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Practical Implications of Using a Solid Electrolyte in Batteries with Sodium Anode: A Combined X-ray Tomography and Model-based Study

preprint
submitted on 07.02.2019 and posted on 07.02.2019 by Ronja Haas, Constantin Pompe, Markus Osenberg, André Hilger, Ingo Manke, Boris Mogwitz, Urmimala Maitra, Daniel Langsdorf, Daniel Schröder
Herein X-ray tomography of cycled symmetric sodium cells with Na-β-alumina is used to validate the success of a protective layer. X-ray imaging after cell failure reveals that the solid electrolyte unexpectedly broke apart alongside a crack. The crack might have acted as the nucleation site for sodium dendrite growth, which ended in short-circuiting and cell failure.

History

Email Address of Submitting Author

daniel.schroeder@phys.chemie.uni-giessen.de

Institution

Justus Liebig University Giessen

Country

Germany

ORCID For Submitting Author

0000-0002-2198-0218

Declaration of Conflict of Interest

None

Version Notes

Submitted version of manuscript

Exports