▎ 摘　　要

NOVELTY - Preparing cobalt-free anode material, comprises (i) mixing raw materials including nickel source, manganese source, lithium source, metal source, nucleating agent, precipitating agent and complexing agent into a mixed solution and applying a microwave field during the hydrothermal process of the raw material mixed solution, obtaining process sample of anode by hydrothermal reaction at 100-400℃ for 0.05-2 hours under the protective atmosphere, where nucleating agent is graphene oxide hydrogel, and graphene oxide hydrogel concentration is 0.01- 2 mol/l and the frequency of the microwave field is 1-10 GHz and the power is 200-500 W; and (ii) sintering the anode material process sample in an oxygen-containing atmosphere to obtain the cobalt-free anode material. USE - The method is useful for preparing cobalt-free anode material. ADVANTAGE - The method controls the microcosmic appearance, optimizes the preparation process, improves the material performance, saves the cost, and simplifies the process. The lithium battery prepared by the cobalt-free anode material has excellent chemical stability and electrical performance. DETAILED DESCRIPTION - Preparing cobalt-free anode material, comprises (i) mixing raw materials including nickel source, manganese source, lithium source, metal source, nucleating agent, precipitating agent and complexing agent into a mixed solution and applying a microwave field during the hydrothermal process of the raw material mixed solution, obtaining process sample of anode by hydrothermal reaction at 100-400℃ for 0.05-2 hours under the protective atmosphere, where nucleating agent is graphene oxide hydrogel, and graphene oxide hydrogel concentration is 0.01- 2 mol/l and the frequency of the microwave field is 1-10 GHz and the power is 200-500 W; and (ii) sintering the anode material process sample in an oxygen-containing atmosphere to obtain the cobalt-free anode material. The molecular formula of the cobalt-free anode material is Li1+nNixMnyMzO2 (I), where x+y+z=1; x = 0.5-1; y= 0-0.5; z = 0-0.1; n = -0.1-0.5; nd M i= Al, Mg, Sr, Ti, Fe, Sc, V, Y, Zr, Nb, Mo, Ru, Ta, W, B, Si, P, Sn, Tl, Ga, Ge, La and/or Ce. An INDEPENDENT CLAIM is also included for lithium ion battery, comprising a anode made of the cobalt-free anode material.