20.500.12556/RUL-169535 A methodology for characterizing lithium-ion batteries under constant-current charging based on spectral analysis This study addresses the challenge of gaining a deeper understanding of charging and discharging mechanisms in lithium-ion batteries to enhance their reliability and safety, necessitating the development of novel modeling techniques. A comprehensive analytical model is introduced, capable of accurately reconstructing the voltage rise during constant-current charging. The novelty of this approach lies in its use of spectral analysis (similar to that employed in linear viscoelasticity) to describe the physical processes occurring during battery charging. The model’s effectiveness was validated using experimental data from a rechargeable lithium-ion battery with a nominal capacity of 25 Ah and a nominal voltage of 3.2 V. The results demonstrate that spectral characterization is a reliable tool for modeling battery response to constant-current charging, with the potential for application in battery lifespan prediction. voltage spectra retardation times Voigt elements CC charging primary and secondary phases true false true Angleški jezik Ni določen Članek v reviji 2025-06-03 07:10:07 2025-06-03 07:10:14 2025-06-04 04:45:10 0000-00-00 00:00:00 2025 0 0 14 str. iss. 6, art. 308 Vol. 16 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.3 2032-6653 10.3390/wevj16060308 238016515 Nikonov,_Nagode,_Klemenc_-_A_Methodology_for_Characterizing.pdf Nikonov,_Nagode,_Klemenc_-_A_Methodology_for_Characterizing.pdf 1 5970CD9922C99A9F8941DBF27BA79722 b48bd128e334969085e0e88db6d79829a21f94ab40fb6e3773752fa945d81e39 0c832414-4038-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210978 https://www.mdpi.com/2032-6653/16/6/308 1 b8a2187f-4037-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=210977 Fakulteta za strojništvo 0 0 0