| Zugriffsnummer | 43069 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Physico-chemical modeling of a lithium-ion battery: an ageing study with electrochemical impedance spectroscopy |
| Autor(in); Institution |
Heinrich, Marco; 3.1, Allgemeine und Anorganische Chemie, PTB-Braunschweig; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
Wolff, Nicolas; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
Harting, Nina; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
Laue, Vincent; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
Röder, Fridolin; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
Seitz, Steffen; 3.1, Allgemeine und Anorganische Chemie, PTB-Braunschweig
Krewer, Ulrike; TU Braunschweig, Institute of Energy and Process Systems Engineering, Braunschweig, GERMANY; TU Braunschweig, Battery Lab Factory, Braunschweig, GERMANY
|
| Quelle/Jahr | Batteries & Supercaps: 2 (2019), 6, 530 - 540 |
| Availability | [online only] |
| ISSN | 2566-6223 |
| DOI | |
| Verlag | Weinheim: Wiley-VCH |
| Freie Schlagworte | double layer ; electrochemical impedance spectroscopy ; graphite ; lithium-ion batteries ; nickelmanganese cobalt oxide |
| Zusammenfassung | Electrochemical Impedance Spectroscopy measurements and simulations are performed on a nickel manganese cobalt oxide (NMC)/graphite pouch cell. A physico‐chemical continuum battery model is extended by a physical ageing model including a Solid Electrolyte Interphase. The model assumes a loss of electrochemically active surface area at anode and cathode as well as a growth of solid electrolyte interphase (SEI) layer thickness. These ageing parameters have been adjusted with an algorithm to achieve agreement between simulated and measured spectra. The results for a 28 mAh pouch cell show that the ageing model is suitable to correlate the change of the impedance spectrum with the degree of degradation of the cell. In detail, SEI thickness is shown to increase by 45 nm, while the anode and cathode loose 20 % and 57 % of their electrochemically active surface area, respectively. In addition, deviating measurement conditions and the end of life of the cell can be indicated by the parameter identification algorithm. Furthermore, it is demonstrated, that the change of the high and low frequency semicircles can be assigned to the anode SEI and cathode respectively. |
| Kostenfreier Zugang | Open Access Hybrid |
| Themenbereich der Metrologie | Metrologie in der Chemie und Stoffeigenschaften |
| Innovationscluster | Umwelt und Klima |
| Forschungsprojekt | FV-31014 - Referenzmessverfahren in der Qualitätssicherung zur Bestimmung des Gesundheitszustandes einer Li-Ionen-Batterie mittels Impedanzspektroskopie |
Zitierung
Heinrich, M., Wolff, N., Harting, N., Laue, V., Röder, F., Seitz, S., & Krewer, U. (2019). Physico-chemical modeling of a lithium-ion battery: an ageing study with electrochemical impedance spectroscopy. Batteries & Supercaps, 2(6), 530–540. https://doi.org/10.1002/batt.201900011