▎ 摘　　要

NOVELTY - Preparation of a flexible self-supporting graphene hybrid electrode involves using graphene oxide and carbon nanotube or carbon black and hexachlorophosphazene in N-methyl pyrrolidone solution to form a thin film, infiltrating a transition metal salt solution into the film, and burning the film in alcohol flame. USE - Preparation of flexible self-supporting graphene hybrid electrode used as supercapacitor electrode (all claimed). ADVANTAGE - The method is simple, carried out using inexpensive material within a short period of time, and is suitable for industrial production. The electrode produced has excellent electrochemical performance.