Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes

Autores
Brinkkötter, M.; Gouverneur, M.; Sebastião, P. J.; Vaca Chávez Fornasero, Fabián; Schönhoff, M.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two ternary polymer gel electrolyte systems are compared, containing either polyethylene oxide (PEO) or the poly-ionic liquid poly(diallyldimethylammonium) bis(trifluoromethyl sulfonyl)imide (PDADMA-TFSI). Both gel types are based on the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl sulfonyl)imide (P14TFSI) and LiTFSI. We study the influence of the polymers on the local lithium ion dynamics at different polymer concentrations using 7Li spin-lattice relaxation data in dependence on frequency and temperature. In all cases the relaxation rates are well described by the Cole-Davidson motional model with Arrhenius dependence of the correlation time and a temperature dependent quadrupole coupling constant. For both polymers the correlation times are found to increase with polymer concentration. The activation energy of local motions slightly increases with increasing PEO concentration, and slightly decreases with increasing PDADMA-TFSI concentration. Thus the local Li+ motion is reduced by the presence of either polymer; however, the reduction is less effective in the PDADMA+ samples. We thus conclude that mechanical stabilization of a liquid electrolyte by a polymer can be achieved at a lower decrease of Li+ motion when a cationic polymer is used instead of PEO.
Fil: Brinkkötter, M.. University of Muenster; Alemania
Fil: Gouverneur, M.. University of Muenster; Alemania
Fil: Sebastião, P. J.. Universidade de Lisboa; Portugal
Fil: Vaca Chávez Fornasero, Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Schönhoff, M.. University of Muenster; Alemania
Materia
Nmr
Electrolytes
Battery
Lithium
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63819
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63819
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytesBrinkkötter, M.Gouverneur, M.Sebastião, P. J.Vaca Chávez Fornasero, FabiánSchönhoff, M.NmrElectrolytesBatteryLithiumhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Two ternary polymer gel electrolyte systems are compared, containing either polyethylene oxide (PEO) or the poly-ionic liquid poly(diallyldimethylammonium) bis(trifluoromethyl sulfonyl)imide (PDADMA-TFSI). Both gel types are based on the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl sulfonyl)imide (P14TFSI) and LiTFSI. We study the influence of the polymers on the local lithium ion dynamics at different polymer concentrations using 7Li spin-lattice relaxation data in dependence on frequency and temperature. In all cases the relaxation rates are well described by the Cole-Davidson motional model with Arrhenius dependence of the correlation time and a temperature dependent quadrupole coupling constant. For both polymers the correlation times are found to increase with polymer concentration. The activation energy of local motions slightly increases with increasing PEO concentration, and slightly decreases with increasing PDADMA-TFSI concentration. Thus the local Li+ motion is reduced by the presence of either polymer; however, the reduction is less effective in the PDADMA+ samples. We thus conclude that mechanical stabilization of a liquid electrolyte by a polymer can be achieved at a lower decrease of Li+ motion when a cationic polymer is used instead of PEO.Fil: Brinkkötter, M.. University of Muenster; AlemaniaFil: Gouverneur, M.. University of Muenster; AlemaniaFil: Sebastião, P. J.. Universidade de Lisboa; PortugalFil: Vaca Chávez Fornasero, Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Schönhoff, M.. University of Muenster; AlemaniaRoyal Society of Chemistry2017-02-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63819Brinkkötter, M.; Gouverneur, M.; Sebastião, P. J.; Vaca Chávez Fornasero, Fabián; Schönhoff, M.; Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 10; 15-2-2017; 7390-73981463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C6CP08756Finfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2017/CP/C6CP08756F#!divAbstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:12Zoai:ri.conicet.gov.ar:11336/63819instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:39:12.972CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
title Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
spellingShingle Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
Brinkkötter, M.
Nmr
Electrolytes
Battery
Lithium
title_short Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
title_full Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
title_fullStr Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
title_full_unstemmed Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
title_sort Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes
dc.creator.none.fl_str_mv Brinkkötter, M.
Gouverneur, M.
Sebastião, P. J.
Vaca Chávez Fornasero, Fabián
Schönhoff, M.
author Brinkkötter, M.
author_facet Brinkkötter, M.
Gouverneur, M.
Sebastião, P. J.
Vaca Chávez Fornasero, Fabián
Schönhoff, M.
author_role author
author2 Gouverneur, M.
Sebastião, P. J.
Vaca Chávez Fornasero, Fabián
Schönhoff, M.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Nmr
Electrolytes
Battery
Lithium
topic Nmr
Electrolytes
Battery
Lithium
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Two ternary polymer gel electrolyte systems are compared, containing either polyethylene oxide (PEO) or the poly-ionic liquid poly(diallyldimethylammonium) bis(trifluoromethyl sulfonyl)imide (PDADMA-TFSI). Both gel types are based on the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl sulfonyl)imide (P14TFSI) and LiTFSI. We study the influence of the polymers on the local lithium ion dynamics at different polymer concentrations using 7Li spin-lattice relaxation data in dependence on frequency and temperature. In all cases the relaxation rates are well described by the Cole-Davidson motional model with Arrhenius dependence of the correlation time and a temperature dependent quadrupole coupling constant. For both polymers the correlation times are found to increase with polymer concentration. The activation energy of local motions slightly increases with increasing PEO concentration, and slightly decreases with increasing PDADMA-TFSI concentration. Thus the local Li+ motion is reduced by the presence of either polymer; however, the reduction is less effective in the PDADMA+ samples. We thus conclude that mechanical stabilization of a liquid electrolyte by a polymer can be achieved at a lower decrease of Li+ motion when a cationic polymer is used instead of PEO.
Fil: Brinkkötter, M.. University of Muenster; Alemania
Fil: Gouverneur, M.. University of Muenster; Alemania
Fil: Sebastião, P. J.. Universidade de Lisboa; Portugal
Fil: Vaca Chávez Fornasero, Fabián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Schönhoff, M.. University of Muenster; Alemania
description Two ternary polymer gel electrolyte systems are compared, containing either polyethylene oxide (PEO) or the poly-ionic liquid poly(diallyldimethylammonium) bis(trifluoromethyl sulfonyl)imide (PDADMA-TFSI). Both gel types are based on the ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethyl sulfonyl)imide (P14TFSI) and LiTFSI. We study the influence of the polymers on the local lithium ion dynamics at different polymer concentrations using 7Li spin-lattice relaxation data in dependence on frequency and temperature. In all cases the relaxation rates are well described by the Cole-Davidson motional model with Arrhenius dependence of the correlation time and a temperature dependent quadrupole coupling constant. For both polymers the correlation times are found to increase with polymer concentration. The activation energy of local motions slightly increases with increasing PEO concentration, and slightly decreases with increasing PDADMA-TFSI concentration. Thus the local Li+ motion is reduced by the presence of either polymer; however, the reduction is less effective in the PDADMA+ samples. We thus conclude that mechanical stabilization of a liquid electrolyte by a polymer can be achieved at a lower decrease of Li+ motion when a cationic polymer is used instead of PEO.
publishDate 2017
dc.date.none.fl_str_mv 2017-02-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/63819
Brinkkötter, M.; Gouverneur, M.; Sebastião, P. J.; Vaca Chávez Fornasero, Fabián; Schönhoff, M.; Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 10; 15-2-2017; 7390-7398
1463-9076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63819
identifier_str_mv Brinkkötter, M.; Gouverneur, M.; Sebastião, P. J.; Vaca Chávez Fornasero, Fabián; Schönhoff, M.; Spin relaxation studies of Li+ ion dynamics in polymer gel electrolytes; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 10; 15-2-2017; 7390-7398
1463-9076
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C6CP08756F
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2017/CP/C6CP08756F#!divAbstract
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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