Enhancing the high-voltage electrochemical performance of LiNi 0.8 Co 0.1 Mn 0.1 O 2 cathodes through La 0.2 Sr 0.8 TiO 3 surface coating

observed for the pristine cathode. The enhanced electrochemical properties originate from the highly conductive LSTO protective barrier, which creates an amorphous layer of approximately 4 nm in thickness on the NCM811 surface. The effective separation between NCM811 and the electrolyte provided by this coating leads to the inhibition of severe interfacial side reactions, coupled with enhanced electron transfer kinetics at the electrode/electrolyte interface.