Stannaborates: tuning the ion conductivity of dodecaborate salts with tin substitution
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Authors
Hales, T.A.
Møller, K.T.
Humphries, Terry
D’Angelo, A.M.
Buckley, Craig
Paskevicius, Mark
Date
2023Type
Journal Article
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Hales, T.A. and Møller, K.T. and Humphries, T.D. and D’Angelo, A.M. and Buckley, C.E. and Paskevicius, M. 2023. Stannaborates: tuning the ion conductivity of dodecaborate salts with tin substitution. Physical Chemistry Chemical Physics. 25 (45): pp. 31249-31256.
Source Title
Physical Chemistry Chemical Physics
ISSN
Faculty
Faculty of Science and Engineering
Faculty of Science and Engineering
Faculty of Science and Engineering
School
School of Elec Eng, Comp and Math Sci (EECMS)
School of Elec Eng, Comp and Math Sci (EECMS)
School of Elec Eng, Comp and Math Sci (EECMS)
Collection
Abstract
Metal substituted dodecaborate anions can be coupled with alkali metal cations to have great potential as solid-state ion conductors for battery applications. A tin atom can replace a B-H unit within an unsubstituted dodecaborate cage to produce a stable, polar divalent anion. The chemical and structural change in forming a stannaborate results in a modified crystal structure of respective group 1 metal salts, and as a result, improves the material's ion conductivity. Li2B11H11Sn shows high ion conductivity of ∼8 mS cm−1 at 130 °C, similar to the state-of-the-art LiCB11H12 at these temperatures, however, obtaining high ion conductivity at room temperature is not possible with pristine alkali metal stannaborates.