▎ 摘　　要

NOVELTY - A high-conductivity three-dimensional graphene pure hydrogel material is prepared by ultrasonically dispersing graphene oxide dispersion liquid and glucose to obtain a graphene oxide/glucose solution, transferring the mixture to a reaction kettle and reacting at 120 plus minus 10 degrees C for 11-13 hours and cooling to room temperature. USE - High-conductivity three-dimensional graphene pure hydrogel material used as electrodes supercapacitors. ADVANTAGE - The high-conductivity three-dimensional graphene pure hydrogel material is prepared by hydrothermal method under optimized conditions where glucose is used as reducing agent. Graphene hydrogel material is simple to cut and supercapacitors with high specific capacitance and better cycle performance.