Effect of mechanical pressure on the ionic conductivity of sodium dodecahydrido-closo-dodecaborate
To optimize the performance of solid-state batteries, - careful control - of the material properties is essential. Solid-state batteries require - significant mechanical pressure during assembly and cycling to ensure - intimate contact and stability of the electrochemical cell. Here we - show that...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) Editorial |
| Sprache: | Englisch |
| Veröffentlicht: |
February 13, 2025
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| In: |
ACS materials letters
Year: 2025, Jahrgang: 7, Heft: 3, Pages: 990-995 |
| ISSN: | 2639-4979 |
| DOI: | 10.1021/acsmaterialslett.4c02153 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1021/acsmaterialslett.4c02153
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| Verfasserangaben: | Lasse R. Kristensen, Gerrit J. Herrmann, Jørgen Skibsted, and Torben R. Jensen |
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| 245 | 1 | 0 | |a Effect of mechanical pressure on the ionic conductivity of sodium dodecahydrido-closo-dodecaborate |c Lasse R. Kristensen, Gerrit J. Herrmann, Jørgen Skibsted, and Torben R. Jensen |
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| 520 | |a To optimize the performance of solid-state batteries, - careful control - of the material properties is essential. Solid-state batteries require - significant mechanical pressure during assembly and cycling to ensure - intimate contact and stability of the electrochemical cell. Here we - show that mechanical pressure can induce a polymorphic transition - (P21/c → Pbca) of sodium dodecahydrido-closo-dodecaborate, - Na2B12H12, which increases both the - boron dynamics and the ionic conductivity. Heating mechanically pressed - samples above 65 °C results in full conversion back to the initial - polymorph (P21/c), along - with a reduction of one order of magnitude in ionic conductivity, - which is consistent with the as-synthesized Na2B12H12. This work emphasizes the important role that postsynthesis - treatment can have on the ionic conductivity, the activation energy, - and the texture of solid electrolytes. | ||
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| 700 | 1 | |a Skibsted, Jørgen |e VerfasserIn |4 aut | |
| 700 | 1 | |a Jensen, Torben R. |e VerfasserIn |4 aut | |
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