▎ 摘　　要

NOVELTY - Preparation of large-scale graphene comprises mixing graphite, intercalation additive, water and surfactant at 1:2-5:5-10:0.1-0.5 ratio, dispersing mixture at 300-500 revolutions/minute (rpm) for 10-25 minutes, standing for 3-5 days, and grinding suspension using ceramic mirror grinding apparatus at 500-1000 rpm with ultrasonication at 500-1500 kW power and 50-170 kHz frequency. USE - Method for preparing large-scale graphene (claimed). ADVANTAGE - The method provides continuous, clean and environmental protection of graphene production. It does not destroy surface integrity and topological symmetry of graphene.