发明名称 |
POLYOLEFIN MICROPOROUS MEMBRANE, SEPARATOR FOR CELL, AND CELL |
摘要 |
The present invention provides a polyolefin microporous film in which it is possible to prevent degradation in the air permeability of a separator due to high-pressure press-working during the procedure of manufacturing a cell, the polyolefin microporous film having exceptional compression resistance. In addition, using this polyolefin microporous film makes it possible to provide a cell having exceptional cycle characteristics. A polyolefin microporous film in which the rate of change in the air permeation resistance after 5 minutes of heat-compression at a temperature of 90°C and a pressure of 5.0 MPa is 50% or less, and the rate of change in the film thickness after 5 minutes of heat-compression at a temperature of 90°C and a pressure of 5.0 MPa is 10% or less in relation to the film thickness of the polyolefin microporous film before the heat-compression. |
申请公布号 |
WO2015194504(A1) |
申请公布日期 |
2015.12.23 |
申请号 |
WO2015JP67178 |
申请日期 |
2015.06.15 |
申请人 |
TORAY BATTERY SEPARATOR FILM CO., LTD. |
发明人 |
HIROTA, MINORI;KIKUCHI, SHINTARO;MITSUOKA, HIDETO |
分类号 |
H01M2/16;C08J9/28 |
主分类号 |
H01M2/16 |
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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