▎ 摘　　要

NOVELTY - A fiber/graphene/copper sulfide flexible electrode material preparing method involves immersing pretreated fiber in a graphene oxide suspension and drying to obtain a fiber/graphene oxide material. The fiber/graphene oxide material is ultrasonically dispersed in deionized water to obtain a graphene oxide suspension. The suspension is carried out in-situ reduction to obtain a fiber/graphene material. The fiber/graphene material is immersed in a hydrothermal reaction vessel containing a copper salt and a sulfur-containing precursor solution and heated to obtain the finished product. USE - Method for preparing fiber/graphene/copper sulfide flexible electrode material. ADVANTAGE - The method enables preparing fiber/graphene/copper sulfide flexible electrode material with better conductivity, high specific capacitance and poor conductivity.