NON-AQUEOUS ELECTROLYTE BATTERY SEPARATOR AND NON-AQUEOUS ELECTROLYTE BATTERY

摘要

This non-aqueous electrolyte battery separator is provided with a porous substrate, and an adhesive porous layer containing an adhesive resin and provided on one or both sides of the porous substrate, wherein the ratio of the standard deviation of the weight per area of the adhesive porous layer to the average value (g/m2) of the weight per area of the adhesive porous layer (the standard deviation / average value) is 0.3 or less.