Method for producing positive electrode active material precursor for lithium secondary battery exhibiting concentration gradient and positive electrode active material, and positive electrode active material precursor for positive electrode active material for lithium secondary battery exhibiting concentration gradient produced thereby

摘要

TECHNICAL FIELD The present invention relates to a method for producing a positive electrode active material for a lithium secondary battery showing a concentration gradient and a positive electrode active material for a lithium secondary battery exhibiting a concentration gradient produced by the method and more particularly to a heat diffusion , A barrier layer is formed so that the concentration gradient layer can be maintained, and a method for producing a positive electrode active material for a lithium secondary battery having a concentration gradient which shows a concentration gradient, And a positive electrode active material for a secondary battery. (FIG.