Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries

Large diameter (&gt; 100 mm) planar Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> solid electrolytes (BASE) with thickness from 1.0 to 1.5 mm have been prepared. Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> was processed as a slurry...

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Main Authors: Samuel Clark Ligon, Marie-Claude Bay, Meike V. F. Heinz, Corsin Battaglia, Thomas Graule, Gurdial Blugan
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/2/433
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spelling doaj-0a85101510a84919b72ababb307911ea2020-11-25T01:45:08ZengMDPI AGMaterials1996-19442020-01-0113243310.3390/ma13020433ma13020433Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-BatteriesSamuel Clark Ligon0Marie-Claude Bay1Meike V. F. Heinz2Corsin Battaglia3Thomas Graule4Gurdial Blugan5Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandMaterials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandMaterials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandMaterials for Energy Conversion, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandLaboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandLaboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Duebendorf, SwitzerlandLarge diameter (&gt; 100 mm) planar Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> solid electrolytes (BASE) with thickness from 1.0 to 1.5 mm have been prepared. Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> was processed as a slurry and cast to give several meters of tape. One hundred and forty mm diameter discs were punched from the tape, stacked, and laminated with a large hydraulic press. Binder burnout and sintering were performed in 150 mm diameter MgO spinel encapsulations to mitigate the loss of Na<sub>2</sub>O vapor. Conductivity and flexural strength were measured on smaller Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> samples produced via the same tape casting process followed by sintering and gave results consistent with BASE materials produced by uniaxial pressing of powders. Planar BASE membranes enable new cell designs, which are predicted to have higher power densities and better stacking efficiency compared to currently manufactured tubular cells.https://www.mdpi.com/1996-1944/13/2/433molten-salt batteriessodium batteriestape castingplanar cellna-β″-al<sub>2</sub>o<sub>3</sub>
collection DOAJ
language English
format Article
sources DOAJ
author Samuel Clark Ligon
Marie-Claude Bay
Meike V. F. Heinz
Corsin Battaglia
Thomas Graule
Gurdial Blugan
spellingShingle Samuel Clark Ligon
Marie-Claude Bay
Meike V. F. Heinz
Corsin Battaglia
Thomas Graule
Gurdial Blugan
Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
Materials
molten-salt batteries
sodium batteries
tape casting
planar cell
na-β″-al<sub>2</sub>o<sub>3</sub>
author_facet Samuel Clark Ligon
Marie-Claude Bay
Meike V. F. Heinz
Corsin Battaglia
Thomas Graule
Gurdial Blugan
author_sort Samuel Clark Ligon
title Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
title_short Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
title_full Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
title_fullStr Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
title_full_unstemmed Large Planar Na-β″-Al<sub>2</sub>O<sub>3</sub> Solid Electrolytes for Next Generation Na-Batteries
title_sort large planar na-β″-al<sub>2</sub>o<sub>3</sub> solid electrolytes for next generation na-batteries
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2020-01-01
description Large diameter (&gt; 100 mm) planar Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> solid electrolytes (BASE) with thickness from 1.0 to 1.5 mm have been prepared. Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> was processed as a slurry and cast to give several meters of tape. One hundred and forty mm diameter discs were punched from the tape, stacked, and laminated with a large hydraulic press. Binder burnout and sintering were performed in 150 mm diameter MgO spinel encapsulations to mitigate the loss of Na<sub>2</sub>O vapor. Conductivity and flexural strength were measured on smaller Na-&#946;&#8243;-Al<sub>2</sub>O<sub>3</sub> samples produced via the same tape casting process followed by sintering and gave results consistent with BASE materials produced by uniaxial pressing of powders. Planar BASE membranes enable new cell designs, which are predicted to have higher power densities and better stacking efficiency compared to currently manufactured tubular cells.
topic molten-salt batteries
sodium batteries
tape casting
planar cell
na-β″-al<sub>2</sub>o<sub>3</sub>
url https://www.mdpi.com/1996-1944/13/2/433
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