发明名称 |
A SECONDARY BATTERY WITH IMPROVED SAFETY |
摘要 |
The present invention provides a cathode comprising two or more lithium-containing metal composite oxides, having different potentials versus lithium (Li/Li +) and different impedances, the cathode comprising: (a) a first lithium-containing metal composite oxide; and (b) a second lithium-containing metal composite oxide, which has a high impedance and low potential versus lithium (Li/Li+), compared to those of the first lithium-containing metal composite oxide. In the invention, two or more lithium-containing metal composite oxides are used in combination as cathode components in a battery, whereby, when a short circuit occurs in the battery, the instantaneous flow of a large amount of current can be minimized and, at the same time, the accumulation of heat in the battery can be reduced, thus ensuring the safety of the battery. |
申请公布号 |
WO2008091074(A1) |
申请公布日期 |
2008.07.31 |
申请号 |
WO2008KR00275 |
申请日期 |
2008.01.16 |
申请人 |
LG CHEM, LTD.;PARK, PIL-KYU;PARK, YOUNG-SUN;OH, BYUNG-HUN;KIM, KI-TAE;LEE, MYOUNG-HUN;LEE, JAE-WON |
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;H01M4/525;H01M4/58;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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