Separator for nonaqueous secondary battery, and nonaqueous secondary battery

1. A separator for a nonaqueous secondary battery, comprising:

a porous substrate; and

an adhesive porous layer formed as an outermost layer of the separator on at least one side of the porous substrate and containing a carbon material and a polyvinylidene fluoride resin,

the separator having an initial static voltage of 0 V as measured in accordance with JIS L1094, wherein

the mass of the carbon material in the adhesive porous layer is more than 40% and 95% or less of the total mass of the adhesive porous layer, and

the carbon material is at least one member selected from the group consisting of acetylene black, ketjen black, fullerene, graphene, and carbon fibers.

2. The separator for a nonaqueous secondary battery according to claim 1 , wherein the mass of the carbon material in the adhesive porous layer is 70% or more and 95% or less of the total mass of the adhesive porous layer.

3. The separator for a nonaqueous secondary battery according to claim 2 , having a half-life of 0 second as measured in accordance with JIS L1094.

4. The separator for a nonaqueous secondary battery according to claim 1 , having a half-life of 0 second as measured in accordance with JIS L1094.

5. A nonaqueous secondary battery comprising the separator for a nonaqueous secondary battery according to claim 1 .

6. A nonaqueous secondary battery comprising the separator for a nonaqueous secondary battery according to claim 2 .

7. A nonaqueous secondary battery comprising the separator for a nonaqueous secondary battery according to claim 4 .

8. A nonaqueous secondary battery comprising the separator for a nonaqueous secondary battery according to claim 3 .