▎ 摘　　要

NOVELTY - A crystal lithium salt-graphene composite material comprises (wt.%) lithium salt (1-99) and graphene (1-99). USE - Lithium salt-graphene composite material used in electrode material (claimed). ADVANTAGE - The lithium salt-graphene composite material has high stability and electric conductivity; and preparation is simple and low cost, and suitable for industrial product. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of lithium salt-graphene composite material comprising oxidizing with natural flaky graphite, potassium permanganate and concentrated sulfuric acid to obtain graphite oxide, dissolving in water, mixing lithium salt with graphite oxide system, heating mixed system of lithium salt and graphite oxide to remove moisture, crushing, reducing with lithium salt and graphite mixed powder at 200-1000 degrees C in reduction atmosphere and crystallizing for 2-24 hours to obtain lithium salt-graphene composite material.