Deckenbach, Daniel ; Schneider, Jörg J. (2024)
Toward a metal anode‐free zinc‐air battery for next‐generation energy storage.
In: Small : nano micro, 20 (22)
doi: 10.1002/smll.202311065
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
Rechargeable aqueous zinc‐air batteries (ZABs) promise high energy density and safety. However, the use of conventional zinc anodes affects the energy output from the battery, so that the theoretical energy density is not achievable under operation conditions. A large portion of the zinc is shielded by anode passivation during the discharge process and remains electrochemically unused, making the operation of rechargeable ZABs inefficient up to date. In a metal anode‐free ZAB, there is no unnecessary excess zinc if the zinc reservoir can be precisely adjusted by electrodeposition of zinc from the electrolyte. In this respect, an anode‐free battery uses the electrolyte offering a dual‐mode functionality not only providing ionic conductivity but also being the source of zinc. In addition, it is shown that a defined porous anode architecture is crucial for high rechargeability in this new type of ZAB. 3D‐spatially arranged carbon nanotubes as geometrically defined host structures allow a homogeneous zinc deposition from the electrolyte. Together with carbon nanohorns as an active 2e⁻ catalyst on the cathode side, the rechargeability of this new concept reaches up to 92%.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Deckenbach, Daniel ; Schneider, Jörg J. |
| Art des Eintrags: | Bibliographie |
| Titel: | Toward a metal anode‐free zinc‐air battery for next‐generation energy storage |
| Sprache: | Englisch |
| Publikationsjahr: | 29 Mai 2024 |
| Ort: | Weinheim |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Small : nano micro |
| Jahrgang/Volume einer Zeitschrift: | 20 |
| (Heft-)Nummer: | 22 |
| Kollation: | 12 Seiten |
| DOI: | 10.1002/smll.202311065 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Rechargeable aqueous zinc‐air batteries (ZABs) promise high energy density and safety. However, the use of conventional zinc anodes affects the energy output from the battery, so that the theoretical energy density is not achievable under operation conditions. A large portion of the zinc is shielded by anode passivation during the discharge process and remains electrochemically unused, making the operation of rechargeable ZABs inefficient up to date. In a metal anode‐free ZAB, there is no unnecessary excess zinc if the zinc reservoir can be precisely adjusted by electrodeposition of zinc from the electrolyte. In this respect, an anode‐free battery uses the electrolyte offering a dual‐mode functionality not only providing ionic conductivity but also being the source of zinc. In addition, it is shown that a defined porous anode architecture is crucial for high rechargeability in this new type of ZAB. 3D‐spatially arranged carbon nanotubes as geometrically defined host structures allow a homogeneous zinc deposition from the electrolyte. Together with carbon nanohorns as an active 2e⁻ catalyst on the cathode side, the rechargeability of this new concept reaches up to 92%. |
| Freie Schlagworte: | anode‐free, carbon, nanotubes, zinc, zinc‐air batteries |
| ID-Nummer: | Artikel-ID: 2311065 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut > Fachgebiet Anorganische Chemie 07 Fachbereich Chemie > Eduard Zintl-Institut |
| Hinterlegungsdatum: | 17 Sep 2024 06:23 |
| Letzte Änderung: | 17 Sep 2024 07:00 |
| PPN: | 52154596X |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
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Toward a Metal Anode‐Free Zinc‐Air Battery for Next‐Generation Energy Storage. (deposited 16 Sep 2024 11:35)
- Toward a metal anode‐free zinc‐air battery for next‐generation energy storage. (deposited 17 Sep 2024 06:23) [Gegenwärtig angezeigt]
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