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NICKEL LITHIUM METAL COMPOSITE OXIDE PRODUCTION METHOD, NICKEL LITHIUM METAL COMPOSITE OXIDE OBTAINED BY PRODUCTION METHOD, AND CATHODE ACTIVE MATERIAL INCLUDING SAME
NICKEL LITHIUM METAL COMPOSITE OXIDE PRODUCTION METHOD, NICKEL LITHIUM METAL COMPOSITE OXIDE OBTAINED BY PRODUCTION METHOD, AND CATHODE ACTIVE MATERIAL INCLUDING SAME
[Task] Performance improvement and cost reduction in a positive electrode active material for a lithium ion battery. [Means for Resolution] A method of manufacturing a lithium nickel composite oxide including the following Steps 1 to 7: (Step 1) a dissolving step; (Step 2) a precipitation step; (Step 3) a filtering step; (Step 4) a drying step; (Step 5) a mixing step of mixing aluminum hydroxide and lithium carbonate with the precursor powder, which is obtained in Step 4, to obtain a mixture; (Step 6) a high-temperature firing step of firing the mixture, which is obtained in Step 5, at a high temperature of higher than 790°C to obtain a fired product; and (Step 7) a low-temperature firing step of firing the fired product, which has undergone Step 6, at a low temperature of lower than 790°C.
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