METHOD FOR SEPARATING TRANSITION METAL FROM WASTE CATHODE MATERIAL

The present invention relates to a method for separating a transition metal from a waste positive electrode material, wherein the method includes Step 1 of preparing a waste positive electrode material represented by Formula 1, Step 2 of heat treating the waste positive electrode material in an inert gas atmosphere or an oxygen atmosphere to phase separate the waste positive electrode material into a lithium oxide and a metal oxide, Step 3 of cooling an obtained product of Step 2 to room temperature in an inert atmosphere, and Step 4 of mixing a cooled product cooled to room temperature in Step 3 with distilled water, and then filtering the mixture to leach a transition metal.