| 摘要 |
PROBLEM TO BE SOLVED: To provide a separator which is excellent in safety and is suitable for a nonaqueous secondary battery, and to provide a nonaqueous secondary battery using the same.SOLUTION: In the separator for a nonaqueous secondary battery according to the present invention, a polyolefin porous film or a porous film having a heat-resistant layer on at least one surface of a polyolefin porous film contains carbonate particles coated with a resin. |
