Improved synthesis enables assessment of the electrochemical window of monocarborate solid state electrolytes

We synthesized Li and Na monocarborate salts with minimal protic impurities and reassessed their electrochemical windows. Na salts display higher efficiency for metal deposition/stripping and are more oxidatively stable than Li salts. This strong cation effect is rationalized in terms of differences...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-04, Vol.59 (32), p.4746-4749
Main Authors: Tutusaus, Oscar, Kuwata, Hiroko, Counihan, Michael J, Mohtadi, Rana
Format: Article
Language:English
Subjects:
Cations
Charge density
Electrolytes
Molten salt electrolytes
Sodium
Solid electrolytes
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Summary:We synthesized Li and Na monocarborate salts with minimal protic impurities and reassessed their electrochemical windows. Na salts display higher efficiency for metal deposition/stripping and are more oxidatively stable than Li salts. This strong cation effect is rationalized in terms of differences in charge density between Li + and Na + cations. New insights into the electrochemical stability properties of monocarborate solid state electrolytes are enabled through a facile synthetic approach aimed to minimize parasitic side effects of impurities.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc06938e