Structural and ImpedanceStudies of Nanocrystalline LiCoO2 Particle

Abstract

The most promising power sources for many portable electrical gadgets such as laptop computers, iPod, etc. have been Li-ion Rechargeable batteries. LiCoO2 is the most commercialized cathode material, because of its easy preparation, simple structure, high energy density, low cost, etc. Recently nanoparticles show better electrical and electrochemical properties and hence, could develop improved capacity, energy density and better cycle life Li ion batteries. Synthesis processes play an important role in developing various size and shape of the nanoparticles. In the present work, simple and low cost combustion process was employed and synthesized the lithium cobalt oxide nanoparticles. TG / DTA, XRD, FTIR and Impedance spectroscopy respectively examined thermal behavior, crystalline phase, structure formation and electric conductivity of LiCoO2 particles.