Author: K. V. Babu, Y. N. Rao, P. Ramakrishna, K. S. K. R. C. Sekhar and Ch. Srinivas

DOI: http://doi.org/10.31788/RJC.2026.1939588

Layered structure LiNiO2 and LiNi1/3Co1/3Mn1/3O2 were prepared via the sol-gel auto-combustion route at acalcination temperature of 900 ºC. A comprehensive investigation of the structural, vibrational, and electrochemical characteristics of both cathode materials was conducted. The XRD patterns of both the samples were indexed totheα-NaFeO2 layered structure with no detectable impurity phases. The Rietveld refinement was carried out, whichconfirms the presence of rhombohedral symmetry with a space group of R3m. For LiNi1/3Co1/3Mn1/3O2 powders arelocated at 509.20 and 603.71 cm-1 . In the electrochemical process, a little reduction in the material's initial capacityis compensated for by a considerable increase in cyclability. These findings support that one of the most appealingcathodes for real-world applications, particularly for high-rate lithium-ion batteries used in electric vehicles.

Keywords: Cathode Materials, Lithium Nickel Oxide, XRD, FTIR, Rietveld Refinement, Charge/Discharge Studies.