POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY USING THE SAME

摘要

Provided is a positive active material for a lithium secondary battery comprising a surface material consisting of a spinel-structure lithium metal oxide on a substrate material consisting of a layer-structure lithium metal oxide, thereby capable of realizing not only high capacity but also high-rate discharge performance properties and high capacity maintenance rate for a lithium secondary battery.