▎ 摘　　要

NOVELTY - A microporous-mesoporous-macroporous multistage structure of three-dimensional graphene material has specific surface area of 500-3500 m2/g and electrical conductivity of 10-300 S/cm in which the three-dimensional graphene material is macroscopically a bulk material. The number of graphene layers is 1-10. USE - Microporous-mesoporous-macroporous multistage structure of three-dimensional graphene material is used for producing supercapacitor devices (claimed). ADVANTAGE - The microporous-mesoporous-macroporous multistage structure of three-dimensional graphene material is economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of microporous-mesoporous-macroporous multistage structure of three-dimensional graphene material.