SEPARATOR FOR ELECTROCHEMICAL DEVICES AND METHODS

摘要

A separator for an electrochemical device comprises a porous, ion-permeable material coated, on a surface thereof, a thermally sensitive layer comprising a polymeric material secured with a cross-linked adhesive and an adhesion promoter. The separator can be prepared by disposing, on a surface thereof, a thermally sensitive layer comprising heat-fusible material, a cross-linkable adhesive and an adhesion promoter, all of which dispersed in a solvent having a polar component, a non-polar component and a high boiling point component.