Synthesis and Characterization of Fe doped Li(Li0.21Mn0.54Ni0.125Co0.125)O2 as the cathode materials For Battery Applications

In this paper, the nanoparticles of Li(Li0.21Mn0.54Ni0.125Co0.125-x)FexO2 (x=0%, 0.01%, 0.025% 0.05% ) were prepared by sol-gel method, and the structural and chemical properties of the samples were investigated .These properties of samples characterized by X-ray diffraction (XRD), field-scattering microscopy (FESEM), X-ray energy spectroscopy (EDS), thermogravimetric analysis (TGA), differential thermal analysis (DTA), infrared spectroscopy (FTIR), and the results of characterization were investigation and reveled crystalline structures for pure and impure nanoparticles. The reflection peaks indicate that the samples have standard α-NaFeO2 layered structure with the space group R3m, except for the super lattice ordering between 22°-25°. The FESEM images for pure and impure samples have shown that these nanoparticles have Hexagonal structures. The particle size of nanopowders in the range of 50-80 nm the chemical analysis of EDS has proven the presence of Ni, Mn, Co and Fe in the samples. TG /DTA measurements showed weight loss in nanopowders of pure and impure. In infrared spectroscopy (FTIR), the connection bonds and chemical elements used in these nanopowders have been investigated.