▎ 摘　　要

NOVELTY - Preparation of three-dimensional graphene lithium ion battery fast charge and negative electrode material comprises heating metal sodium and metal potassium at 450-700 degrees C in argon atmosphere, introducing mixture of carbon dioxide and nitrogen-containing gas at gas flow ratio of 1:4-4:1, reacting for 3 hours, closing mixed air flow, keeping temperature and reaction space sealed for 6-48 hours, cooling to room temperature to obtain black solid, crushing black solid, sieving to 100 meshes, removing sieved matters, adding deionized water or 1-5 mol/L acid solution at mass ratio of 1:2-5, soaking for 2-11 hours, filtering product, washing and drying. USE - The preparation of three-dimensional graphene lithium ion battery fast charge and negative electrode material is used for lithium ion battery cathode (claimed). ADVANTAGE - The material has excellent fast charge discharge capacity and long cycle life. The method has simple operation, less steps, low cost, green and pollution-free and easy industrial production.