Radtke, Mariusz ; Hess, Christian (2023)
Operando Raman Shift Replaces Current in Electrochemical Analysis of Li-ion Batteries: A Comparative Study.
In: Molecules, 2021, 26 (15)
doi: 10.26083/tuprints-00019600
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Li-rich and catalytically active γ-LiₓV₂O₅ (x = 1.48) was investigated as a cathode for its heterogeneous charge transfer kinetics. Using a specially designed two-electrode system lithium half cell, Butler–Volmer analysis was performed, and Raman spectra were acquired in 18 mV intervals. A direct correlation was observed between the Raman shift of the active modes Ag, Bg, Au, and Bu, and the development of the Faraday current at the working electrode. The Raman intensity and the Raman shift were implemented to replace the current in a Tafel plot used for the analysis of Butler–Volmer kinetics. Striking similarities in the charge transfer proportionality constants α were found for current and Raman-based analysis. The potential of this new method of Raman-aided electrochemical detection at the diffraction limit is discussed.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Radtke, Mariusz ; Hess, Christian |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Operando Raman Shift Replaces Current in Electrochemical Analysis of Li-ion Batteries: A Comparative Study |
| Sprache: | Englisch |
| Publikationsjahr: | 14 November 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2021 |
| Ort der Erstveröffentlichung: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Molecules |
| Jahrgang/Volume einer Zeitschrift: | 26 |
| (Heft-)Nummer: | 15 |
| Kollation: | 12 Seiten |
| DOI: | 10.26083/tuprints-00019600 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/19600 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Li-rich and catalytically active γ-LiₓV₂O₅ (x = 1.48) was investigated as a cathode for its heterogeneous charge transfer kinetics. Using a specially designed two-electrode system lithium half cell, Butler–Volmer analysis was performed, and Raman spectra were acquired in 18 mV intervals. A direct correlation was observed between the Raman shift of the active modes Ag, Bg, Au, and Bu, and the development of the Faraday current at the working electrode. The Raman intensity and the Raman shift were implemented to replace the current in a Tafel plot used for the analysis of Butler–Volmer kinetics. Striking similarities in the charge transfer proportionality constants α were found for current and Raman-based analysis. The potential of this new method of Raman-aided electrochemical detection at the diffraction limit is discussed. |
| Freie Schlagworte: | lithium-ion battery, Butler–Volmer kinetics, operando Raman spectroscopy, kinetics |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-196001 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Cutting-Edge Physical Chemistry Research in Europe |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Physikalische Chemie |
| Hinterlegungsdatum: | 14 Nov 2023 13:54 |
| Letzte Änderung: | 15 Nov 2023 08:49 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- Operando Raman Shift Replaces Current in Electrochemical Analysis of Li-ion Batteries: A Comparative Study. (deposited 14 Nov 2023 13:54) [Gegenwärtig angezeigt]
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