Patent ID: 7906239
Filing Date: 2011-03-15
Classification: C01G,C01P,H01M,Y02E,Y02P,Y10T

Abstract:
1. A cathode active material comprising: a coating layer which is formed on at least a part of a composite oxide particle and contains an oxide including lithium Li and an oxide including a coating element including nickel, or nickel and manganese; and a surface layer which is formed on at least a part of the coating layer and includes molybdenum, wherein the composite oxide particle has an average composition represented by formula 1: wherein M is at least one element selected from the group consisting of magnesium, aluminum, boron, titanium, vanadium, chromium, manganese, iron, nickel, copper, zinc, molybdenum, tin, and tungsten; and x, y and z satisfy the relationships of −0.10≦x≦0.10, 0≦y<0.50, and −0.10≦z≦0.20.