▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide-based hollow cobalt (Co)-metal organic framework (MOF) composite flexible electrode material comprises uniformly mixing Co-MOF with porous framework structure with reduced graphene oxide dispersion liquid, freeze-drying mixed solution to obtain reduced graphene oxide Co-MOF composite material, processing with hot ammonium sulfide solution in room temperature environment, performing fast crosslinking reduction reaction, etching Co-MOF into hollow structure, washing residual ammonium sulfide after 1-5 minutes using deionized water, and freeze-drying to obtain reduced graphene oxide-based hollow Co-MOF composite flexible film material. USE - The method is for preparing reduced graphene oxide-based hollow Co-MOF composite flexible electrode material. ADVANTAGE - The material fully exerts high specific capacity of Co-MOF derivative and excellent mechanical performance and high conductivity of reduced graphene oxide, can buffer volume expansion in circulating process, shortens ion transmission path by hollow structure formed by Co-MOF, and improves electrochemical reaction dynamics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a reduced graphene oxide hollow Co-MOF composite flexible electrode material comprising Co-MOF with porous framework structure and reduced graphene oxide with crosslinked structure combined and compounded together, where the hollow Co-MOFs are encapsulated in crosslinked structure to form a stable structure.