▎ 摘　　要

NOVELTY - Preparation of sandwich structure of graphene metal or metal oxides involves preparing graphene oxide, preparing metal amino complex solution, preparing sandwich structure of graphene metal oxide amino complex, collecting precipitated complex in an inert gas at high temperatures and obtaining sandwich structure of graphene metal or metal oxide. USE - Preparation of sandwich structure of graphene metal or metal oxides for electrode material for lithium battery and ultra-capacitor. ADVANTAGE - The method enables simple and rapid preparation of large quantities of graphene metal or metal oxide complexes, ensures sandwich composite structure, provides nanometer sizes of metal or metal oxide particles, ensures highly dispersion of metal or metal oxide particles on inter-layer graphene and excellent electrochemical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of sandwich structure of graphene metal or metal oxides, which involves adding 0.01-0.1 g graphite oxide to 100 mL alkenyl water, ultrasonically processing the graphene oxide solution, adding 0.01-0.1 mol metal amino complex to 100 mL water, ultrasonically processing the metal amino complex solution, dripping metal amino complex solution to graphene oxide solution for 1-3 hours, centrifuging, washing and drying.