METHOD FOR PREPARATION OF POWER-TYPE NICKEL COBALT MANGANATE LITHIUM POSITIVE ELECTRODE MATERIAL

摘要

A method for preparation of a power-type nickel cobalt manganate lithium positive electrode material; first, dissolving in an organic solvent a portion of the lithium source, nickel, cobalt, and manganese source, then dissolving in water a portion of the lithium source, while at the same time performing granulation by means of a dual-nozzle pyrolysis furnace, and mixing in the furnace; then sintering the mixed powder at high temperature to obtain the nickel cobalt manganate lithium positive electrode material. This preparation process does not produce NH4 + or Na+ ions, thus substantially mitigating pollution of the environment; the obtained nickel cobalt manganate lithium material has good sphericity and its components are uniformly distributed; tap density is high, cycling stability is excellent during the charge/discharge cycle, and specific discharge capacity at the first discharge is significantly increased.