Synthesis and structural studies of Mg doped LiNi0.5Mn0.5O2 cathode materials for lithium-ion batteries

Layered Mg doped LiNi0.5Mn0.5O2 materials have been synthesized by sol-gel method. The physical properties of these materials were examined by XRD, FESEM and FT-IR studies. From XRD patterns, the phase formation of alpha-NaFeO2 layered structure with R (3) over barm space group is confirmed. The surface morphology of the synthesized materials has been examined by FESEM analysis in which the average particle size is found to be about 2 - 2.5 mu m. These materials show some changes in the local ion environment, as examined by FT-IR studies.