▎ 摘　　要

NOVELTY - Comprehensive resource recovery and reuse of titanium dioxide by-product ferrous sulfate and waste graphite cathode materials, comprises using titanium dioxide by-product ferrous sulfate and waste graphite cathode material as main raw materials, mixing evenly with high-molecular organic matter or soluble functional metal salts and high-molecular organic matter, sulfur-carbon co-doped iron-based composite materials or metal-doped sulfur-carbon co-doped iron-based composite materials are obtained through high-temperature calcination under an inert atmosphere. The iron-based composite material is used to prepare the cathode of the alkaline secondary battery. USE - The method is useful for comprehensive resource recovery and reuse of titanium dioxide by-product ferrous sulfate and waste graphite cathode materials. ADVANTAGE - The method is simple, and effectively reduces resource consumption, and provides iron-based composite material with excellent electrochemical activity and cyclic reversibility, thus improving the comprehensive performance of the alkaline secondary battery. DETAILED DESCRIPTION - AN INDEPENDENT CLAIM is also included for: an iron negative plate of alkaline secondary battery; and an alkaline secondary battery.