Facile synthesis and electrochemical properties of carbon-coated LiCoPO4 submicron particles as positive materials for lithium ion batteries

Abstract

Carbon-coated LiCoPO4 submicron particles have been successfully synthesized by combining a facile hydroxide precipitation and the solid-state reaction method. The submicron particles and carbon-coated structure are revealed by scanning electron microscopy and high resolution transmission electron microscopy with selected area electron diffraction measurements. The intial and 30th discharge capacity of the LiCoPO4 nanoparticle electrodes at 0.2 C is 108.9 and 66.6 mAh g-1, respectively. The performance is benefited from the nanostructure and carbon-coating of LiCoPO4, making them as promising cathode materials for lithium ion battery. © 2011 The Electrochemical Society.