Kim, Minsu ; Schaeffer, Joachim ; Berliner, Marc D. ; Pedret Sagnier, Berta ; Bazant, Martin Z. ; Findeisen, Rolf ; Braatz, Richard D. (2024)
Fast Charging of Lithium-Ion Batteries While Accounting for Degradation and Cell-to-Cell Variability.
In: Journal of The Electrochemical Society, 171 (9)
doi: 10.1149/1945-7111/ad76dd
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Safety and maintaining high performance are key considerations during the operation of lithium-ion batteries. Battery degradation, in particular lithium plating and loss of active material, is often accelerated by fast charging. This study explores a strategy for the design of fast charging protocols that takes into account the influence of the variability between battery cells on factors that can impact degradation. We employ a non-intrusive polynomial chaos expansion to identify the key parameters for each degradation condition. We explore the reduction of battery degradation by adjusting constraints such as the maximum C-rate and voltage. Tight control of the key adjustable parameters contributes significantly to reducing the confidence interval of the degradation factors, allowing reduced charging time with minimal degradation. The application of our approach to two state-dependent fast charging protocols for a LiC6/LiCoO2 battery indicates the value in explicitly accounting for uncertainties when designing charging protocols that minimize degradation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Kim, Minsu ; Schaeffer, Joachim ; Berliner, Marc D. ; Pedret Sagnier, Berta ; Bazant, Martin Z. ; Findeisen, Rolf ; Braatz, Richard D. |
| Art des Eintrags: | Bibliographie |
| Titel: | Fast Charging of Lithium-Ion Batteries While Accounting for Degradation and Cell-to-Cell Variability |
| Sprache: | Englisch |
| Publikationsjahr: | 13 September 2024 |
| Verlag: | IOP Publ. |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of The Electrochemical Society |
| Jahrgang/Volume einer Zeitschrift: | 171 |
| (Heft-)Nummer: | 9 |
| Kollation: | 14 Seiten |
| DOI: | 10.1149/1945-7111/ad76dd |
| Kurzbeschreibung (Abstract): | Safety and maintaining high performance are key considerations during the operation of lithium-ion batteries. Battery degradation, in particular lithium plating and loss of active material, is often accelerated by fast charging. This study explores a strategy for the design of fast charging protocols that takes into account the influence of the variability between battery cells on factors that can impact degradation. We employ a non-intrusive polynomial chaos expansion to identify the key parameters for each degradation condition. We explore the reduction of battery degradation by adjusting constraints such as the maximum C-rate and voltage. Tight control of the key adjustable parameters contributes significantly to reducing the confidence interval of the degradation factors, allowing reduced charging time with minimal degradation. The application of our approach to two state-dependent fast charging protocols for a LiC6/LiCoO2 battery indicates the value in explicitly accounting for uncertainties when designing charging protocols that minimize degradation. |
| ID-Nummer: | Artikel-ID: 090517 |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Automatisierungstechnik und Mechatronik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Automatisierungstechnik und Mechatronik > Control and Cyber-Physical Systems (CCPS) |
| Hinterlegungsdatum: | 06 Nov 2024 12:59 |
| Letzte Änderung: | 06 Nov 2024 12:59 |
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