▎ 摘　　要

NOVELTY - Preparing iron (II) sulfide/reduced graphene oxide nanocomposite sodium ion battery cathode material involves dissolving graphene oxide in deionized water to obtain solution ultrasonically, and obtain suspension in which graphene oxide is dispersing uniformly. The acetylacetonate is added into acetone, dissolved iron to acetylacetonate, added into suspension to obtain mixed solution of iron salt and graphene oxide. USE - Method for preparing iron (II) sulfide/reduced graphene oxide nanocomposite sodium ion battery cathode material (claimed). ADVANTAGE - The method enables to prepare iron (II) sulfide/reduced graphene oxide nanocomposite sodium ion battery cathode material which has inhibits material from dusting, and has improves cycle stability. DETAILED DESCRIPTION - Preparing iron (II) sulfide/reduced graphene oxide nanocomposite sodium ion battery cathode material involves dissolving graphene oxide in deionized water to obtain solution ultrasonically, and obtain suspension in which graphene oxide is dispersing uniformly. The acetylacetonate is added into acetone, dissolved iron to acetylacetonate, added into suspension to obtain mixed solution of iron salt and graphene oxide. The mixed solution of iron salt and graphene oxide is heated and evaporated to total evaporation of acetone, and freeze-dried to obtain product. The product and thiourea are heated and vulcanized to obtain final product.