▎ 摘　　要

NOVELTY - A three-dimensional graphene embedded ultra-small tin antimony particle material comprises tin antimony particles embedded in three-dimensional graphene. The tin antimony particle is tin-antimony alloy with particle diameter of 5-50 nm and embedded in three-dimensional graphene surface. The surface is covered with 1-5 layers of graphene. The three-dimensional graphene has diameter of 0.2-5 mu m and thickness of 1-5 nm. USE - Three-dimensional graphene embedded ultra-small tin antimony particle material used for lithium/sodium ion battery cathode (claimed). DETAILED DESCRIPTION - A three-dimensional graphene embedded ultra-small tin antimony particle material comprises tin antimony particles embedded in three-dimensional graphene. The tin antimony particle is tin-antimony alloy with particle diameter of 5-50 nm and embedded in three-dimensional graphene surface. The surface is covered with 1-5 layers of graphene. The three-dimensional graphene has diameter of 0.2-5 mu m and thickness of 1-5 nm. The material has tin antimony and carbon mass percent of 0.3 -0.7:0.7-0.3, specific surface area of 100-500 m2/g, D peak and G peak ratio of 0.7-1.1, and 2D peak and G peak ratio of 0.2-0.6. An INDEPENDENT CLAIM is included for preparation of three-dimensional graphene embedded ultra-small tin antimony particle material comprising taking mixture of sucrose, glucose, citric acid, ethylenediamine and starch as carbon source, stannous chloride or tin tetrachloride as tin source, antimony acetate or antimony tetrachloride and antimony source, sodium sulfate, sodium chloride, sodium carbonate and sodium silicate as template, dissolving carbon source, tin source, antimony source and sodium chloride in deionized water, stirring to prepare solution, ultrasonically and uniformly mixing, spray drying to obtain precursor at 105-220 degrees C, setting inside furnace, using nitrogen, helium or argon as inert gas source, inletting inert gas for 10-20 minutes to remove air at flow rate of 100-400 ml/minute, using inert gas or hydrogen as carrier gas, fixing total flow quantity to 50-500 ml/minute, heating to 300-750 degrees c at speed of 1-10 degrees C/minute, keeping temperature for 1-3 hours, cooling to room temperature to obtain calcined product, water washing to sodium chloride-free, and drying at 60-120 degrees C. The molar ratio of tin to antimony in tin source is 1:1. The molar ratio of tin to carbon source in tin source is 1:10-100. The molar ratio of tin to sodium chloride in tin source is 1:50-500.