Ternary lithium nickel cobalt manganese oxide material and preparation method and application thereof

The invention discloses a ternary lithium nickel cobalt manganese oxide material and a preparation method, and the preparation method comprises the following steps: by taking cobalt-manganese oxide asa template, a cobalt source and a manganese source, nickel acetate hexahydrate and lithium carbonate as a nickel source and a lithium source, and deionized water as a solvent, synthesizing cobalt manganese oxalate by adopting a hydrothermal method, and calcining in air to obtain a cobalt-manganese oxide precursor; and finally, adding a nickel source and a lithium source, performing uniform mixingthrough ball milling, introducing oxygen, and performing sintering in a tubular furnace to obtain the ternary lithium nickel cobalt manganate material. The ternary lithium nickel cobalt manganese oxide material has a large specific surface area, is conducive to full contact and ion transmission between an electrolyte and an active substance, increases reaction active sites, overcomes the disadvantage of poor large current