▎ 摘　　要

NOVELTY - Preparing high power and high stability of sodium ion battery cathode material comprises dissolving adding sodium salt, vanadium salt, carbon source, villaumite, phosphate and graphene oxide in the ultra pure water according to the stoichiometric ratio of sodium-vanadium phosphate-fluoride complex, uniformly mixing the solution of ultra-pure water, drying, pre-sintering at 300-450 degrees C for 2-8 hours under protective atmosphere, and calcining at 500-800 degrees C for 2-12 hours to obtain stable high-power high-sodium-ion battery cathode material, where the carbon content of the cathode material of the sodium ion battery is 2-8%, preferably 5-8 % by weight of the cathode material of the sodium ion battery, the dosage of the oxidized graphite alkene is sodium salt, vanadium salt, carbon source, fluoride salt and phosphate is 0.02-9%, preferably 1-9 % of the total weight. USE - The method is useful for preparing high power and high stability of sodium ion battery cathode material. ADVANTAGE - The method is simple, easy to operate, short production period, economical, little content, improves the circulation and multiplies power performance.