Patent ID: 8546018
Filing Date: 2013-10-01
Classification: C01F,C01G,C01P,H01M,Y02E

Abstract:
1. Li—Ni-based composite oxide particles comprising secondary particles of Li—Ni-based oxide particles having a Li—Mn-based composite oxide being present on a surface of the respective secondary particle with a composition represented by the formula: where M2 is at least one metal selected from the group consisting of Co, Ni, Al, Fe, Mg, Zr, Ti and B; and x2, y2 and z2 satisfy 1/2<x2≦4/3, 2/3≦y2≦1 and 0≦z2<4/5, respectively, Co and/or Al being present therewithin, and a concentration of Mn being increased from a center toward a surface of the respective particles.