▎ 摘　　要

NOVELTY - Rapid preparation of high-quality graphene comprises (i) adding graphite powder to the solution containing intercalating agent and stirring, (ii) adding stripping auxiliary agent, while ultrasonic treatment, (iii) washing with solvent used in solution of step (i) to neutralize, and removing bottom insoluble matter by centrifuging to obtain graphene dispersion liquid, and (iv) dispersing the resultant stone ink and drying to obtain graphene. USE - The method is useful for rapid preparation of high-quality graphene (claimed). ADVANTAGE - The method is simple, has simple operation, environmentally friendly, suitable for large scale in high quality graphene, with high degree, high electrical conductivity and thermal conductivity.