发明名称 |
SEPARATOR FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME |
摘要 |
A separator for a lithium secondary battery includes a high molecular porous film with a shut-down function and a heat-resistant porous layer integrally formed on each side of the high molecular porous film. The heat-resistant porous layers contain a heat-resistant high-molecular material and a ceramic filler. By using the separator, the occurrence of a short-circuit due to the melting and shrinkage of the high molecular porous film is prevented. Also, in the event of a short-circuit and the generation of heat higher than the melting point of the material of the high molecular porous film, the expansion of the short-circuit is prevented, so that the safety of the lithium secondary battery is improved.
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申请公布号 |
US2007281206(A1) |
申请公布日期 |
2007.12.06 |
申请号 |
US20070757234 |
申请日期 |
2007.06.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
FUJIKAWA MASATO;KASAMATSU SHINJI;SHIMADA MIKINARI |
分类号 |
H01M10/50;B05D3/02;H01M2/16 |
主分类号 |
H01M10/50 |
代理机构 |
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地址 |
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