Structure–transport correlations in Na11Sn2SbSe12 and its sulfide solid solutions
dc.contributor.author | Ramos, Erika P. | |
dc.contributor.author | Assoud, Abdelijalil | |
dc.contributor.author | Laidong, Zhou | |
dc.contributor.author | Shyamsunder, Abhinandan | |
dc.contributor.author | Rettenwander, Daniel | |
dc.contributor.author | Nazar, Linda F. | |
dc.date.accessioned | 2023-09-13T12:39:39Z | |
dc.date.available | 2023-09-13T12:39:39Z | |
dc.date.created | 2023-01-26T21:41:45Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | APL Materials. 2023, | en_US |
dc.identifier.issn | 2166-532X | |
dc.identifier.uri | https://hdl.handle.net/11250/3089169 | |
dc.description.abstract | We report a new ion conductor—Na11Sn2SbSe12—as a possible candidate for a solid catholyte in composite cathodes for all-solid state Na-batteries, which exhibits a room temperature ionic conductivity of 0.15 ± 0.03 mS cm−1 and an activation energy of 0.39 ± 0.02 eV. The sulfide solid solutions of Na11Sn2SbSe12, namely, Na11Sn2SbS12−xSex (x = 1 and 6), were also investigated through a combination of Rietveld refinement against powder x-ray diffraction data and electrochemical impedance spectroscopy to reveal the complex structure–property relationships governing ion transport in this class of materials. Meanwhile, broadening of the Na-ion diffusion pathways in Na11Sn2SbSe12 is expected to facilitate Na-ion transport compared to the sulfide-rich member of the solid solution, the opposite holds: increasing the Se fraction in Na11Sn2SbS12−xSex leads to a little change in the activation energy but a reduction in the ionic conductivity. We ascribe this to the lowering of the prefactor, σ0, in the Arrhenius relationship with increasing lattice “softening” as a function of higher Se content. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | AIP Publishing | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Structure–transport correlations in Na11Sn2SbSe12 and its sulfide solid solutions | en_US |
dc.title.alternative | Structure–transport correlations in Na11Sn2SbSe12 and its sulfide solid solutions | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 011104 | en_US |
dc.source.volume | 11 | en_US |
dc.source.journal | APL Materials | en_US |
dc.identifier.doi | 10.1063/5.0129001 | |
dc.identifier.cristin | 2116087 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 |
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Institutt for materialteknologi [2540]
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