▎ 摘　　要

NOVELTY - Method for preparing cationized cellulose/graphene/polypyrrole conductive composite material, involves oxidizing graphene oxide with reducing agent to obtain reduced graphene oxide, using bacterial cellulose as substrate for modifying bacterial cellulose with quaternary ammonium salt type cationic etherifying agent, compounding cationic cellulose dispersion as dispersant and reducing graphene to obtain cationized cellulose/graphene dispersion solution, uniformly mixing cationized cellulose/graphene dispersion with pyrrole monomer and oxidizing agent and reacting to obtain cationized cellulose/graphene/polypyrrole conductive composite material. USE - The method is used for preparing cationized cellulose/graphene/polypyrrole conductive composite material used as active material for supercapacitor electrode (all claimed). ADVANTAGE - The method realizes the unification of dispersibility, system compatibility and electrochemical performance, and solves the problem that graphene is easy to agglomerate, and the prepared composite material has excellent electrochemical performance.