Proceedings of International Conference on Applied Innovation in IT
2026/03/31, Volume 14, Issue 1, pp.355-362

Computational Analysis of Lithium Ion Battery Cathode Performance


Hussein Subhi Al-Rikabi, Nour Abdalrazaq Hassan, Widad Hano Albanda, Esmaeil Jalali Lavasani and Muhammad Hameed Al-Timimi


Abstract: This study reports on the preparation and investigation of the structural and morphological properties, as well as the electrochemical behavior, of the nanostructured cathode materials LiMn2O4 and Li1.2Mn1.6Ni0.2O4 synthesized via a urea-assisted route. A two-step heat treatment (450 °C for 4 h followed by 800 °C for 5 h) led to the formation of a highly crystalline, single-phase spinel, as confirmed by X-ray diffraction (XRD) patterns, with a contraction of the lattice parameter from (8.32 to 8.19) Å and a decrease in the average crystallite size from (30.14 to 28.94) nm upon nickel incorporation and lithium enrichment in the structure. Field-emission scanning electron microscopy (FE-SEM) images revealed homogeneous octahedral particles, with the average particle size decreasing from (1.15 to 0.44) µm for the doped sample, confirming the effectiveness of the urea route in tailoring the microstructure. Electrochemically, the Li1.2Mn1.6Ni0.2O4 electrode delivered an initial charge/discharge capacity of (245.82/230.51) mAh.g-1 and a coulombic efficiency of (93.77%), outperforming LiMn2O4 (213.45/192.80 mAh.g-1, 90.32% efficiency), together with a marked decrease in charge-transfer resistance and an enhancement in capacity retention to (90.28%) after 100 cycles compared with (86.10%) for the undoped composition. These results demonstrate that the nanostructured spinel Li1.2Mn1.6Ni0.2O4 prepared via the urea route operates efficiently as a cathode in high-voltage lithium-ion batteries fabricated and tested in this study.

Keywords: Lithium-Ion Batteries, Urea Route, Nanomaterials, LMO, LMNO, Cathode Materials.

DOI: Under indexing

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