| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a microporous membrane pile-up capable of producing a micro porous membrane pile-up usable to a separator having excellent cycling property. <P>SOLUTION: The microporous membrane pile-up comprises a plurality of membranes containing at least one micro porous membrane which are obtained by piling them up, wherein a peeling-off strength between the microporous membrane and a peeling-off membrane adjacent to the micro porous membrane is 0.5-250 g/25 mm. <P>COPYRIGHT: (C)2011,JPO&INPIT |
