Patent ID: 9184443
Filing Date: 2015-11-10
Classification: C01D,H01M,Y02E

Abstract:
1. A cathode active material, comprising: at least one secondary particle having at least two agglomerates of primary particles, wherein the at least one secondary particle comprises a nickel-based lithium transition metal oxide material, wherein an average particle diameter of each primary particle is in the range of about 3 μm to about 5 μm, wherein the at least one secondary particle comprises at least one selected from the group consisting of a small particle having an average particle diameter in the range from about 5 μm to about 8 μm and a large particle having an average particle diameter in the range from about 10 μm to about 20 μm, and wherein a full width at half maximum of a (003) peak is in the range from about 0.120 to about 0.125° in an X-ray diffraction (XRD) spectrum analysis.