▎ 摘　　要

NOVELTY - Separator comprises a separator body having a composite material coated, and the composite material comprising a reduced graphene oxide (rGO) having an oxygen content of from 5-40 wt.% by total weight of rGO, an electrically conductive carbon black, and a binder. USE - Separator for an electrical energy storage device or battery. ADVANTAGE - The separator is provided with carbon materials, with high specific surface, abundant pore structure, high conductivity and rich oxygen-containing functional groups, can both physically and chemically adsorb polysulfides, reducing the shuttling effect of poly sulfides. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of forming a separator for an electrical energy storage device or battery, which involves combining a reduced graphene oxide (rGO) having an oxygen content of from 5-40 wt.%, an electrically conductive carbon black, and a binder to form a composite material, and coating a separator body with the composite material so that composite material is coated.