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  4. From high- to low-temperature: The revival of sodium-beta alumina for sodium solid-state batteries
 
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2022
Journal Article
Title

From high- to low-temperature: The revival of sodium-beta alumina for sodium solid-state batteries

Abstract
Sodium-based batteries are promising post Li-ion technologies because sodium offers a specific capacity of 1166 mAh g-1 and a potential of -2.71 V vs. the standard hydrogen electrode. Pairing a sodium negative electrode and the solid electrolyte sodium-beta alumina, which exhibits a unique combination of properties, with Na-ion type positive electrodes results in a unique solid-state cell concept. This review highlights opportunities and challenges related to the use of sodium-beta alumina in batteries operating from medium- to low-temperature (200 °C - 20 °C). Firstly, the recent progress in sodium-beta alumina fabrication and doping methods are summarized, followed by a discussion on strategies for modifying the interfaces between sodium-beta alumina and both electrodes. Secondly, recent achievements in designing batteries with sodium-beta alumina are summarized and compared. The review concludes with an outlook on future research directions. Overall, this review shows the promising prospects of using sodium-beta alumina for the development of solid-state batteries.
Author(s)
Fertig, Micha Philip  
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Skadell, Karl  
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Schulz, Matthias  
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Dirksen, Cornelius  orcid-logo
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Adelhelm, Philipp
Humboldt-Universität Berlin / Helmholtz-Zentrum Berlin
Stelter, Michael  
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Journal
Batteries & supercaps  
Project(s)
NASEBER
Funder
Bundesministerium für Bildung und Forschung BMBF (Deutschland)  
Open Access
DOI
10.1002/batt.202100131
Additional full text version
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Language
English
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS  
Keyword(s)
  • doping

  • interfaces

  • Na-ion positive electrodes

  • sodium solid-state batteries

  • sodium-beta alumina

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