▎ 摘　　要

NOVELTY - Preparing graphene-coated tin oxalate conductive material, comprises using a diaphragm to electrolyte solution the electrolyte solution into electrolyte solution cathode and anode, where electrolyte solution is dilute sulfuric acid electrolyte solution and contains the concentration is 40-300 g/l of oxalate ion, placing anode into cathode and anode electrolyte solution, where the anode is metal tin, the cathode is inert material, filtering the electrolytic solution after electrolysis to obtain the filter cake, and drying the filter cake to obtain the graphene-coated tin oxalate conductive material. USE - The method is useful for preparing graphene-coated tin oxalate conductive material. ADVANTAGE - The method: has short technical process, low preparation cost and simple operation. The material prepared by the invention has stable cycle performance, high electron transfer rate, and the formed battery has good initial charge and discharge capacity; improves the cycle life and electric charge of the sodium ion battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: graphene-coated tin oxalate conductive material, prepared by the above-mentioned method ; graphene-coated tin oxalate cathode material, comprising mixing the conductive material, acetylene carbon black and polyvinylidene fluoride according to a mass ratio of 6-8:1-1.5:1 to obtain a mixture, adding solvent to the mixture to prepare a slurry, which is then coated on a carrier, and cold-pressing the coated carrier to obtain a cathode material for a battery; and battery, comprising graphene-coated tin oxalate cathode material.