▎ 摘　　要

NOVELTY - Preparing a high-rate lithium-ion battery cathode material comprises (i) adding inorganic lithium salts, nitric acid compounds, organic nitrogen compounds and additives into water, and mixing to obtain solution A; (ii) preparing porous graphite composite material B doped with rare earth compounds; (iii) adding the porous graphite composite material B into the solution A, mixing well, adding the graphene oxide solution, mixing well, reacting at 100-200℃ for 1-6 hours, filtering, washing and vacuum drying to obtain the inorganic lithium salt-coated graphite composite body of massive structure. USE - The method is useful for preparing a high-rate lithium-ion battery cathode material. ADVANTAGE - The method can improve the first-time efficiency and the fast charging capability of graphite, and take into account energy density and high-temperature performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for high-rate lithium-ion battery cathode material, prepared as mentioned above.