▎ 摘　　要

NOVELTY - Three-dimensional graphene/polyaniline/ phosphotungstic acid composite material in which polyaniline and phosphotungstic acid are self-assembled into microspheres and then loaded onto three-dimensional graphene. The three-dimensional graphene, polyaniline and phosphotungstic acid are used in mass ratio of 12:8:40. USE - Three-dimensional graphene/polyaniline/ phosphotungstic acid composite material used as anode material in lithium ion battery. ADVANTAGE - The three-dimensional graphene/polyaniline/ phosphotungstic acid composite material has increased conductivity, and has good circulation reversibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing three-dimensional graphene/polyaniline/ phosphotungstic acid composite material which involves: (A) dissolving phosphotungstic acid in the mixed solution of water and concentrated sulfuric acid; (B) adding polyaniline with stirring for a period of time under ice bath conditions; (C) centrifuging and drying, to obtain the polyaniline/phosphotungstic acid microsphere; (D) dispersing in water to obtain aqueous solution; (E) adding oxidized graphene aqueous solution; (F) carrying out hydro-thermal reaction; (G) cooling to room; and (H) freeze and drying to obtain the composite material.