Ionic conductivity in complex hydrides for energy storage applications
A comprehensive review
Publication date
2023-08-09
Document type
Rezension in Artikelform
Author
Organisational unit
Publisher
Elsevier
Series or journal
Chemical Engineering Journal
ISSN
Periodical volume
473
Article ID
145315
Part of the university bibliography
✅
Language
English
Keyword
Ionic conductivity
Ion transport mechanism
Complex hydrides
Solid-state electrolyte
Abstract
In recent years, complex hydrides have been extensively studied for energy storage and conversion applications. In particular, the possibility of using this class of materials as solid ionic electrolytes is attracting increasing interest. This review aims at providing a comprehensive overview of ionic conduction in complex hydrides containing various monovalent (Li+, Na+, and K+) and multivalent (Mg2+) ions. Possible approaches to enhance the ionic conductivity of complex hydrides such as ionic substitution, nanoconfinement, interface engineering, and composite formation are highlighted, and the associated conduction mechanisms are discussed. The use of complex hydrides as solid electrolytes for electrochemical conversion and storage applications is then reviewed, including potential applications, challenges, and our perspectives. Finally, the relationship between ionic conduction and hydrogen sorption properties of complex hydrides is briefly discussed.
Version
Published version
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