▎ 摘　　要

NOVELTY - Non-aqueous potassium ion battery anion material, is claimed. The anion material is antimony nano-particle modified three-dimensional graphene foam anion material, which is composed of three-dimensional graphene foam and antimony nano particles grown on the three-dimensional graphene foam. USE - Used as non-aqueous potassium ion battery anion material. ADVANTAGE - The material has stable frame structure, large specific surface area and excellent electron and ion conductivity, and exhibits excellent potassium storage performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the material, comprising (i) dissolving cobalt nitrate hexahydrate, ammonium sulfate and polyvinylpyrrolidone in deionized water to prepare a mixed solution, grounding the dried product into powder, and placing the powder in a corundum crucible, (ii) placing the corundum crucible in a tube furnace and reacting for a period of time in an argon-hydrogen mixed atmosphere, when the furnace is cooled to room temperature, the product is a three-dimensional graphene foam modified with cobalt nanoparticles, and (iii) dissolving the cobalt nano-particle modified three-dimensional graphene foam in a mixed solution of glycerol and methanol, then add antimony trichloride and stirring and mixing well, transferring the resulting solution to the reaction kettle, and sealing and reacting for a period of time, washing the resulting precipitate with methanol, placing in a tube furnace and reacting for a period of time under an argon atmosphere, cooling the tube furnace to room temperature.