Facile synthesis and electrochemical properties of carbon-coated LiCoPO_4 submicron particles as positive materials for lithium ion batteries

摘要

Carbon-coated LiCoPO_4 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 LiCoPO_4 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 LiCoPO_4, making them as promising cathode materials for lithium ion battery.