发明名称 |
POLYOLEFIN MICROPOROUS MEMBRANE |
摘要 |
The invention relates to a microporous membrane, which is provided with high safety even under a condition that the interior temperature of a battery becomes high, and which has high permeability and high mechanical strength at the same time. <??>The polyolefin microporous membrane is characterized by a membrane thickness of 5 to 50 mu m, a void content of 30 to 60%, a gas transmission rate of 40 to 300 sec/100cc/20 mu m, a piercing strength of not less than 2.5 N/20 mu m and a break through temperature of not lower than 110 DEG C. <??>The separator in accordance with the present invention is used to exhibit high safety under a high temperature condition as well as high permeability, and therefore it is particularly useful as a separator for miniaturized high capacity batteries of a non-aqueous electrolytic solution type. |
申请公布号 |
EP1464669(B1) |
申请公布日期 |
2016.11.30 |
申请号 |
EP20030791293 |
申请日期 |
2003.08.26 |
申请人 |
ASAHI KASEI KABUSHIKI KAISHA |
发明人 |
ADACHI, MASAYUKI;IKEMOTO, TAKASHI;SOGO, HIROSHI |
分类号 |
C08J9/26;B01D65/10;B01D67/00;B01D69/02;B01D71/26;H01M2/14;H01M2/16 |
主分类号 |
C08J9/26 |
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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