Lithium-containing electrode material for electrochemical cell systems

An electrochemical cell system comprising:

• a cathode material including a first material layer and a second material layer disposed next to the first material layer, the first and the second material layers each independently including a Li-containing oxide of the formula of Li(NixCoyMz)O2, wherein M is an element different from Li, Ni, Co, or O, wherein x, y, and z are each independently between 0 and hand the sum of x, y, and z is 1, and wherein the first and second material layers differ from each other in at least one of the values for x, y, and z and the composition for M, the first material layer further including an oxygen scavenger oxide contacting the Li-containing oxide, and the Li-containing oxide of the first material layer further comprising a dopant intermixed with the Li-containing oxide and including Ce;
• and
• a current collector in electronic communication with the cathode material, the current collector being disposed adjacent to the first material layer and spaced apart from the second material layer.