▎ 摘　　要

NOVELTY - Preparation of fiber composite energy storage material involves subjecting carboxylated graphene to acid chloride treatment, ultrasonically scattering in 1-allyl-3-methylimidazolium chloride ionic liquid, placing wood cellulose in 1-allyl-3-methylimidazolium chloride ionic liquid under nitrogen protection for a period of time, adding ultrasonic mixture of chlorinated graphene chloride and 1-allyl-3-methylimidazolium chloride ionic liquid, controlling the temperature at 30 degrees C, reacting for 1 hour, adding deionized water, ultrasonically dispersing, soaking in deionized water, washing, drying to obtain graphene grafted cellulose, stirring mixture of graphene grafted cellulose and wood fiber, melt blending the mixture and maleic anhydride grafted polyethylene glycol in a torque rheometer, molding the mixture at 50 degrees C and leaving still for 48 hours. USE - Preparation of fiber composite energy storage material.