POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME

An object is to provide a positive electrode active material capable of achieving both higher battery capacity and suppression of gelation of a positive electrode mixture paste at the time of battery production at a high level. [0002] A positive electrode active material for non-aqueous electrolyte secondary batteries includes a lithium-nickel composite oxide particle and a coating layer attached to at least a part of a surface of the particle. The lithium-nickel composite oxide particle contains boron therein, and the coating layer contains a titanium compound.