▎ 摘　　要

NOVELTY - A fluorine and nitrogen-doped graphene-sheet material preparing method involves mixing a salt template of a mixed material of lithium chloride and potassium chloride, glucosamine hydrochloride with polyvinylidene fluoride and ball-milled uniformly, carbonizing under an argon atmosphere, washing with acid washing, and finally vacuum drying to obtain the finished product. USE - Method for preparing fluorine and nitrogen-doped graphene-sheet material for supercapacitor energy storage materials (claimed). ADVANTAGE - The method enables preparing fluorine and nitrogen-doped graphene-sheet material with high mass specific capacity, better cycle stability and electrical conductivity.