Ortmann, Till ; Fuchs, Till ; Eckhardt, Janis K. ; Ding, Ziming ; Ma, Qianli ; Tietz, Frank ; Kübel, Christian ; Rohnke, Marcus ; Janek, Jürgen (2024)
Deposition of sodium metal at the copper‐NaSICON interface for reservoir‐free solid‐state sodium batteries.
In: Advanced Energy Materials, 14 (15)
doi: 10.1002/aenm.202302729
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
"Anode-free" solid-state battery concepts are explored extensively as they promise a higher energy density with less material consumption and simple anode processing. Here, the homogeneous and uniform electrochemical deposition of alkali metal at the interface between current collector and solid electrolyte plays the central role to form a metal anode within the first cycle. While the cathodic deposition of lithium has been studied intensively, knowledge on sodium deposition is scarce. In this work, dense and uniform sodium layers of several microns thickness are deposited at the Cu|Na3.4Zr2Si2.4P0.6O12 interface with high reproducibility. At current densities of approximate to 1 mA center dot cm-2, relatively uniform coverage is achieved underneath the current collector, as shown by electrochemical impedance spectroscopy and 3D confocal microscopy. In contrast, only slight variations of the coverage are observed at different stack pressures. Early stages of the sodium metal growth are analyzed by in situ transmission electron microscopy revealing oriented growth of sodium. The results demonstrate that reservoir-free ("anode-free") sodium-based batteries are feasible and may stimulate further research efforts in sodium-based solid-state batteries.
The cathodic deposition of sodium at the Cu|Na3.4Zr2Si2.4P0.6O12 interface aiming for "reservoir-free" sodium solid-state batteries is studied systematically. Dense and roughly 10 mu m thick sodium layers are formed underneath the copper current collector. By increasing the current density j during deposition, a higher coverage is obtained, while the stack pressure has only a minor influence on the coverage.image
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Ortmann, Till ; Fuchs, Till ; Eckhardt, Janis K. ; Ding, Ziming ; Ma, Qianli ; Tietz, Frank ; Kübel, Christian ; Rohnke, Marcus ; Janek, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Deposition of sodium metal at the copper‐NaSICON interface for reservoir‐free solid‐state sodium batteries |
| Sprache: | Englisch |
| Publikationsjahr: | April 2024 |
| Verlag: | Wiley-VCH |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Advanced Energy Materials |
| Jahrgang/Volume einer Zeitschrift: | 14 |
| (Heft-)Nummer: | 15 |
| DOI: | 10.1002/aenm.202302729 |
| Kurzbeschreibung (Abstract): | "Anode-free" solid-state battery concepts are explored extensively as they promise a higher energy density with less material consumption and simple anode processing. Here, the homogeneous and uniform electrochemical deposition of alkali metal at the interface between current collector and solid electrolyte plays the central role to form a metal anode within the first cycle. While the cathodic deposition of lithium has been studied intensively, knowledge on sodium deposition is scarce. In this work, dense and uniform sodium layers of several microns thickness are deposited at the Cu|Na3.4Zr2Si2.4P0.6O12 interface with high reproducibility. At current densities of approximate to 1 mA center dot cm-2, relatively uniform coverage is achieved underneath the current collector, as shown by electrochemical impedance spectroscopy and 3D confocal microscopy. In contrast, only slight variations of the coverage are observed at different stack pressures. Early stages of the sodium metal growth are analyzed by in situ transmission electron microscopy revealing oriented growth of sodium. The results demonstrate that reservoir-free ("anode-free") sodium-based batteries are feasible and may stimulate further research efforts in sodium-based solid-state batteries. The cathodic deposition of sodium at the Cu|Na3.4Zr2Si2.4P0.6O12 interface aiming for "reservoir-free" sodium solid-state batteries is studied systematically. Dense and roughly 10 mu m thick sodium layers are formed underneath the copper current collector. By increasing the current density j during deposition, a higher coverage is obtained, while the stack pressure has only a minor influence on the coverage.image |
| Freie Schlagworte: | anode-free-cell, impedance spectroscopy, in situ electron microscopy, sodium deposition |
| ID-Nummer: | Artikel-ID: 2302729 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > In-Situ Elektronenmikroskopie |
| Hinterlegungsdatum: | 12 Jun 2024 09:35 |
| Letzte Änderung: | 17 Jun 2024 08:44 |
| PPN: | 519184513 |
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