LixNi0.25Mn0.75Oy (0.5 ≤x≤ 2, 2 ≤y≤ 2.75) compounds for high-energy lithium-ion batteries

LixNi0.25Mn0.75Oy (0.5 ≤x≤ 2, 2 ≤y≤ 2.75) compounds for high-energy lithium-ion batteries