Donzelli, Manuel ; Ferber, Thimo ; Vanita, Vanita ; Waidha, Aamir Iqbal ; Müller, Philipp ; Mellin, Maximilian ; Hausbrand, René ; Jaegermann, Wolfram ; Clemens, Oliver (2022)
On the Surface Modification of LLZTO with LiF via a Gas-Phase Approach and the Characterization of the Interfaces of LiF with LLZTO as Well as PEO+LiTFSI.
In: Materials, 2022, 15 (19)
doi: 10.26083/tuprints-00022839
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
In this study we present gas-phase fluorination as a method to create a thin LiF layer on Li₆.₅La₃Zr₁.₅Ta₀.₅O₁₂ (LLZTO). We compared these fluorinated films with LiF films produced by RF-magnetron sputtering, where we investigated the interface between the LLZTO and the deposited LiF showing no formation of a reaction layer. Furthermore, we investigated the ability of this LiF layer as a protection layer against Li₂CO₃ formation in ambient air. By this, we show that Li₂CO₃ formation is absent at the LLZTO surface after 24 h in ambient air, supporting the protective character of the formed LiF films, and hence potentially enhancing the handling of LLZTO in air for battery production. With respect to the use within hybrid electrolytes consisting of LLZTO and a mixture of polyethylene oxide (PEO) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), we also investigated the interface between the formed LiF films and a mixture of PEO+LiTFSI by X-ray photoelectron spectroscopy (XPS), showing decomposition of the LiTFSI at the interface.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Donzelli, Manuel ; Ferber, Thimo ; Vanita, Vanita ; Waidha, Aamir Iqbal ; Müller, Philipp ; Mellin, Maximilian ; Hausbrand, René ; Jaegermann, Wolfram ; Clemens, Oliver |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | On the Surface Modification of LLZTO with LiF via a Gas-Phase Approach and the Characterization of the Interfaces of LiF with LLZTO as Well as PEO+LiTFSI |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 15 |
| (Heft-)Nummer: | 19 |
| Kollation: | 16 Seiten |
| DOI: | 10.26083/tuprints-00022839 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22839 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | In this study we present gas-phase fluorination as a method to create a thin LiF layer on Li₆.₅La₃Zr₁.₅Ta₀.₅O₁₂ (LLZTO). We compared these fluorinated films with LiF films produced by RF-magnetron sputtering, where we investigated the interface between the LLZTO and the deposited LiF showing no formation of a reaction layer. Furthermore, we investigated the ability of this LiF layer as a protection layer against Li₂CO₃ formation in ambient air. By this, we show that Li₂CO₃ formation is absent at the LLZTO surface after 24 h in ambient air, supporting the protective character of the formed LiF films, and hence potentially enhancing the handling of LLZTO in air for battery production. With respect to the use within hybrid electrolytes consisting of LLZTO and a mixture of polyethylene oxide (PEO) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), we also investigated the interface between the formed LiF films and a mixture of PEO+LiTFSI by X-ray photoelectron spectroscopy (XPS), showing decomposition of the LiTFSI at the interface. |
| Freie Schlagworte: | LLZTO, surface modification, interface stability, fluorination, XPS |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-228397 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Development of Novel Electrode and Electrolyte Materials for Lithium and Sodium Ion Batteries |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialdesign durch Synthese 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung |
| Hinterlegungsdatum: | 07 Nov 2022 12:23 |
| Letzte Änderung: | 08 Nov 2022 06:12 |
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