Patent ID: 9070489
Filing Date: 2015-06-30
Classification: B82Y,C01G,C01P,H01B,H01M,Y02E

Abstract:
1. A composition having a formula Li 1+a Ni b Co c Mn d M e O x , with −0.05≦a≦0.14, 0.1≦b≦0.25, 0≦c≦0.2, 0.45≦d≦0.8, 0≦e≦0.02, a+b+c+d+e=1, (1+a)/(b+c+d+e)≦1.34 and M is a metal element different from Li, Ni, Co and Mn, wherein the composition exhibits a first cycle irreversible capacity loss in a lithium battery of no more than about 10% of the first charge specific capacity when discharged at C/20 from 4.6V to 2V.