▎ 摘　　要

NOVELTY - Preparing lithium manganese selenite coated material comprises (i) mixing lithium source, manganese source and selenium source, then ball milling to obtain mixed raw material, (ii) heating the mixed raw materials and keeping them warm, followed by cooling, then mixing with graphene, ball milling to obtain the precursor of lithium manganese selenite coating material, and (iii) sintering the lithium manganese selenite coating material precursor, cooling and then grinding to obtain the lithium manganese selenite coating material. USE - The method is useful for preparing lithium manganese selenite coated material. ADVANTAGE - The method: adopts high temperature segmental solid phase method, which ensures surface of the raw material powder particles is smoother, particle size distribution of the particles is more uniform, and agglomeration phenomenon is reduced; is simple, economical, and suitable for industrial production. The lithium manganese selenite coating material: is in the form of powder particles, and has been compounded with graphene, so the electrical conductivity and coating effect are better. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: Lithium manganese selenite coating material, prepared by above method; Coated anode material, comprising anode material and coating material coated on the surface of the anode material, and the coating material is the lithium manganese selenite coating material; Preparing coated anode material, comprising pre-milling the coating material in a ball milling device, and attaching the coating material to the milling beads, further adding anode material into the ball milling equipment, and then performing ball milling for several times to obtain the coated anode material.