METHOD FOR MANUFACTURING METAL COMPOSITE OXIDE USING LI-ION BATTERY AND CATHODE ACTIVE MATERIAL WITH THE SAME

摘要

PURPOSE: A method for manufacturing metal composite oxide is provided to promote the growth of precursor particles for manufacturing a positive electrode active material, to easily control an average particle diameter, and to increase a production yield. CONSTITUTION: A method for manufacturing metal composite oxide comprises the following steps: injecting a first metal salt solution with nickel and cobalt into a reactor in which distilled water is put; injecting a second metal salt solution having hydrogen ion concentration(pH) 6~12 into the reactor; and precipitating nickel composite hydroxide precursor particles by controlling pH of the whole metal salt solution in 11-13 while injecting NaOH solution and ammonia aqueous solution into the reactor.