Synthesis of LiCo1/3Ni1/3Mn1/3O2 by a Simple Combustion Method and Electrochemical Properties

Abstract

LiCo1/3Ni1/3Mn1/3O2 was synthesized by a simple combustion method and its electrochemical properties were examined. The XRD patterns of the samples calcined at 900°C and 1,000°C showed sharp peaks for an $$R\bar 3$$ m structure with clear splitting between the (006) and (102) peaks and between the (108) and (110) peaks. The size of the particles increased as the calcination temperature rose. The samples after combustion, and after combustion and calcinations, were analyzed by FT-IR. The samples calcined at 900°C and 1,000°C had similar a and c values, and similar first discharge capacities (176 mAh/g and 177 mAh/g, respectively, at 20 mA/g), but the sample calcined at 900°C had better cycling performance. The sample calcined at 900°C had smaller particles and more uniform particle sizes than the sample calcined at 1,000°C.