POSCO Holdings Inc.
CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Abstract:

The present invention has been made in an effort to provide a preparation method of a positive electrode active material having improved structural stability and electrochemical characteristics by simultaneously coating Mn and B on the surface of a nickel-based lithium metal oxide, and to provide a lithium rechargeable battery including a positive electrode having a positive electrode active material that prepared by such a method.