Nickel-cobalt-manganese ternary precursor, preparation method therefor, and use thereof

Abstract

The present application relates to a nickel-cobalt-manganese ternary precursor, a preparation method therefor, and use thereof. The nickel-cobalt-manganese ternary precursor comprises a core and a coating layer formed by stacking a plurality of primary particles on the surface of the core. The porosity of the core is greater than the porosity of the coating layer. The particle diameter of the core is less than or equal to 1 μm. The ratio of the radius of the core to the thickness of the coating layer is less than or equal to 1:2.75. The nickel-cobalt-manganese ternary precursor of the present application not only has an ultra-low specific surface area of 5 m2/g or less, but also has excellent dispersability and uniformity. When the nickel-cobalt-manganese ternary precursor is used for preparing a cathode material, the specific surface area of the cathode material can be reduced, thereby improving the cycle performance of a battery.

Dependencies are inferred from the claim text.