发明名称 |
SECONDARY BATTERY WITH IMPROVED SAFETY |
摘要 |
A secondary battery using at least two different cathode active materials is provided to inhibit heat emission caused by generation of overcurrent, thereby realizing improved safety. A secondary battery includes a cathode comprising at least two kinds of lithium-containing metal composite oxide having different potentials Vs. lithium potential(Li/Li+) and resistances. The cathode comprises: (a) a first lithium-containing metal composite oxide; and (b) a second lithium-containing metal composite oxide having a higher resistance as compared with the first lithium-containing metal composite oxide and a lower potential as compared with the lithium potential(Li/Li+). |
申请公布号 |
KR20080069930(A) |
申请公布日期 |
2008.07.29 |
申请号 |
KR20080007655 |
申请日期 |
2008.01.24 |
申请人 |
LG CHEM. LTD. |
发明人 |
PARK, PIL KYU;PARK, YOUNG SUN;OH, BYUNG HUN;KIM, KI TAE;LEE, MYOUNG HUN;LEE, JAE WON |
分类号 |
H01M4/13;H01M4/36;H01M4/525;H01M4/58;H01M10/02;H01M10/0525 |
主分类号 |
H01M4/13 |
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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