▎ 摘　　要

NOVELTY - Large-scale production of graphene comprises applying intercalating agent for raw materials to obtain intercalated graphite, filtering to remove excess intercalating agent, dispersing in 5-1000 times the volume of strong aqueous alkaline solution with pH value of greater than or equal to 10, carrying out ultrasonic treatment, concentrating by centrifugation to obtain aqueous graphene paste, washing with water and freeze-or spray-drying to obtain high quality graphene powder. USE - Method for carrying out large-scale production of graphene (claimed). ADVANTAGE - The product has long-term storage. The method is simple, energy-saving, cost-saving and environment-friendly and has high production efficiency.