Surface modified LiCoO2 as cathode for Li Ion battery application

Samarium oxide (Sm2O3) coated LiCoO2 particles were synthesized using resin coating process. The prepared samples were subjected to characterization using thermogravimetry analysis (TGA)/differential scanning calorimetry (DSC), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and cyclic voltammetry (CV) techniques. The formation of phase pure LiCoO2 was confirmed from XRD studies. No diffraction peak was observed for Sm2O3 phase. SEM images confirmed the spherical particle morphology of bare and Sm2O3 coated LiCoO2 samples. The presence of oxidation and reduction peaks in the CV curve confirmed the de-insertion/insertion of Li ions out/into LiCoO2 structure.