▎ 摘　　要

NOVELTY - A lithium-ferrate nanocrystalline-graphene composite comprises beta -lithium ferrate nanocrystals dispersed on graphene sheet as substrate. USE - Lithium-ferrate nanocrystalline-graphene composite (claimed). ADVANTAGE - The lithium-ferrate nanocrystalline-graphene composite is economically and rapidly manufactured without agglomeration by simple method. DETAILED DESCRIPTION - A lithium-ferrate nanocrystalline-graphene composite comprises beta -lithium ferrate (LiFe5O8) nanocrystals dispersed on graphene sheet as substrate. An INDEPENDENT CLAIM is included for preparation of lithium-ferrate nanocrystalline-graphene composite, which involves adding graphite to N-methyl pyrrolidone and dispersant, obtaining dispersion, adding iron acetylacetonate, lithium hydroxide monohydrate and octadecylamine, mixing, heating, heat-preserving, obtaining lithium ferrate nano crystal-graphene composite material primary product, washing, centrifuging and drying.