| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a separator for a nonaqueous secondary battery comprising a microporous polyolefin film and a heat-resistant porous layer and achieving high productivity and a high level of safety of a battery. <P>SOLUTION: The separator for a nonaqueous secondary battery comprises a microporous polyolefin film, a heat-resistant porous layer on one side or both sides of the microporous polyolefin film, and an adhesive layer provided between the microporous polyolefin film and the heat-resistant porous layer and containing at least one kind of ingredient selected from thermoplastic elastomers and rubbers. <P>COPYRIGHT: (C)2012,JPO&INPIT |
