▎ 摘　　要

NOVELTY - Preparing tungsten diselenide coating type three dimesional network-shaped single crystal ternary material anode comprises (i) dissolving water-based binder powder in water with a stirrer, shearing and dissolving to obtain a water-based binder solution, leaving it for later use, adding water-based binder solution into the conductive particles and mix thoroughly to obtain a mixed solution; (ii) using high-mixer to mix an appropriate proportion of the ternary precursor and the lithium source evenly, and obtaining a single crystal ternary anode after crushing and sieving; (iii) mixing tungsten trioxide powder, selenium powder and the single crystal ternary cathode material; and (iv) adding single crystal ternary cathode material to the mixed solution, mixing uniformly to obtain a mixture, and freeze-drying the mixture to obtain the tungsten selenide-coated 3D network single crystal ternary cathode material. USE - The method is useful for preparing tungsten diselenide coating type three dimesional network-shaped single crystal ternary material anode. ADVANTAGE - The method improves the adhesion area of the active material in the battery, and the steps of the coating method are simple and pollution-free; ensures uniform coating of the positive electrode material can be realized without complex equipment, and the surface of the single crystal ternary positive electrode material is improved. DETAILED DESCRIPTION - Preparing tungsten diselenide coating type three dimesional network-shaped single crystal ternary material anode comprises (i) dissolving water-based binder powder in water with a stirrer, shearing and dissolving to obtain a water-based binder solution, leaving it for later use, adding water-based binder solution into the conductive particles and mix thoroughly to obtain a mixed solution; (ii) using high-mixer to mix an appropriate proportion of the ternary precursor and the lithium source evenly, placing it in an atmosphere furnace, sintering at high temperature for a certain period of time, cooling it, and obtaining a single crystal ternaryanode after crushing and sieving; (iii) mixing tungsten trioxide powder, selenium powder and the single crystal ternary cathode material, adding in a tube furnace, conducting heat treatment in an inert gas atmosphere, and cooling to room temperature after the heat treatment to obtain tungsten selenide coating type single crystal ternary cathode material; and (iv) adding single crystal ternary cathode material to the mixed solution, mixing uniformly to obtain a mixture, and freeze-drying the mixture to obtain the tungsten selenide-coated 3D network single crystal ternary cathode material.