▎ 摘　　要

NOVELTY - An aluminum-cobalt-oxide graphene composite flexible carbon nano fiber preparing method involves pre-oxidizing a carbon nanofiber membrane with polyacrylonitrile nanofiber membrane obtained by electrostatic spinning, utilizing the carbon nanofiber film as a carrier, growing a hydroxide precursor of cobalt and aluminum on the carbon nanofiber film by a hydrothermal method, performing heat treatment in a hydrogen sulfide atmosphere to cure the hydroxide precursors of cobalt and aluminum to obtain cobalt aluminum sulfide (CoAl2S4) hollow tubes, utilizing an electrochemical deposition technology to deposit metal compounds on the surface of the hollow tube of cobalt aluminum sulfide. USE - Method for preparing aluminum cobalt oxide graphene composite flexible carbon nanofiber. ADVANTAGE - The method enables preparing aluminum cobalt oxide graphene composite flexible carbon nanofiber with better electrochemical performance and wider operating voltage.