▎ 摘　　要

NOVELTY - Sepiolite powder, deionized water and sucrose are mixed in a mass ratio of 1:2:4-10, ultrasonic dispersion and microwave heating are carried out, 98.3 %mass concentrated sulfuric acid is added and dried for 24-144 hours. Sucrose is converted into caramel by microwave heating, and resulting mixture is carbonized in protective gas atmosphere to obtain carbonized sepiolite-caramel layer. The carbonized sepiolite-caramel layer is acidified using hydrochloric acid and hydrofluoric acid, washed with deionized water and dried to obtain graphene structured-electroconductive carbon material. USE - Preparation of graphene structured-electroconductive carbon material used for capacitor material, electrode material of lithium-ion battery, and adsorbent material. ADVANTAGE - The method provides graphene structured-electroconductive carbon material having high specific surface area.