▎ 摘　　要

NOVELTY - A fiber/graphene/cobalt sulfide nickel flexible electrode material preparing method involves immersing the pretreated fiber fabric in a graphene oxide suspension and drying to obtain a fiber/graphene oxide material, where the graphene oxide suspension is graphene oxide powder prepared by ultrasonically dispersing graphene oxide powder in deionized water, in-situ reduction of the fiber/graphene oxide material to obtain a fiber/graphene material, immersing the fiber/graphene material in a hydrothermal reaction vessel containing a nickel salt, cobalt salt and sulfur-containing precursor solution, and heating to obtain the finished product. USE - Method for preparing fiber/graphene/cobalt sulfide nickel flexible electrode material. ADVANTAGE - The method enables preparing fiber/graphene/cobalt sulfide nickel flexible electrode material with high specific capacitance, high area specific capacity and power characteristics, and excellent cycle performance.