Kehne, P. ; Guhl, C. ; Ma, Q. ; Tietz, F. ; Alff, L. ; Hausbrand, R. ; Komissinskiy, P. (2019)
Sc-substituted Nasicon solid electrolyte for an all-solid-state NaxCoO2/Nasicon/Na sodium model battery with stable electrochemical performance.
In: Journal of Power Sources, 409
doi: 10.1016/j.jpowsour.2018.10.089
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
All-solid-state sodium batteries are attractive due to the abundance of sodium and advantageous for safe battery operation by avoiding flammable organics and liquids and suppressed dendrite formation. Currently, the lack of a chemically stable sodium solid electrolyte with high ion conductivity at room temperature is one of the challenges for future development of sodium batteries. Herein, we present a Na CoO2/Nasicon/Na thin-film model sodium solid-state battery using a Sc-substituted Nasicon solid electrolyte with a high ionic conductivity of 4 x 10(-3)S cm(-1). The battery shows a high specific capacity of 150 mAh g(-1) at room-temperature and discharge rates of up to 6C. Excellent chemical stability of this solid electrolyte at high voltages of up to 4.2 V increases the accessible sodium (de)intercalation range and battery capacity. Direct extraction of the interface resistances between the electrode materials of the thin-film model cell using electrochemical impedance spectroscopy gives a unique opportunity of correlation the electrochemical performance with properties of electrode materials and their interfaces.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Kehne, P. ; Guhl, C. ; Ma, Q. ; Tietz, F. ; Alff, L. ; Hausbrand, R. ; Komissinskiy, P. |
| Art des Eintrags: | Bibliographie |
| Titel: | Sc-substituted Nasicon solid electrolyte for an all-solid-state NaxCoO2/Nasicon/Na sodium model battery with stable electrochemical performance |
| Sprache: | Englisch |
| Publikationsjahr: | 1 Januar 2019 |
| Verlag: | ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Power Sources |
| Jahrgang/Volume einer Zeitschrift: | 409 |
| DOI: | 10.1016/j.jpowsour.2018.10.089 |
| URL / URN: | https://doi.org/10.1016/j.jpowsour.2018.10.089 |
| Kurzbeschreibung (Abstract): | All-solid-state sodium batteries are attractive due to the abundance of sodium and advantageous for safe battery operation by avoiding flammable organics and liquids and suppressed dendrite formation. Currently, the lack of a chemically stable sodium solid electrolyte with high ion conductivity at room temperature is one of the challenges for future development of sodium batteries. Herein, we present a Na CoO2/Nasicon/Na thin-film model sodium solid-state battery using a Sc-substituted Nasicon solid electrolyte with a high ionic conductivity of 4 x 10(-3)S cm(-1). The battery shows a high specific capacity of 150 mAh g(-1) at room-temperature and discharge rates of up to 6C. Excellent chemical stability of this solid electrolyte at high voltages of up to 4.2 V increases the accessible sodium (de)intercalation range and battery capacity. Direct extraction of the interface resistances between the electrode materials of the thin-film model cell using electrochemical impedance spectroscopy gives a unique opportunity of correlation the electrochemical performance with properties of electrode materials and their interfaces. |
| Freie Schlagworte: | Room-temperature all-solid-state sodium battery, Nasicon, NaxCoO2, Impedance spectroscopy |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung |
| Hinterlegungsdatum: | 17 Jan 2019 08:53 |
| Letzte Änderung: | 17 Jan 2019 08:53 |
| PPN: | |
| Sponsoren: | This work was funded by the Deutsche Forschungsgemeinschaft within HA 6128/2-1 and KO 4093/2-1. |
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