▎ 摘　　要

NOVELTY - Electrochemically exfoliated graphene-based metal oxide comprises electrochemically stripped graphene and metal oxide nanoparticles distributed on the surface of graphene. USE - The oxide is useful for sodium ion battery and magnesium ion battery as an electrode material (claimed). ADVANTAGE - The oxide exhibits excellent electrochemical performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the electrochemically stripped graphene metal oxide comprising using a graphite foil as an anode, a platinum wire as a cathode, placing it in an electrolyte, performing electrolysis using direct current to obtain suspension, suction filtering the suspension with a polytetrafluoroethylene filter, washing with deionized water for 3-5 times, drying at 60 degrees C to obtain dried product, dispersing the dried product in polar non-electrolyte solvent, and ultrasonically dispersing for 3-5 hours, allowing to stand the mixture for 12-20 hours, collecting the upper layer dispersion by suction filtration, and drying to obtain electrochemically stripped graphene, ultrasonically dispersing the electrochemically stripped graphene in polar aprotic solvent and a metal precursor, adding a small amount of water into the solution, stirring at room temperature for 2 hours, transferring to a hydrothermal kettle, and washing with water at 80-200 degrees C, thermally reacting the mixture for 2-18 hours and centrifugally washing the product and drying; and (2) use of electrochemically exfoliated graphene-based metal oxide for lithium ion battery as an electrode material and the specific capacity can be maintained at 900 mAh/g or more after 200 cycles.