▎ 摘　　要

NOVELTY - Graphene-based film foldable electric device comprises heating element, two protective films and closure unit. The protective film is provided with heat generating element at upper and lower sides. The protective film is PDMS membrane. The closure unit is metal electrode. The heat generating element is produced by mixing 6-30mg/ml aqueous solution of 100 mu m graphene oxide and 0.1-5% additive solution. The additive is inorganic salt, organic small molecule or macromolecule. The mixture is subjected to ultrasonic dispersion, and then poured into mold to obtain molded material. USE - Graphene-based film foldable electric device. ADVANTAGE - The graphene-based film foldable electric device has 8000-10600S/cm electric conductivity, 1800-2600 Watt/mK thermal conductivity and 12-18% break elongation rate. DETAILED DESCRIPTION - Graphene-based film foldable electric device comprises heating element, two protective films and closure unit. The protective film is provided with heat generating element at upper and lower sides. The protective film is PDMS membrane. The closure unit is metal electrode. The heat generating element is produced by mixing 6-30mg/ml aqueous solution of 100 mu m graphene oxide and 0.1-5% additive solution. The additive is inorganic salt, organic small molecule or macromolecule. The mixture is subjected to ultrasonic dispersion, and then poured into mold to obtain molded material, which is reduced using reducing agent. The molded material is incubated under inert gas atmosphere at 0.1-1 degrees /minute rate at 500-800 degrees C for 0.5-2 hours. The obtained material is again incubated under inert gas atmosphere at 1-3 degrees /minute rate at 1000-1300 degrees C for 0.5-2 hours. The obtained material is again incubated under inert gas atmosphere at 5-8 degrees /minute rate at 2500-3000 degrees C for 0.5-4 hours. The obtained porous graphene film is cooled, and pressed to obtain heat generating element.