| abstract |
Lithium-containing composite oxidation for a non-aqueous electrolyte secondary battery having a small amount of free alkali, a wide operating voltage, a high discharge capacity, and excellent charge / discharge cycle characteristics, storage characteristics, safety and coating properties Provide physical particles. A general formula Li p Ni x Co y Mn z Me w O 2 (Me represents Ni, Co, transition metal elements other than Mn, Al, at least one Sn or alkaline earth metal .0. 8 ≦ p ≦ 1.3, 0.1 ≦ x ≦ 0.85, 0.1 ≦ y ≦ 1.0, 0 ≦ z ≦ 0.6, 0 ≦ w ≦ 0.2) A composite oxide particle comprising a lanthanum atom and an A atom (A is a transition metal element other than Ni, Co, Mn, Al, Sn, or an alkaline earth metal) on a surface layer of the particle. A lithium-containing composite oxide particle for a non-aqueous electrolyte secondary battery. [Selection figure] None |