▎ 摘　　要

NOVELTY - Reduction of graphene oxide includes weighing 0.1-5 g graphite powder and 0.05-5 g sodium nitrate, homogenizing, adding concentrated sulfuric acid, cooling under ice bath, adding 0.5-20 g potassium permanganate, stirring for 0.5-5 hours, standing for 1-5 days at room temperature, adding 10-500 mL 1-10% sulfuric acid, stirring for 0.5-5 hours, adding 0.5-20 mL hydrogen peroxide solution until bubbles disappear, washing with 5-10% nitric acid and 1-5% nitric acid, adding deionized water, centrifuging, drying at 25 degrees C and performing ultrasonic dispersion in water/organic solvent. USE - Method for reducing graphene oxide used for preparing lithium ion battery anode and cathode material (claimed). ADVANTAGE - The method has high stability, inexpensive, and has simple preparation. DETAILED DESCRIPTION - Reduction of graphene oxide involves weighing 0.1-5 g graphite powder and 0.05-5 g sodium nitrate, homogenizing, adding concentrated sulfuric acid, cooling under ice bath, adding 0.5-20 g potassium permanganate, stirring for 0.5-5 hours, standing for 1-5 days at room temperature, adding 10-500 mL 1-10% sulfuric acid, stirring for 0.5-5 hours, adding 0.5-20 mL hydrogen peroxide solution until bubbles disappear, washing with 5-10% nitric acid and 1-5% nitric acid, adding deionized water, centrifuging, drying at 25 degrees C, performing ultrasonic dispersion in water/organic solvent, adding reducing agent, performing reduction under oil bath and freeze-drying.