SINGLE-CRYSTAL CATHODE MATERIAL AND PREPARING METHOD THEREOF

A single-crystal cathode material and preparing method thereof are provided. The method involves mixing and ball milling a lithium source with a nickel-cobalt-manganese precursor and then performing a first sintering treatment to obtain the first main material. The first sintering temperature is 650 to 950° C. and sintering time is 15 to 30 hours. The first main material is then mixed and ball-milled with source A and performing a second sintering treatment to prepare the single-crystal cathode material. The second sintering temperature is 650-950° C. and sintering time is 5-15 hours. A precursor is used to directly prepare a single-crystal cathode material without jet milling.