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Characterising lithium-ion electrolytes via operando Raman microspectroscopy
Knowledge of electrolyte transport and thermodynamic properties in Li-ion and beyond Li-ion technologies is vital for their continued development and success. Here, we present a method for fully characterising electrolyte systems. By measuring the electrolyte concentration gradient over time via ope...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8245635/ https://www.ncbi.nlm.nih.gov/pubmed/34193848 http://dx.doi.org/10.1038/s41467-021-24297-0 |
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author | Fawdon, Jack Ihli, Johannes Mantia, Fabio La Pasta, Mauro |
author_facet | Fawdon, Jack Ihli, Johannes Mantia, Fabio La Pasta, Mauro |
author_sort | Fawdon, Jack |
collection | PubMed |
description | Knowledge of electrolyte transport and thermodynamic properties in Li-ion and beyond Li-ion technologies is vital for their continued development and success. Here, we present a method for fully characterising electrolyte systems. By measuring the electrolyte concentration gradient over time via operando Raman microspectroscopy, in tandem with potentiostatic electrochemical impedance spectroscopy, the Fickian “apparent” diffusion coefficient, transference number, thermodynamic factor, ionic conductivity and resistance of charge-transfer were quantified within a single experimental setup. Using lithium bis(fluorosulfonyl)imide (LiFSI) in tetraglyme (G4) as a model system, our study provides a visualisation of the electrolyte concentration gradient; a method for determining key electrolyte properties, and a necessary technique for correlating bulk intermolecular electrolyte structure with the described transport and thermodynamic properties. |
format | Online Article Text |
id | pubmed-8245635 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-82456352021-07-20 Characterising lithium-ion electrolytes via operando Raman microspectroscopy Fawdon, Jack Ihli, Johannes Mantia, Fabio La Pasta, Mauro Nat Commun Article Knowledge of electrolyte transport and thermodynamic properties in Li-ion and beyond Li-ion technologies is vital for their continued development and success. Here, we present a method for fully characterising electrolyte systems. By measuring the electrolyte concentration gradient over time via operando Raman microspectroscopy, in tandem with potentiostatic electrochemical impedance spectroscopy, the Fickian “apparent” diffusion coefficient, transference number, thermodynamic factor, ionic conductivity and resistance of charge-transfer were quantified within a single experimental setup. Using lithium bis(fluorosulfonyl)imide (LiFSI) in tetraglyme (G4) as a model system, our study provides a visualisation of the electrolyte concentration gradient; a method for determining key electrolyte properties, and a necessary technique for correlating bulk intermolecular electrolyte structure with the described transport and thermodynamic properties. Nature Publishing Group UK 2021-06-30 /pmc/articles/PMC8245635/ /pubmed/34193848 http://dx.doi.org/10.1038/s41467-021-24297-0 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Fawdon, Jack Ihli, Johannes Mantia, Fabio La Pasta, Mauro Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title | Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title_full | Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title_fullStr | Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title_full_unstemmed | Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title_short | Characterising lithium-ion electrolytes via operando Raman microspectroscopy |
title_sort | characterising lithium-ion electrolytes via operando raman microspectroscopy |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8245635/ https://www.ncbi.nlm.nih.gov/pubmed/34193848 http://dx.doi.org/10.1038/s41467-021-24297-0 |
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