Preparation method of lithium nickel cobalt manganese oxide precursor

Method for preparing a lithium nickel cobalt manganese oxide precursor material, comprising the steps of: (1) the molar ratio of nickel ions, manganese ions and cobalt ions 5: 3: 2 mixed aqueous solution of sulfate was added to ultrasound with synthesis reactor apparatus, through the protective gas, while adding a sufficient precipitation of the metal ions and adjusting the pH of the solution stabilized at alkaline precipitating agent and metal complexing agents 10 to 14, after filtration and washing with ultrasound to give a slurry ; (2) added to the stirred slurry reactor, addition of nickel ion, manganese ion and cobalt ion molar ratio of 1: 1: 1 mixed aqueous solution of sulfates, through the protective gas, while adding a sufficient precipitation of the metal ions and the solution adjusting the pH stable in alkaline precipitating agent and metal complexing agents 10 to 14, the precipitate was washed, dried in vacuo; (3) sintering. Obtained using the present invention is lithium nickel cobalt manganate material having a high tap density material precursors lithium nickel cobalt manganese oxide obtained in good processing properties and excellent electrochemical properties.