▎ 摘　　要

NOVELTY - Graphene is prepared by taking sodium metal and halogenated hydrocarbon as raw materials, and reacting in a solvent in an inert environment. USE - Method for preparing graphene (claimed). ADVANTAGE - The method is simple; has easy operation, low cost, high yield and better product performance; and exhibits important action in industrialized production of graphene and relative products, e.g. lithium ion battery. The prepared graphene has improved impurity.