▎ 摘　　要

NOVELTY - An anthraquinone-2-carboxylic acid lithium/graphene nanocomposite preparing method involves taking anthraquinone-2-carboxylic acid, adding solvent, stirring to dissolve uniformly, adding lithium hydroxide solution and evaporating the solvent to obtain a product material. The product material is cleaned, dried and heat treated to remove crystal water to give anthraquinone-2-carboxylic acid lithium. The anthraquinone-2-carboxylic acid lithium is dispersed in graphene and placed in ball grinding jar to obtain turbid liquid. The turbid liquid is vacuum-dried to obtain the finished product. USE - Method for preparing anthraquinone-2-carboxylic acid lithium/graphene nanocomposite for use as cathode material in lithium ion battery (claimed). ADVANTAGE - The method enables preparing nanocomposite with improved energy-saving capacity and excellent electrochemical properties, in simple and eco-friendly manner.