▎ 摘 要
NOVELTY - Preparing low temperature lithium ion battery anode material by graphene residual carbon involves taking graphene residual carbon, and drying the graphene residue, and preparing anode material by shaping and classifying the dried graphene residue to obtain graphene residue particles with a particle size of 10-30 micrometer. The graphene residue particles are added to an organic solvent in which a carbon precursor is dissolved, and stirred and dispersed uniformly, and then performed heat treatment to obtain a treated product. The heating temperature is 100-200 degrees C, and the time is 1-5 hours. The organic solvent is removed by evaporation, then performed heat treatment to obtain a powder of the heating product, that is, a negative electrode material for a low-temperature lithium ion battery, where the heating temperature is 600-2400 degrees C and the processing time is 0.5-240 hours. USE - Method for preparing low temperature lithium ion battery anode material by graphene residual carbon. ADVANTAGE - The method enables to prepare low temperature lithium ion battery anode material by graphene residual carbon, that utilizes the residue in the process of preparing graphene by the redox method for preparing negative electrode materials, which is beneficial to saving costs, solves the problem of environmental pollution caused by this type of waste, and has rapid diffusion of lithium ions.