Inorganic Chemistry, volume 57, issue 21, pages 13920-13928

Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution

Publication typeJournal Article
Publication date2018-10-22
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor4.6
ISSN00201669, 1520510X
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
Lithium-ion conducting argyrodites have recently attracted significant interest as solid electrolytes for solid-state battery applications. In order to enhance the utility of materials in this class, a deeper understanding of the fundamental structure-property relationships is still required. Using Rietveld refinements of X-ray diffraction data and pair distribution function analysis of neutron diffraction data, coupled with electrochemical impedance spectroscopy and speed of sound measurements, the structure and transport properties within Li6PS5- xSe xBr (0 ≤ x ≤ 1) have been monitored with increasing Se content. While it has been previously suggested that the incorporation of larger, more polarizable anions within the argyrodite lattice should lead to enhancements in the ionic conductivity, the Li6PS5- xSe xBr transport behavior was found to be largely unaffected by the incorporation of Se2- due to significant structural modifications to the anion sublattice. This work affirms the notion that, when optimizing the ionic conductivity of solid ion conductors, local structural influences cannot be ignored and the idea of "the softer the lattice, the better" does not always hold true.

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GOST Copy
Bernges T. et al. Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution // Inorganic Chemistry. 2018. Vol. 57. No. 21. pp. 13920-13928.
GOST all authors (up to 50) Copy
Bernges T., Culver S. P., Minafra N., Koerver R., Zeier W. G. Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution // Inorganic Chemistry. 2018. Vol. 57. No. 21. pp. 13920-13928.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acs.inorgchem.8b02443
UR - https://doi.org/10.1021/acs.inorgchem.8b02443
TI - Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution
T2 - Inorganic Chemistry
AU - Bernges, Tim
AU - Minafra, Nicoló
AU - Koerver, Raimund
AU - Zeier, Wolfgang G.
AU - Culver, Sean P
PY - 2018
DA - 2018/10/22 00:00:00
PB - American Chemical Society (ACS)
SP - 13920-13928
IS - 21
VL - 57
SN - 0020-1669
SN - 1520-510X
ER -
BibTex |
Cite this
BibTex Copy
@article{2018_Bernges,
author = {Tim Bernges and Nicoló Minafra and Raimund Koerver and Wolfgang G. Zeier and Sean P Culver},
title = {Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution},
journal = {Inorganic Chemistry},
year = {2018},
volume = {57},
publisher = {American Chemical Society (ACS)},
month = {oct},
url = {https://doi.org/10.1021/acs.inorgchem.8b02443},
number = {21},
pages = {13920--13928},
doi = {10.1021/acs.inorgchem.8b02443}
}
MLA
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MLA Copy
Bernges, Tim, et al. “Competing Structural Influences in the Li Superionic Conducting Argyrodites Li6PS5–xSexBr (0 ≤ x ≤ 1) upon Se Substitution.” Inorganic Chemistry, vol. 57, no. 21, Oct. 2018, pp. 13920-13928. https://doi.org/10.1021/acs.inorgchem.8b02443.
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