▎ 摘　　要

NOVELTY - Preparing high-power hard carbon composite material, comprises (i) adding resin to an organic alcohol, dissolving, and adding an inorganic iron salt to obtain a suspension A, (ii) adding ammonium fluoride to graphene oxide solution, dispersing uniformly to obtain solution B, (iii) adding solution B to suspension A, heating at 50-100 ℃, adding a crosslinking agent into it, and passing in an oxidizing gas to obtain a mixture C, and (iv) drying and carbonizing the mixture C to obtain the high-power hard carbon composite material. USE - The method is useful for preparing high-power hard carbon composite material. ADVANTAGE - The method solves the problems of poor power performance, initial efficiency and poor cycle performance of hard carbon in the existing technology. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for high-power hard carbon composite material, obtained by the above method, comprising hard carbon and doped ferric fluoride, where the mass ratio of ferric fluoride accounts for 1-10 wt.% of the total amount of the composite material.