| abstract |
An embodiment of the present invention provides a separator for a non-aqueous secondary battery, the separator comprising: a porous substrate; a heat-resistant porous layer which is disposed on one or both surfaces of the porous substrate, and contains a binder resin and inorganic particles having an average primary particle size of at least 0.01 μm and less than 0.45 μm; and an adhesive layer which is disposed on one or both surfaces of a laminate of the porous substrate and the heat-resistant porous layer, with adhesive resin particles adhered to the laminate. |