Lithium-rich anti-perovskite-coated LCO-based lithium complex, method for producing the same, positive electrode active material including the same, and lithium secondary battery

摘要

The present invention relates to an LCO-based lithium complex coated with Li-rich anti-perovskite, a method of manufacturing the same, a positive electrode active material including the same, and a lithium secondary battery, comprising lithium lithium anti-perovskite (Lithium Rich Antiperovskites) on the surface of LCO-based particles When a lithium complex in which a coating layer of a compound having a crystal structure of LiRAP is formed is applied as a positive electrode active material, it is advantageous for a battery operated at high voltage, has high lithium ion conductivity, and has thermal stability. Can be applied to lithium secondary batteries operated at high temperature.