▎ 摘　　要

NOVELTY - Preparing nano high-entropy oxide material comprises dissolving the precursor of at least five transition metals in the solvent to obtain the metal precursor solution, mixing and treating the surfactant precursor solution with auxiliary bridging ligand, carrying out solvent thermal reaction to obtain coordination connection to obtain organic metal frame template material, and calcining the organic metal framework template material in the oxygen atmosphere at the temperature below 1000℃ to obtain nano high entropy oxide material. The precursor of the transition metal is nickel, cobalt, copper, magnesium, zinc, titanium, manganese and/or iron. USE - The preparation of nano high-entropy oxide material used in lithium-sulfur battery material anode used in energy storage system. ADVANTAGE - The nano high-entropy oxide material has a single phase, better crystallinity, small grain diameter, and uniform distribution, and has a rich metal catalytic activity site, capable of improving the utilization rate of active sulfur, and inhibiting the shuttle effect of polysulfide, thus improving the electrochemical performance of the battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a lithium sulfur battery anode material; and (2) the lithium-sulfur battery anode. DESCRIPTION OF DRAWING(S) - The drawing shows a flow diagram of the preparation method of the nano high-entropy oxide material. (Drawing includes non-English language text).