▎ 摘　　要

NOVELTY - Method for preparing high-rate fast-charge graphite negative electrode material, involves (a) coarse crushing needle coke, petroleum coke and asphalt coke, and performing ball shaping treatment after fine grinding to obtain graphite raw material powder, (b) uniformly mixing graphite raw material powder with first carbon source, heating to certain temperature in inert atmosphere for surface coating, and cooling, (c) performing high-temperature carbonization on first carbon source coated graphite raw material in inert atmosphere, and cooling, (d) performing high-temperature graphitization treatment on primary carbide material, and cooling to obtain artificial graphite powder, (e) uniformly mixing artificial graphite powder with second carbon source, heating to certain temperature in inert atmosphere for surface coating, and cooling, and (f) performing high-temperature carbonization on second carbon source coated artificial graphite in inert atmosphere, and cooling. USE - The method is used for preparing high-rate fast-charge graphite negative electrode material (claimed). ADVANTAGE - The graphite negative electrode material has high charge and discharge rate, large discharge capacity and excellent cycle performance and overall performance. DETAILED DESCRIPTION - Method for preparing high-rate fast-charge graphite negative electrode material, involves (a) coarse crushing needle coke, petroleum coke and asphalt coke, and performing ball shaping treatment after fine grinding to obtain graphite raw material powder, (b) uniformly mixing graphite raw material powder with first carbon source, heating to certain temperature in inert atmosphere for surface coating, and cooling to obtain first carbon source coated graphite raw material, (c) performing high-temperature carbonization on first carbon source coated graphite raw material in inert atmosphere, and cooling to obtain primary carbide material, (d) performing high-temperature graphitization treatment on primary carbide material, and cooling to obtain artificial graphite powder, (e) uniformly mixing artificial graphite powder with second carbon source, heating to certain temperature in inert atmosphere for surface coating, and cooling to obtain second carbon source coated artificial graphite, and (f) performing high-temperature carbonization on second carbon source coated artificial graphite in inert atmosphere, and cooling to obtain negative electrode material.