined in a range satisfying the relation of 0.5X + 2.7 ≤ Y ≤ 0.6X + 3.3, and that the mean particle diameter of spinel type lithium manganate should be greater than the mean particle diameter of lithium cobaltate. |
申请公布号 |
EP1237213(A2) |
申请公布日期 |
2002.09.04 |
申请号 |
EP20020003999 |
申请日期 |
2002.02.22 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
SUNAGAWA, TAKUYA;TAKAHASHI,MASATOSHI;MIYAMOTO, YOSHIKUMI |
分类号 |
H01M10/05;C01G45/00;H01M4/131;H01M4/36;H01M4/505;H01M4/525;H01M6/16 |
主分类号 |
H01M10/05 |
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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