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Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea

Choline-based deep eutectic solvents (DESs) are potential candidates to replace flammable organic solvent electrolytes in lithium-ion batteries (LIBs). The effect of the addition of a lithium salt on the structure and dynamics of the material needs to be clarified before it enters the battery. Here,...

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Autores principales: de Araujo Lima e Souza, Giselle, Di Pietro, Maria Enrica, Castiglione, Franca, Vanoli, Valeria, Mele, Andrea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9656420/
https://www.ncbi.nlm.nih.gov/pubmed/36363050
http://dx.doi.org/10.3390/ma15217459
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author de Araujo Lima e Souza, Giselle
Di Pietro, Maria Enrica
Castiglione, Franca
Vanoli, Valeria
Mele, Andrea
author_facet de Araujo Lima e Souza, Giselle
Di Pietro, Maria Enrica
Castiglione, Franca
Vanoli, Valeria
Mele, Andrea
author_sort de Araujo Lima e Souza, Giselle
collection PubMed
description Choline-based deep eutectic solvents (DESs) are potential candidates to replace flammable organic solvent electrolytes in lithium-ion batteries (LIBs). The effect of the addition of a lithium salt on the structure and dynamics of the material needs to be clarified before it enters the battery. Here, the archetypical DES choline chloride:urea at 1:2 mole fraction has been added with lithium chloride at two different concentrations and the effect of the additional cation has been evaluated with respect to the non-doped system via multinuclear NMR techniques. (1)H and (7)Li spin-lattice relaxation times and diffusion coefficients have been measured between 298 K and 373 K and revealed a decrease in both rotational and translational mobility of the species after LiCl doping at a given temperature. Temperature dependent (35)Cl linewidths reflect the viscosity increase upon LiCl addition, yet keep track of the lithium complexation. Quantitative indicators such as correlation times and activation energies give indirect insights into the intermolecular interactions of the mixtures, while lithium single-jump distance and transference number shed light into the lithium transport, being then of help in the design of future DES electrolytes.
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spelling pubmed-96564202022-11-15 Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea de Araujo Lima e Souza, Giselle Di Pietro, Maria Enrica Castiglione, Franca Vanoli, Valeria Mele, Andrea Materials (Basel) Article Choline-based deep eutectic solvents (DESs) are potential candidates to replace flammable organic solvent electrolytes in lithium-ion batteries (LIBs). The effect of the addition of a lithium salt on the structure and dynamics of the material needs to be clarified before it enters the battery. Here, the archetypical DES choline chloride:urea at 1:2 mole fraction has been added with lithium chloride at two different concentrations and the effect of the additional cation has been evaluated with respect to the non-doped system via multinuclear NMR techniques. (1)H and (7)Li spin-lattice relaxation times and diffusion coefficients have been measured between 298 K and 373 K and revealed a decrease in both rotational and translational mobility of the species after LiCl doping at a given temperature. Temperature dependent (35)Cl linewidths reflect the viscosity increase upon LiCl addition, yet keep track of the lithium complexation. Quantitative indicators such as correlation times and activation energies give indirect insights into the intermolecular interactions of the mixtures, while lithium single-jump distance and transference number shed light into the lithium transport, being then of help in the design of future DES electrolytes. MDPI 2022-10-24 /pmc/articles/PMC9656420/ /pubmed/36363050 http://dx.doi.org/10.3390/ma15217459 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
de Araujo Lima e Souza, Giselle
Di Pietro, Maria Enrica
Castiglione, Franca
Vanoli, Valeria
Mele, Andrea
Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title_full Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title_fullStr Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title_full_unstemmed Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title_short Insights into the Effect of Lithium Doping on the Deep Eutectic Solvent Choline Chloride:Urea
title_sort insights into the effect of lithium doping on the deep eutectic solvent choline chloride:urea
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9656420/
https://www.ncbi.nlm.nih.gov/pubmed/36363050
http://dx.doi.org/10.3390/ma15217459
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