Synthesis and structural studies of Mg doped LiNi_(0.5)Mn_(0.5)O2 cathode materials for lithium-ion batteries

摘要

Layered Mg doped LiNi_(0.5)Mn_(0.5)O2 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 a-NaFeO2 layered structure with R3m 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 μm. These materials show some changes in the local ion environment, as examined by FT-IR studies.