▎ 摘　　要

NOVELTY - The method involves freezing and drying graphene oxide solution and porous metal base material in high temperature operation of three-dimensional graphene gas gel directly deposited on porous metal to obtain without a bonding agent of graphene gas gel-metal hybrid material. The metal is used as porous metal material of super capacitor metal current collector comprising a foam nickel NF, and stainless steel net. Calcining temperature is lower than critical temperature of the metal. USE - Super-capacitor electrode preparation method. ADVANTAGE - The method ensures simple operation, commonality, and better electrochemical performance.