Zambotti, Andrea ; Qu, Fangmu ; Costa, Giacomo ; Graczyk-Zajac, Magdalena ; Sorarù, Gian Domenico (2023)
Polymer‐derived ceramic aerogels to immobilize sulfur for Li‐S batteries.
In: Energy Technology : Generation, Conversion, Storage, Distribution, 11 (12)
doi: 10.1002/ente.202300488
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Lithium–sulfur batteries are among the promising high‐capacity candidates owing to the superior theoretical capacity of sulfur, when compared with conventional cathodes such as LiCoO₂. However, several issues must be addressed before these batteries can be considered fully operational. Major issues regard the insulating nature of sulfur and the so‐called shuttle effect of soluble polysulfides, which dramatically reduces the cathode capacity upon cycling. Herein, three carbon‐containing polymer‐derived ceramic aerogels are characterized belonging to the Si‐C‐O and Si‐C‐N systems, infiltrated with sulfur to work as cathodes for Li‐S batteries. The electrochemical performances are evaluated in relation to the microstructural and chemical features of such materials. In particular, the effect of the pore size of the ceramic matrices on the shuttling behavior of polysulfides is investigated. Despite the high initial specific capacities exceeding hundreds of mAh g⁻¹, all types of cathodes show stable capacities in the 60–120 mAh g⁻¹ range after 100 cycles.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Zambotti, Andrea ; Qu, Fangmu ; Costa, Giacomo ; Graczyk-Zajac, Magdalena ; Sorarù, Gian Domenico |
| Art des Eintrags: | Bibliographie |
| Titel: | Polymer‐derived ceramic aerogels to immobilize sulfur for Li‐S batteries |
| Sprache: | Englisch |
| Publikationsjahr: | Dezember 2023 |
| Ort: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Energy Technology : Generation, Conversion, Storage, Distribution |
| Jahrgang/Volume einer Zeitschrift: | 11 |
| (Heft-)Nummer: | 12 |
| Kollation: | 9 Seiten |
| DOI: | 10.1002/ente.202300488 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Lithium–sulfur batteries are among the promising high‐capacity candidates owing to the superior theoretical capacity of sulfur, when compared with conventional cathodes such as LiCoO₂. However, several issues must be addressed before these batteries can be considered fully operational. Major issues regard the insulating nature of sulfur and the so‐called shuttle effect of soluble polysulfides, which dramatically reduces the cathode capacity upon cycling. Herein, three carbon‐containing polymer‐derived ceramic aerogels are characterized belonging to the Si‐C‐O and Si‐C‐N systems, infiltrated with sulfur to work as cathodes for Li‐S batteries. The electrochemical performances are evaluated in relation to the microstructural and chemical features of such materials. In particular, the effect of the pore size of the ceramic matrices on the shuttling behavior of polysulfides is investigated. Despite the high initial specific capacities exceeding hundreds of mAh g⁻¹, all types of cathodes show stable capacities in the 60–120 mAh g⁻¹ range after 100 cycles. |
| Freie Schlagworte: | aerogels, Li-S batteries, lithium, polymer-derived ceramics, porous ceramics, sulfur |
| ID-Nummer: | Artikel-ID: 2300488 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 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 Disperse Feststoffe |
| Hinterlegungsdatum: | 28 Mai 2024 06:42 |
| Letzte Änderung: | 28 Mai 2024 12:28 |
| PPN: | 518692418 |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Polymer‐Derived Ceramic Aerogels to Immobilize Sulfur for Li‐S Batteries. (deposited 27 Mai 2024 12:57)
- Polymer‐derived ceramic aerogels to immobilize sulfur for Li‐S batteries. (deposited 28 Mai 2024 06:42) [Gegenwärtig angezeigt]
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