▎ 摘　　要

NOVELTY - Production of flake graphene by direct exfoliation of graphite, involves: (a) preparing aqueous suspension of graphite with addition of one or more surface active agents or surfactants; (b) freezing the suspension; and (c) drying the suspension, thus obtaining flake graphene. USE - The method is useful for producing flake graphene by direct exfoliation of graphite (claimed). ADVANTAGE - The method provides a cheap and efficient method for producing flake graphene with the use of safe and commercially available solvents such as water. Graphene flakes obtained by the method of direct exfoliation of graphite in solutions have a crystal structure with a low defect density on the flake surface, which results in high electrical conductivity and good mechanical properties.