▎ 摘　　要

NOVELTY - Preparing graphene paper, especially with a high surface area, comprises: (a) spreading graphene paste between substrates, where at least one substrate has open pores; (b) compressing the graphene paste being spread between two substrates; (c) drying the graphene paste being spread and compressed between two substrates. USE - The method is useful for preparing graphene paper (claimed), which is useful in vehicles and airplanes, in electrodes in supercapacitors and flexible lithium-ion batteries. ADVANTAGE - The method provides graphene paper that: has high surface area (claimed), improved flexibility; is 6 times lighter and twice as hard as steel, thus reducing the weight of vehicles and airplanes; has 10 times higher tensile strength and 13 times higher bending stiffness; and has good electrical conductivity and small thickness.