▎ 摘　　要

NOVELTY - The method involves placing a raw material graphite ball milling ball into a high pressure ball milling kettle, closing a kettle cover, fixing it on a planetary ball milling device, introducing CO2 into the ball milling kettle, and making the temperature and pressure in the ball milling kettle reach the set value, operating the planetary ball milling device, closing the power supply after the operation time reaches a predetermined value, releasing the CO2 to normal pressure in the ball milling kettle, opening the kettle cover, taking out the material, separating the ball milling bead by screen, and collecting the prepared graphene. USE - Scalable preparation method of graphite. Uses include but are not limited to electronic device, battery/super capacitor, catalyst carrier and composite material. ADVANTAGE - The method provides good performance, simple method technique, easy industrial scale preparation method of graphite. The prepared graphene keeps the original crystal structure, with excellent electrical performance and wide application prospect. The method is green, simple, stripping efficiency is high, the cost is low, which is more beneficial for industrial mass production. By adjusting the supercritical carbon dioxide (CO2) density, can reduce the collision strength between the ball, reduces the damage to the graphene crystal structure. The impact strength of the ball to the raw material can be reduced, so as to reduce the damage of the crystal structure of the graphene. Thus, the method not only improves the peeling efficiency, but also can obtain high-quality graphene powder, solves the problem of graphene powder production amplifying, and is environment-friendly sustainable green technology. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the scalable preparation method of graphite (Drawing includes non-English language text).