Investigating the Li+substructure and ionic transport in Li10GeP2−xSbxS12(0 ≤ x ≤ 0.25)

Bianca Helm; Lara M. Gronych; Ananya Banik; Martin A. Lange; Cheng Li; Wolfgang G. Zeier

doi:10.1039/d2cp04710a

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤ x ≤ 0.25)

Bianca Helm
, Lara M. Gronych
, Ananya Banik
, Martin A. Lange
, Cheng Li
, Wolfgang G. Zeier

Powder Diffraction

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Understanding the correlation between ionic motion and crystal structure is crucial for improving solid electrolyte conductivities. Several substitution series in the Li₁₀GeP₂S₁₂ structure have shown a favorable impact on the ionic conductivity, e.g. the replacement of P(+V) by Sb(+V) in Li₁₀GeP₂S₁₂. However, here the interplay between the structure and ionic motion remains elusive. X-Ray diffraction, high-resolution neutron diffraction, Raman spectroscopy and potentionstatic impedance spectroscopy are employed to explore the impact of Sb(+V) on the Li₁₀GeP₂S₁₂ structure. The introduction of antimony elongates the unit cell in the c-direction and increases the M(1)/P(1) and Li(2) polyhedral volume. Over the solid solution range, the Li⁺ distribution remains similar, an inductive effect seems to be absent and the ionic conductivity is comparable for all compositions. The effect of introducing Sb(+V) in Li₁₀GeP₂S₁₂ cannot be corroborated.

Original language	English
Pages (from-to)	1169-1176
Number of pages	8
Journal	Physical Chemistry Chemical Physics
Volume	25
Issue number	2
DOIs	https://doi.org/10.1039/d2cp04710a
State	Published - Jan 14 2023

Funding

The research was supported by the Deutsche Forschungsgemeinschaft (DFG) under grant number ZE 1010/13-1. A portion of this research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.

Access to Document

10.1039/d2cp04710a

Cite this

@article{124759f4e01b4716946aea213c7d73ef,

title = "Investigating the Li+substructure and ionic transport in Li10GeP2−xSbxS12(0 ≤ x ≤ 0.25)",

abstract = "Understanding the correlation between ionic motion and crystal structure is crucial for improving solid electrolyte conductivities. Several substitution series in the Li10GeP2S12 structure have shown a favorable impact on the ionic conductivity, e.g. the replacement of P(+V) by Sb(+V) in Li10GeP2S12. However, here the interplay between the structure and ionic motion remains elusive. X-Ray diffraction, high-resolution neutron diffraction, Raman spectroscopy and potentionstatic impedance spectroscopy are employed to explore the impact of Sb(+V) on the Li10GeP2S12 structure. The introduction of antimony elongates the unit cell in the c-direction and increases the M(1)/P(1) and Li(2) polyhedral volume. Over the solid solution range, the Li+ distribution remains similar, an inductive effect seems to be absent and the ionic conductivity is comparable for all compositions. The effect of introducing Sb(+V) in Li10GeP2S12 cannot be corroborated.",

author = "Bianca Helm and Gronych, \{Lara M.\} and Ananya Banik and Lange, \{Martin A.\} and Cheng Li and Zeier, \{Wolfgang G.\}",

note = "Publisher Copyright: This journal is {\textcopyright} the Owner Societies, 2023",

year = "2023",

month = jan,

day = "14",

doi = "10.1039/d2cp04710a",

language = "English",

volume = "25",

pages = "1169--1176",

journal = "Physical Chemistry Chemical Physics",

issn = "1463-9076",

publisher = "Royal Society of Chemistry",

number = "2",

}

TY - JOUR

T1 - Investigating the Li+substructure and ionic transport in Li10GeP2−xSbxS12(0 ≤ x ≤ 0.25)

AU - Helm, Bianca

AU - Gronych, Lara M.

AU - Banik, Ananya

AU - Lange, Martin A.

AU - Li, Cheng

AU - Zeier, Wolfgang G.

PY - 2023/1/14

Y1 - 2023/1/14

N2 - Understanding the correlation between ionic motion and crystal structure is crucial for improving solid electrolyte conductivities. Several substitution series in the Li10GeP2S12 structure have shown a favorable impact on the ionic conductivity, e.g. the replacement of P(+V) by Sb(+V) in Li10GeP2S12. However, here the interplay between the structure and ionic motion remains elusive. X-Ray diffraction, high-resolution neutron diffraction, Raman spectroscopy and potentionstatic impedance spectroscopy are employed to explore the impact of Sb(+V) on the Li10GeP2S12 structure. The introduction of antimony elongates the unit cell in the c-direction and increases the M(1)/P(1) and Li(2) polyhedral volume. Over the solid solution range, the Li+ distribution remains similar, an inductive effect seems to be absent and the ionic conductivity is comparable for all compositions. The effect of introducing Sb(+V) in Li10GeP2S12 cannot be corroborated.

AB - Understanding the correlation between ionic motion and crystal structure is crucial for improving solid electrolyte conductivities. Several substitution series in the Li10GeP2S12 structure have shown a favorable impact on the ionic conductivity, e.g. the replacement of P(+V) by Sb(+V) in Li10GeP2S12. However, here the interplay between the structure and ionic motion remains elusive. X-Ray diffraction, high-resolution neutron diffraction, Raman spectroscopy and potentionstatic impedance spectroscopy are employed to explore the impact of Sb(+V) on the Li10GeP2S12 structure. The introduction of antimony elongates the unit cell in the c-direction and increases the M(1)/P(1) and Li(2) polyhedral volume. Over the solid solution range, the Li+ distribution remains similar, an inductive effect seems to be absent and the ionic conductivity is comparable for all compositions. The effect of introducing Sb(+V) in Li10GeP2S12 cannot be corroborated.

UR - https://www.scopus.com/pages/publications/85144182067

U2 - 10.1039/d2cp04710a

DO - 10.1039/d2cp04710a

M3 - Article

C2 - 36519415

AN - SCOPUS:85144182067

SN - 1463-9076

VL - 25

SP - 1169

EP - 1176

JO - Physical Chemistry Chemical Physics

JF - Physical Chemistry Chemical Physics

IS - 2

ER -

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤ x ≤ 0.25)

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this