Patent ID: 8673170
Filing Date: 2014-03-18
Classification: C01G,C01P,H01M,Y02E

Abstract:
1. A lithium metal oxide powder for use as a cathode material in a rechargeable battery, having the general formula Li a Ni x Co y M z O 2±e A f , wherein wherein M comprises one or more elements selected from the group consisting of Al, Mg, and Ti; A comprises either one or both of S and C; wherein said powder has a particle size distribution defining a D10, D50 and D90; and said x and z parameters vary with the particle size of said powder; wherein either one or both of: x1−x2≧0.010 and z2−z1≧0.010; x1 and z1 being the parameters corresponding to particles having a particle size D90; and x2 and z2 being the parameters corresponding to particles having a particle size D10.