Knozowski, Dominik ; Graczyk-Zajac, Magdalena ; Trykowski, Grzegorz ; Wilamowska-Zawłocka, Monika (2020)
Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices.
In: Materials, 13 (19)
doi: 10.3390/ma13194302
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
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: | 2020 |
| Autor(en): | Knozowski, Dominik ; Graczyk-Zajac, Magdalena ; Trykowski, Grzegorz ; Wilamowska-Zawłocka, Monika |
| Art des Eintrags: | Bibliographie |
| Titel: | Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices |
| Sprache: | Englisch |
| Publikationsjahr: | 26 September 2020 |
| Ort: | Basel |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials |
| Jahrgang/Volume einer Zeitschrift: | 13 |
| (Heft-)Nummer: | 19 |
| Kollation: | 17 Seiten |
| DOI: | 10.3390/ma13194302 |
| Zugehörige Links: | |
| 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) |
| Zusätzliche Informationen: | Foundation for Polish Science under REINTEGRATION programme, Grant Number POIR.04.04.00-00-4582/17-00. |
| 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: | 22 Okt 2020 06:28 |
| Letzte Änderung: | 04 Dez 2023 12:34 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices. (deposited 01 Dez 2023 14:01)
- Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices. (deposited 22 Okt 2020 06:28) [Gegenwärtig angezeigt]
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