▎ 摘　　要

NOVELTY - Preparing a positive electrode material of a lithium battery involves: (1) preparing an ammonium fluoride solution; (2) preparing a nitrate graphene/ethanol mixed solution; and (3) adding the ammonium fluoride solution to the nitrate graphene/ethanol mixed solution, centrifuging and drying to a nickel cobalt fluoride/graphene composite material. USE - The method is useful for preparing a positive electrode material of a lithium battery. ADVANTAGE - The method: enables simple preparation of the positive electrode material of lithium battery with high efficiency; and effectively increases the electron mobility and dispersibility of the nickel cobalt fluoride.