A methodology for characterizing lithium-ion batteries under constant-current charging based on spectral analysis

Nikonov, Anatolij (avtor), Nagode, Marko (avtor), Klemenc, Jernej (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: voltage spectra, retardation times, Voigt elements, CC charging, primary and secondary phases
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 14 str.
• Številčenje: Vol. 16, iss. 6, art. 308
• PID: 20.500.12556/RUL-169535
• UDK: 621.3
• ISSN pri članku: 2032-6653
• DOI: 10.3390/wevj16060308
• COBISS.SI-ID: 238016515
• Datum objave v RUL: 03.06.2025

Gradivo je del revije

• Naslov: World electric vehicle journal
• Skrajšan naslov: World electr. veh. j.
• Založnik: MDPI
• ISSN: 2032-6653
• COBISS.SI-ID: 528277785

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P2-0182
• Naslov: Razvojna vrednotenja