▎ 摘　　要

NOVELTY - Method for preparing a carbon negative electrode material, involves making carbon source into flash graphene by the flash Joule heating method, and ball-milling the flash graphene under an inert atmosphere to obtain the ball-milled flash graphene, i.e., the carbon negative electrode material, where during the ball milling process, the ball milling time is 0.1-2 hours, and the ball milling frequency is 1-100 Hz. USE - The method is used for preparing a carbon negative electrode material used in lithium ion batteries, where the lithium-ion battery is a fast-charge lithium-ion battery (all claimed) fir portable electronic device, electric automobile and intelligent network. ADVANTAGE - The ball milling treatment of the method realizes the reduction of the ordered lattice length of the carbon material, and introduces the defect, increases the active site of the storage of the lithium. The method can obviously improve the capacity lithium the ion battery by ball-milling treatment, reduce the attenuation of the capacity, and the preparation technique is simple operation, low price, raw material-friendly process and can be prepared in large scale. The carbon negative electrode material has ball-milled flash graphene with a short ordered lattice. The preparation method is simple to operate and can realize rapid and large-scale preparation, and the prepared carbon negative electrode material used in lithium ion batteries exhibits high reversible capacity, excellent rate performance and cycle stability, and meets rapid charging standards DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a carbon negative electrode material.