Preparation and electrochemical properties of submicron LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2 as cathode material for lithium ion batteries

摘要

Submicron LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2 as a cathode material for lithium-ion batteries was prepared by a spray drying assisted solid-state method. The crystal structure, morphology and electrochemical properties of LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2 were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscope, energy-dispersive spectroscopy and charge-discharge testing. Single-phase layered LiNi_(0.6)Co_(0.2)Mn_(0.2)O_2 was obtained. The material delivered a reversible charge/discharge capacity of 179.8 mAh g~(-1) at C/10, and showed excellent cycling performance and rate capability.