Knozowski, Dominik ; Graczyk-Zajac, Magdalena ; Trykowski, Grzegorz ; Wilamowska-Zawłocka, Monika (2023)
Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices.
In: Materials, 2020, 13 (19)
doi: 10.26083/tuprints-00015952
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Herein we present a study on polymer-derived silicon oxycarbide (SiOC)/graphite composites for a potential application as an electrode in high power energy storage devices, such as Lithium-Ion Capacitor (LIC). The composites were processed using high power ultrasound-assisted sol-gel synthesis followed by pyrolysis. The intensive sonication enhances gelation and drying process, improving the homogenous distribution of the graphitic flakes in the preceramic blends. The physicochemical investigation of SiOC/graphite composites using X-ray diffraction, ²⁹Si solid state NMR and Raman spectroscopy indicated no reaction occurring between the components. The electrochemical measurements revealed enhanced capacity (by up to 63%) at high current rates (1.86 A g⁻¹) recorded for SiOC/graphite composite compared to the pure components. Moreover, the addition of graphite to the SiOC matrix decreased the value of delithiation potential, which is a desirable feature for anodes in LIC.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Knozowski, Dominik ; Graczyk-Zajac, Magdalena ; Trykowski, Grzegorz ; Wilamowska-Zawłocka, Monika |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Dezember 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2020 |
| Ort der Erstveröffentlichung: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 13 |
| (Heft-)Nummer: | 19 |
| Kollation: | 17 Seiten |
| DOI: | 10.26083/tuprints-00015952 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/15952 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Herein we present a study on polymer-derived silicon oxycarbide (SiOC)/graphite composites for a potential application as an electrode in high power energy storage devices, such as Lithium-Ion Capacitor (LIC). The composites were processed using high power ultrasound-assisted sol-gel synthesis followed by pyrolysis. The intensive sonication enhances gelation and drying process, improving the homogenous distribution of the graphitic flakes in the preceramic blends. The physicochemical investigation of SiOC/graphite composites using X-ray diffraction, ²⁹Si solid state NMR and Raman spectroscopy indicated no reaction occurring between the components. The electrochemical measurements revealed enhanced capacity (by up to 63%) at high current rates (1.86 A g⁻¹) recorded for SiOC/graphite composite compared to the pure components. Moreover, the addition of graphite to the SiOC matrix decreased the value of delithiation potential, which is a desirable feature for anodes in LIC. |
| Freie Schlagworte: | Silicon Oxycarbide (SiOC), graphite, composites, energy storage, lithium-ion capacitor (LIC) |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-159525 |
| Zusätzliche Informationen: | This article belongs to the Special Issue Electrode Materials for Energy Storage Applications |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 01 Dez 2023 14:01 |
| Letzte Änderung: | 04 Dez 2023 12:33 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices. (deposited 01 Dez 2023 14:01) [Gegenwärtig angezeigt]
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