▎ 摘　　要

NOVELTY - Alkaline secondary battery zinc cathode material is claimed. The zinc cathode material is zinc oxide/zinc sulfide/carbon composite material or metal-doped zinc oxide/zinc sulfide/carbon composite material, the functional metal elements doped in the metal-doped zinc oxide/zinc sulfide/carbon composite material are aluminum, titanium, bismuth, lead, indium, tin, antimony, ytterbium, yttrium, erbium, lanthanum, zirconium and/or chromium, the zinc oxide/zinc sulfide/carbon composite material is obtained by taking zinc sulfate and polymer organic matter as the main raw materials, mixing uniformly, then calcining at high temperature under an inert gas atmosphere or taking zinc sulfate and high molecular organic matter as the main raw materials, uniformly mixing with functional metal salts, and calcining at high temperature under an inert gas atmosphere to obtain metal-doped zinc oxide/zinc sulfide/carbon composite materials. USE - The alkaline secondary battery zinc cathode material is useful in preparing alkaline secondary battery zinc cathode plate (claimed). ADVANTAGE - The alkaline secondary battery zinc cathode material: reduces the deformation of the zinc, inhibits the growth of zinc dendrites, hydrogen evolution, and passivation, improves the stability of zinc cathode s in alkali, and greatly improve the cycle life of alkaline secondary batteries. DETAILED DESCRIPTION - Alkaline secondary battery zinc cathode material is claimed. The zinc cathode material is zinc oxide/zinc sulfide/carbon composite material or metal-doped zinc oxide/zinc sulfide/carbon composite material, the content of carbon in the zinc oxide/zinc sulfide/carbon composite material is 2-20 wt.%, the molar ratio of sulfur to zinc is 0.2-1:1, the particle size of the zinc oxide/zinc sulfide/carbon composite material is 50-500 nm, and the functional metal elements doped in the metal-doped zinc oxide/zinc sulfide/carbon composite material are aluminum, titanium, bismuth, lead, indium, tin, antimony, ytterbium, yttrium, erbium, lanthanum, zirconium and/or chromium, the doping content of the functional metal element is ≤ 25 wt.%, the zinc oxide/zinc sulfide/carbon composite material is obtained by using zinc sulfate and polymer organic matter as the main raw materials, mixing uniformly, then calcining at high temperature under an inert gas atmosphere or taking zinc sulfate and high molecular organic matter as the main raw materials, uniformly mixing with functional metal salts, and calcining at high temperature under an inert gas atmosphere to obtain metal-doped zinc oxide/zinc sulfide/carbon composite materials, the functional metal salts are aluminum sulfate, titanium sulfate, bismuth sulfate, lead sulfate, indium sulfate, tin sulfate, antimony sulfate, ytterbium sulfate, yttrium sulfate, erbium sulfate, lanthanum sulfate, zirconium sulfate and/or chromium sulfate, and the polymeric organic matter is polyacrylamide, polyvinyl alcohol, citric acid, acrylate, ascorbic acid and/or glucose. INDEPENDENT CLAIMS are also included for: Preparing alkaline secondary battery zinc cathode material, comprising S1, dispersing zinc sulfate or zinc sulfate and functional metal salts in deionized water, then adding polymer organic matter, stirring and mixing evenly, and then freeze-drying at -20 to -40 ℃ for 5-48 hours to obtain precursor, S2, placing the precursor obtained in step S1 in a tube furnace, raising the temperature to 120-250 ℃ in an inert gas atmosphere for 10-120 minutes, then continuously raising the temperature to 500-850 ℃ for 1-24 hours, then cooling to room temperature, crushing, and sieving to obtain zinc cathode material or metal-doped zinc cathode material; Preparing alkaline secondary battery zinc cathode plate, comprising S1, mixing 50-85 wt.% alkaline secondary battery zinc cathode material, 2-35 wt.% additive and 3-20 wt.% conductive agent, then adding to the binder aqueous solution prepared by 1-5 wt.% binder, stirring and mixing uniformly to prepare the active material slurry, and S2, coating the prepared active material slurry on a conductive substrate, drying, pressing into sheets, and punching to obtain alkaline secondary battery zinc cathode plate; and Alkaline secondary battery comprising a battery case, a pole plate group sealed in the battery case and an electrolyte, where the pole plate group includes anode plate, a cathode plate and a separator, and the alkaline secondary battery cathode plate is used as the cathode plate.