▎ 摘　　要

NOVELTY - Preparation of composite graphene fiber film involves weaving graphene fiber into graphene fiber fabric, uniformly applying molding adhesive on both sides of the graphene fiber woven fabric, rolling, tightly sealing rolled graphene fiber fabric with PTFE film and drying in cool place. USE - Preparation of composite graphene fiber film material for manufacture of supercapacitor mounted in electric vehicle (claimed). ADVANTAGE - The method enables simple preparation of composite graphene fiber film with improved tensile properties, bending property and thermal stability. The supercapacitor has prolonged service life, and can quickly and efficiently absorb the regenerative kinetic energy generated by the electric vehicle brake. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for composite graphene fiber film composite graphene fiber film material prepared by the method according to any one of claims 1-9.