SYNTHESIZING Li[Ni1/3Co1/3Mn1/3]O2 CATHODE MATERIAL FOR LITHIUM-ION BATTERY

Abstract

Layered Li[Ni_1/3Co_1/3Mn_1/3]O₂ cathode material was synthesized using glycine combustion method. The calcinations temperature effect is investigated in term of physical and electrochemical performance of Li[Ni_1/3Co_1/3Mn_1/3]O₂ as a cathode material. The synthesized Li[Ni_1/3Co_1/3Mn_1/3]O₂ was calcine at 500^oC,600^oC,700^oC,800^oC and 900^oC respectively. The XRD analysis refine that a well formed layer structure exist as well as splitting of the peaks (006)/(102) and (108)/(110) showed by the samples. The synthesized cathode material presents as an agglomerated primary structure ranging from 30nm to 300nm. The charge discharge test was carried out under condition 0.14mA current in voltage range 3.0V to 4.2V. Not much differences on the structure of the samples although 800oC delivered highest discharge capacity (211mAh/g) with good capacity retention. Layered Li[Ni_1/3Co_1/3Mn_1/3]O₂ cathode material can be a promising option of LiCoO₂ as it can deliver higher capacity with good capacity retention at voltage range 3.0V to 4.2V.