The preparation and role of Li2ZrO3 surface coating LiNi0.5Co0.2Mn0.3O2 as cathode for lithium-ion batteries

LiNi0.5Co0.2Mn0.3O2 is coated by Li2ZrO3 layer with the thickness about 20 nm. Li2ZrO3 coating effectively improves cycling performance and rate capability. LZO-LMO delivers 194 mAh g−1 at 0.2 C and presents improved cyclic performance at 55 °C.