发明名称 |
CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES WITH HIGH SAFETY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERIES COMPRISING THE SAME |
摘要 |
The present invention relates to a cathode active material for lithium secondary batteries with high safety, a method of preparing the same and lithium secondary batteries comprising the same. The cathode active material of the present invention comprises a lithium metal oxide secondary particle core portion formed by aggregation of lithium metal oxide primary particles; and a shell portion formed by coating the secondary particle core portion with an olivine-structured lithium iron phosphate oxide. The cathode active material of the present invention allows to manufacture lithium secondary batteries with improved safety, especially overcharge characteristics.
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申请公布号 |
US2010203388(A1) |
申请公布日期 |
2010.08.12 |
申请号 |
US20070528133 |
申请日期 |
2007.10.31 |
申请人 |
DAEJUNG EM CO., LTD.;KOKAM CO., LTD. |
发明人 |
KIM SEONG-BAE;KIM WOO-SEONG;HONG JI-JUN;KOH SUNG-TAE;HEO YOON-JEONG |
分类号 |
H01M4/525;H01M4/26;H01M4/485;H01M4/50;H01M4/505;H01M4/52;H01M4/58;H01M10/0525;H01M10/36 |
主分类号 |
H01M4/525 |
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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