▎ 摘　　要

NOVELTY - A graphene electrode material preparing method involves dispersing an oxidation graphite in water, and obtaining graphite solution by passing an ultrasonic wave to the dispersed oxidation graphite. A silver working electrode is connected to the graphite solution, and an oxidation graphene hydrogel is obtained by depositing the silver working electrode in a constant electrophoresis voltage. Graphene electrode material is prepared by leaching the oxidation graphene hydrogel in sodium sulfate, and light is passed to the leached sodium sulfate. USE - Method for preparing graphene electrode material. ADVANTAGE - The method enables preparing graphene electrode material in simple process with high electrical conductivity, large capacity and convenient for performing stable chemistry performance. DETAILED DESCRIPTION - A graphene electrode material preparing method involves dispersing an oxidation graphite in water, and obtaining graphite solution by passing an ultrasonic wave to the dispersed oxidation graphite. Silver working electrode is connected to the graphite solution, where a platinum electrode is taken as a pair electrode and silver/silver chloride is taken as a reference electrode, and obtaining an oxidation graphene hydrogel by depositing the silver working electrode in a constant electrophoresis voltage of 4-8 V. Graphene electrode material is prepared by leaching the oxidation graphene hydrogel in a sodium sulfate, and passing light reduction to the leached sodium sulfate.