| abstract |
The present invention provides a separator for a non-aqueous electrolyte battery, which has a porous substrate and an adhesive porous layer provided on one or both surfaces of the porous substrate, the adhesive porous layer includes an adhesive Resin, the ratio of the standard deviation of the weight per unit area of the adhesive porous layer to the average value (g/m 2 ) of the weight per unit area of the adhesive porous layer (standard deviation/average value) is 0.3 the following. |