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The Impact of Microstructure on Filament Growth at the Sodium Metal Anode in All‐Solid‐State Sodium Batteries

Ding, Ziming ; Tang, Yushu ; Ortmann, Till ; Eckhardt, Janis Kevin ; Dai, Yuting ; Rohnke, Marcus ; Melinte, Georgian ; Heiliger, Christian ; Janek, Jürgen ; Kübel, Christian (2024)
The Impact of Microstructure on Filament Growth at the Sodium Metal Anode in All‐Solid‐State Sodium Batteries.
In: Advanced Energy Materials, 2023, 13 (48)
doi: 10.26083/tuprints-00027222
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Item Type: Article
Type of entry: Secondary publication
Title: The Impact of Microstructure on Filament Growth at the Sodium Metal Anode in All‐Solid‐State Sodium Batteries
Language: English
Date: 27 May 2024
Place of Publication: Darmstadt
Year of primary publication: 22 December 2023
Place of primary publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: Advanced Energy Materials
Volume of the journal: 13
Issue Number: 48
Collation: 14 Seiten
DOI: 10.26083/tuprints-00027222
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

In recent years, all‐solid‐state batteries (ASSBs) with metal anodes have witnessed significant developments due to their high energy and power density as well as their excellent safety record. While intergranular dendritic lithium growth in inorganic solid electrolytes (SEs) has been extensively studied for lithium ASSBs, comparable knowledge is missing for sodium‐based ASSBs. Therefore, polycrystalline Na‐β″‐alumina is employed as a SE model material to investigate the microstructural influence on sodium filament growth during deposition of sodium metal at the anode. The research focuses on the relationship between the microstructure, in particular grain boundary (GB) type and orientation, sodium filament growth, and sodium ion transport, utilizing in situ transmission electron microscopy (TEM) measurements in combination with crystal orientation analysis. The effect of the anisotropic sodium ion transport at/across GBs depending on the orientation of the sodium ion transport planes and the applied electric field on the current distribution and the position of sodium filament growth is explored. The in situ TEM analysis is validated by large field of view post‐mortem secondary ion mass spectrometer (SIMS) analysis, in which sodium filament growth within voids and along grain boundaries is observed, contributing to the sodium network formation potentially leading to failure of batteries.

Uncontrolled Keywords: grain boundaries, microstructure, sodium filament growth, solid electrolytes
Identification Number: Artikel-ID: 2302322
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-272224
Additional Information:

This article also appears in: Post-Lithium Storage – Shaping the Future

Classification DDC: 500 Science and mathematics > 530 Physics
600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 11 Department of Materials and Earth Sciences > Material Science > In-situ electron microscopy
Date Deposited: 27 May 2024 13:13
Last Modified: 16 Sep 2024 08:51
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/27222
PPN: 521517273
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