Bulk resistance and ionic conductivity of the Celgard 2400 separator and PSA, PAN, PSA/PSA/PSA composite nanofibrous membranes.

Samples	Bulk resistances/(Ω)	Ionic conductivity/(S cm−1)
Celgard	18.434	0.11 × 10−3
PSA	0.36023	5.41 × 10−3
PP4P	0.6463	2.01 × 10−3
PP6P	0.53373	2.43 × 10−3
PP8P	0.96392	2.02 × 10−3
PAN	16.055	0.12 × 10−3