▎ 摘　　要

NOVELTY - A graphene/activated carbon/polypyrrole flexible composite electrode preparing method involves using activated fiber sheets, carbonized and activated to obtain activated carbon powder, dispersing activated carbon and graphene oxide powder in water and N,N-dimethylformamide according to a certain mass ratio and sonicating for 1-3 hours to uniformity, adding a small amount of reducing agent to the mixed solution, reacting in a constant temperature water bath at 80-95 degrees C for 2-5 hour, measuring 50-100 mL and filtering on a solvent suction filter to obtain a film. The flexible graphene/activated carbon film is cut into a regular shape, a pyrrole electrolyte solution and polypyrrole is electrodeposited in a three-electrode system to obtain the finished product. USE - Method for preparing graphene/activated carbon/polypyrrole flexible composite electrode. ADVANTAGE - The method enables preparing graphene with enhanced pseudo-capacitive energy, flexible energy storage device and excellent electrochemical performance, in safe, cost effective and environment-friendly manner.