Lithium Nickel-Manganese-Cobalt Oxide Cathode Powders for High Voltage Lithium-Ion Batteries

A lithium metal oxide powder for a cathode material in a rechargeable battery comprises a core and a surface layer. The surface layer is delimited by an outer and an inner interface. The inner interface is in contact with the core. The cathode material has a layered crystal structure comprising the elements Li, M, and oxygen. M has the formula M=(Ni(NiMn)Co)A, with 0.15≤x≤0.30, 0.20≤z≤0.55, x+y+z=1 and 0