▎ 摘　　要

NOVELTY - Preparing hydroxide anode precursor comprises (i) adding nickel cobalt manganese metal salt solution, dopant solution, precipitator solution and complexing agent solution and flowing into the bottom liquid, carrying out co-precipitation reaction to obtain the precursor to be processed; (ii) mixing precursor to be treated of step (i), graphene and organic solvent and coating to obtain a graphene-coated hydroxide anode precursor. USE - The hydroxide anode precursor is useful in anode material of lithium-ion battery (all claimed). ADVANTAGE - The method: adds doping element in the preparation stage of the anode precursor on the basis of doping, adopts the organic solvent coating of the graphite alkene, obtains precursor material, which has stable structure, when the material is anode sintering, can reduce the sintering temperature, promote the entering of the lithium, can reduce the lithium/nickel mixed row, structure of the stable material, reduce the resistivity of the material, and the doping element is distributed uniformly, and improve the circulation stability and capacity of the anode material. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: hydroxide anode precursor comprising a core and the core surface of the coating, where the inner core comprises a doped hydroxide material and coating layer comprises graphene coating layer, preferably, the content of the doped element in the doped hydroxide material is 1000-10000 ppm; anode material, is obtained by mixing and sintering the hydroxide precursor and a lithium source; and lithium ion battery, comprising the anode material.