▎ 摘　　要

NOVELTY - The material comprises a material body whose surface is sequentially coated with a lithium oxide layer and a carbon coating layer from the inside to the outside. The content of the lithium ferrite layer is 1-5 wt.% and based on the whole anode material. The content of the carbon coating layer is 0.5-3 wt.%. The soluble ferrous salt is ferrous sulfate, ferrous nitrate and/or ferrous chloride. The phosphorus source is phosphoric acid, hydrogen phosphate salt and/or dihydric phosphate. The lithium source is lithium carbonate, lithium hydroxide, lithium acetate and/or lithium nitrate. The carbon source is organic carbon and inorganic carbon, glucose, white granulated sugar, sucrose, polyethylene glycol, graphite, and graphene. The soluble ferrous salt is ferrous sulfate, ferrous nitrate and/or ferrous chloride. USE - The double-coated anode material is used for an iron-based lithium phosphate battery. ADVANTAGE - The material coats the lithium iron phosphate on the surface of the iron phosphate lithium through carbon coating treatment to form a double-coated iron phosphate material lithium anode to realize excellent cycle performance, processing performance and safety performance of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a double-coated anode material.