Cycling performance of Li[Li_(2/10)Ni_(1/10)Co_(2/10)Mn_(5/10)]O_2 synthesized by sol-gel route

摘要

Li[Li_(2/10)Ni_(1/10)Co_(2/10)Mn_(5/10)]O_2 was synthesized by a sol-gel method using glycolic acid as chelating agent. The prepared compound was subjected to XRD, SEM, cyclic voltammetry and charge-discharge analysis. The electrochemical studies reveal that the compound, Li[Li_(2/10)Ni_(1/10)Co_(2/10)Mn_(5/10)]O_2, delivers a capacity of about 340 mAh g~(-1) during the first charging cycle with an irreversible capacity loss of 180 mAh g~(-1) and also undergoes capacity fading upon prolonged cycling. The cyclic voltammetry data are reflected in the charge-discharge studies. The effect of the dopants on the electrochemical properties of the compound is discussed.