发明名称 |
BATTERY HAVING ELECTRICAL INSULATION CAPABILITY |
摘要 |
Disclosed is a battery including a cathode and an anode wound to face each other with a separator interposed therebetween. Both surfaces of a cathode collector are provided with cathode active-material coating layers so as not to provide a cathode uncoated part at a winding beginning portion of the cathode. The cathode uncoated part for installation of a cathode lead is provided only at a winding ending portion of the cathode. An insulator tape is attached to the boundary of the cathode active-material coating layer facing the anode at the winding ending portion of the cathode. Providing the insulator tape to the boundary of the cathode active-material coating layer at a position where a non-coating part not containing the cathode active-material coating layer and an anode active-material coating layer face each other achieves enhanced electrical insulation capability and consequential safety of the battery. |
申请公布号 |
EP2258019(A2) |
申请公布日期 |
2010.12.08 |
申请号 |
EP20090732958 |
申请日期 |
2009.02.27 |
申请人 |
LG CHEM, LTD. |
发明人 |
LEE, JIN SOO;LEE, KIL YOUNG;KIM, DONG MYUNG |
分类号 |
H01M10/05;H01M2/16;H01M2/26;H01M10/04 |
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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