▎ 摘　　要

NOVELTY - Preparation of graphene material involves adding chloride intercalation agent and graphite to molten ionic liquid in the solid-liquid ratio of 1 g:10-100 mL, stirring the resultant product for 10-300 minutes under frequency of 10-1000 Hz and electric field strength of 50-5000 V/m to obtain graphene suspension, filtering the resultant product, washing the residue with organic solvent 3-5 times, then washing the resultant product with deionized water and drying the resultant product. USE - Preparation of graphene material (claimed). ADVANTAGE - The method efficiently provides graphene material having excellent dispersibility, by economical process.