▎ 摘 要
NOVELTY - Preparation of sodium ion battery negative electrode, involves preparing an aqueous solution of graphene oxide with a concentration of 1-20 mg/mL, adding 50-95 %mass sodium humate to 5-50 %mass graphene oxide to obtain a mixture, mixing the mixture uniformly, drying at 60-200 degrees C, carrying out reduction reaction under a mixed gas atmosphere of hydrogen gas or an inert gas, and controlling reduction reaction temperature at 100-300 degrees C for 1-48 hours to obtain sodium ion battery negative material in powder form. USE - Preparation of sodium ion battery negative electrode (claimed). ADVANTAGE - The method enables preparation of sodium ion battery negative electrode material with high quality, under mild reaction conditions. The negative electrode has excellent electrochemical property, specific capacity, and power efficiency. The method is simple and easy to industrialize.