▎ 摘　　要

NOVELTY - Producing reduced graphene oxide sheet activated by cellulose derivative comprises (1) preparing dispersion by dispersing graphene oxide in water; (2) preparing a solution by dissolving the cellulose derivative in water; (3) preparing a graphene oxide/cellulose derivative mixture by mixing the graphene oxide dispersion in step (1) and cellulose derivative solution in step (2); (4) drying the mixture to prepare a graphene oxide/cellulose derivative composite sheet; and (5) heat-treating the composite sheet to reduce graphene oxide. USE - The method is useful for producing reduced graphene oxide sheet activated by cellulose derivative. ADVANTAGE - The method increases surface area that can interact with the electrolyte, increases energy storage performance; develops an eco-friendly sheet-like electrode material; maintains flexible sheet shape and increases applicability. DESCRIPTION OF DRAWING(S) - The drawing shows a side scanning electron microscopy image of reduced graphene oxide sheets activated by cellulose derivatives (Drawing includes non-English language text).