Separation membrane including laser-induced graphene carbonized layer and lithium-sulfur battery including the separation membrane

摘要

The present invention relates to a separation membrane for an electrochemical element, wherein the separation membrane includes a non-woven fabric substrate, and at least one side surface of the non-woven fabric substrate is carbonized from the surface of the non-woven fabric substrate to a predetermined depth The electrode reaction layer may be disposed on the outermost side of at least one of both surfaces of the separation membrane.