CRYSTALLIZED MANGANESE COMPOSITE OXIDE, LITHIUM-MANGANESE COMPOSITE OXIDE FOR LITHIUM SECONDARY BATTERY AND THE METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a positive electrode active material for a lithium secondary battery.SOLUTION: In a manganese complex oxide, the positive electrode active material for the lithium secondary battery and method for producing the same, a crystal form is controlled such that small primary particles are combined to form a secondary particle so as to increase efficiency of the lithium secondary battery by maximizing a surface area and increasing density of tabs, and specific metal is added so as to suppress the Jahn-Teller effect.