Fawey, Mohammed Hammad ; Chakravadhanula, Venkata Sai Kiran ; Munnangi, Anji Reddy ; Rongeat, Carine ; Hahn, Horst ; Fichtner, Maximilian ; Kübel, Christian (2020)
First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries.
In: Journal of Power Sources, 466
doi: 10.1016/j.jpowsour.2020.228283
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A focused ion beam (FIB) system is used to fabricate a micron-sized all-solid-state fluoride ion cell from a bulk battery for in situ transmission electron microscopy (TEM) testing. The bulk battery is based on a La0.9Ba0.1F2.9 solid-state electrolyte with a nanocomposite of Cu/C as a cathode and a nanocomposite of MgF2, Mg, La0.9Ba0.1T2.9 and C as an anode. The evolution of the morphology, structure, and composition of the electrodes and their interfaces with the electrolyte is characterized using in-situ TEM during electrochemical cycling. The high-resolution transmission electron microscopy (HRTEM) and scanning transmission electron microscopy-energy dispersive X-ray (STEM-EDX) analysis of the cathode-electrolyte interface reveal the expected formation of CuF2 phase during charging. During cycling, grain growth of Cu in the cathode ingredients and Cu diffusion from the cathode into the electrolyte are observed in addition to void formation.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Fawey, Mohammed Hammad ; Chakravadhanula, Venkata Sai Kiran ; Munnangi, Anji Reddy ; Rongeat, Carine ; Hahn, Horst ; Fichtner, Maximilian ; Kübel, Christian |
| Art des Eintrags: | Bibliographie |
| Titel: | First results from in situ transmission electron microscopy studies of all-solid-state fluoride ion batteries |
| Sprache: | Englisch |
| Publikationsjahr: | 19 Mai 2020 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Power Sources |
| Jahrgang/Volume einer Zeitschrift: | 466 |
| DOI: | 10.1016/j.jpowsour.2020.228283 |
| Kurzbeschreibung (Abstract): | A focused ion beam (FIB) system is used to fabricate a micron-sized all-solid-state fluoride ion cell from a bulk battery for in situ transmission electron microscopy (TEM) testing. The bulk battery is based on a La0.9Ba0.1F2.9 solid-state electrolyte with a nanocomposite of Cu/C as a cathode and a nanocomposite of MgF2, Mg, La0.9Ba0.1T2.9 and C as an anode. The evolution of the morphology, structure, and composition of the electrodes and their interfaces with the electrolyte is characterized using in-situ TEM during electrochemical cycling. The high-resolution transmission electron microscopy (HRTEM) and scanning transmission electron microscopy-energy dispersive X-ray (STEM-EDX) analysis of the cathode-electrolyte interface reveal the expected formation of CuF2 phase during charging. During cycling, grain growth of Cu in the cathode ingredients and Cu diffusion from the cathode into the electrolyte are observed in addition to void formation. |
| ID-Nummer: | Artikel-ID: 228283 |
| 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: | 29 Mai 2020 07:10 |
| Letzte Änderung: | 12 Jun 2024 05:49 |
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