▎ 摘　　要

NOVELTY - Preparing graphene oxide/polyaniline composite material involves dispersing graphene oxide in a dimethyl sulfoxide solvent, and performing ultrasonic dispersion treatment to obtain exfoliated graphene oxide nanosheets. The graphene oxide nanosheets are dispersed in concentrated sulfuric acid, soaked and stirred to obtain acidified graphene oxide nanosheets. Acidified graphene oxide nanosheets are added to a mixed solvent of hydrochloric acid solution and isopropanol, and aniline is dropwise added to it, and slowly stirred to obtain a mixed solution followed by pretreating the mixed solution in an ice bath, and adding ammonium persulfate solution dropwise to the mixed solution under stirring to obtain a mixed body, subjecting mixed body to in-situ oxidative polymerization in an ice bath after washing and drying to obtain graphene oxide/polyaniline composite material. USE - Method for preparing graphene oxide/polyaniline composite material that is utilized in positive electrode of zinc ion battery (claimed). ADVANTAGE - The method enables preparing graphene oxide/polyaniline composite material with good application prospects in large-scale energy storage of water-based zinc ion batteries, and excellent solving of deprotonation and deactivation of pure polyaniline cathode materials during charge and discharge, in renewable and environmentally friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a zinc ion battery, comprising a main body, having positive electrode.