Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration

Autores
Cecchetto, Laura; Tesio, Alvaro Yamil; Olivares Marín, Mara; Espinasa, Marc Guardiola; Croce, Fausto; Tonti, Dino
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The reusability, non-volatility and non-corrosiveness of ionic liquids (ILs), as well as their ease of isolation and a large electrochemical stability window, make them an interesting choice as environmentally friendly electrolytes for metal/air batteries. ILs have been described as designer solvents as their properties and behaviour can be adjusted to suit an individual reaction need. In the framework of this study we applied a conceptually similar design approach and showed that a simple parameter such as the concentration of a Li + dopant dramatically affects the reaction yields of Li/O 2 based energy storage devices. We studied the effect of Li + concentration from 0.1 to 1 M in a LiTFSI:PYR 14 TFSI ionic liquid electrolyte on the kinetics of the oxygen reduction reaction (ORR) and on the formation rate of different Li-O species at two different temperatures, finding that the discharge capacity, rates and product distribution change in a non-linear way. At 60 °C, the highest rates and up to one order of magnitude larger capacities were observed at intermediate LiTFSI concentrations, implying a complete mechanism switch from surface to volume phase mediation for Li 2 O 2 precipitation. At room temperature the same evolution was observed, even if in this case the surface mediation remained predominant at all concentrations. These results suggest the possibility to optimise the ionic liquid based Li/O 2 battery performances in terms of discharge capacity and lithium use, by tuning the temperature and alkali cation concentration.
Fil: Cecchetto, Laura. Consejo Superior de Investigaciones Científicas; España
Fil: Tesio, Alvaro Yamil. Consejo Superior de Investigaciones Científicas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Olivares Marín, Mara. Consejo Superior de Investigaciones Científicas; España. Universidad de Extremadura; España
Fil: Espinasa, Marc Guardiola. MATGAS; España
Fil: Croce, Fausto. Università “d'Annunzio” Chieti-Pescara; Italia
Fil: Tonti, Dino. Consejo Superior de Investigaciones Científicas; España
Materia
Ionic Liquid
Lithium Oxygen Battery
Li+ Concentration
Pyr14tfsi
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:11336/74367
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentrationCecchetto, LauraTesio, Alvaro YamilOlivares Marín, MaraEspinasa, Marc GuardiolaCroce, FaustoTonti, DinoIonic LiquidLithium Oxygen BatteryLi+ ConcentrationPyr14tfsihttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The reusability, non-volatility and non-corrosiveness of ionic liquids (ILs), as well as their ease of isolation and a large electrochemical stability window, make them an interesting choice as environmentally friendly electrolytes for metal/air batteries. ILs have been described as designer solvents as their properties and behaviour can be adjusted to suit an individual reaction need. In the framework of this study we applied a conceptually similar design approach and showed that a simple parameter such as the concentration of a Li + dopant dramatically affects the reaction yields of Li/O 2 based energy storage devices. We studied the effect of Li + concentration from 0.1 to 1 M in a LiTFSI:PYR 14 TFSI ionic liquid electrolyte on the kinetics of the oxygen reduction reaction (ORR) and on the formation rate of different Li-O species at two different temperatures, finding that the discharge capacity, rates and product distribution change in a non-linear way. At 60 °C, the highest rates and up to one order of magnitude larger capacities were observed at intermediate LiTFSI concentrations, implying a complete mechanism switch from surface to volume phase mediation for Li 2 O 2 precipitation. At room temperature the same evolution was observed, even if in this case the surface mediation remained predominant at all concentrations. These results suggest the possibility to optimise the ionic liquid based Li/O 2 battery performances in terms of discharge capacity and lithium use, by tuning the temperature and alkali cation concentration.Fil: Cecchetto, Laura. Consejo Superior de Investigaciones Científicas; EspañaFil: Tesio, Alvaro Yamil. Consejo Superior de Investigaciones Científicas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Olivares Marín, Mara. Consejo Superior de Investigaciones Científicas; España. Universidad de Extremadura; EspañaFil: Espinasa, Marc Guardiola. MATGAS; EspañaFil: Croce, Fausto. Università “d'Annunzio” Chieti-Pescara; ItaliaFil: Tonti, Dino. Consejo Superior de Investigaciones Científicas; EspañaRoyal Society of Chemistry2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74367Cecchetto, Laura; Tesio, Alvaro Yamil; Olivares Marín, Mara; Espinasa, Marc Guardiola; Croce, Fausto; et al.; Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration; Royal Society of Chemistry; Sustainable Energy and Fuels; 2; 1; 12-2017; 118-1242398-4902CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C7SE00389Ginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2018/SE/C7SE00389Ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:36Zoai:ri.conicet.gov.ar:11336/74367instacron: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 09:50:36.662CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
title Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
spellingShingle Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
Cecchetto, Laura
Ionic Liquid
Lithium Oxygen Battery
Li+ Concentration
Pyr14tfsi
title_short Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
title_full Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
title_fullStr Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
title_full_unstemmed Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
title_sort Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
dc.creator.none.fl_str_mv Cecchetto, Laura
Tesio, Alvaro Yamil
Olivares Marín, Mara
Espinasa, Marc Guardiola
Croce, Fausto
Tonti, Dino
author Cecchetto, Laura
author_facet Cecchetto, Laura
Tesio, Alvaro Yamil
Olivares Marín, Mara
Espinasa, Marc Guardiola
Croce, Fausto
Tonti, Dino
author_role author
author2 Tesio, Alvaro Yamil
Olivares Marín, Mara
Espinasa, Marc Guardiola
Croce, Fausto
Tonti, Dino
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ionic Liquid
Lithium Oxygen Battery
Li+ Concentration
Pyr14tfsi
topic Ionic Liquid
Lithium Oxygen Battery
Li+ Concentration
Pyr14tfsi
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The reusability, non-volatility and non-corrosiveness of ionic liquids (ILs), as well as their ease of isolation and a large electrochemical stability window, make them an interesting choice as environmentally friendly electrolytes for metal/air batteries. ILs have been described as designer solvents as their properties and behaviour can be adjusted to suit an individual reaction need. In the framework of this study we applied a conceptually similar design approach and showed that a simple parameter such as the concentration of a Li + dopant dramatically affects the reaction yields of Li/O 2 based energy storage devices. We studied the effect of Li + concentration from 0.1 to 1 M in a LiTFSI:PYR 14 TFSI ionic liquid electrolyte on the kinetics of the oxygen reduction reaction (ORR) and on the formation rate of different Li-O species at two different temperatures, finding that the discharge capacity, rates and product distribution change in a non-linear way. At 60 °C, the highest rates and up to one order of magnitude larger capacities were observed at intermediate LiTFSI concentrations, implying a complete mechanism switch from surface to volume phase mediation for Li 2 O 2 precipitation. At room temperature the same evolution was observed, even if in this case the surface mediation remained predominant at all concentrations. These results suggest the possibility to optimise the ionic liquid based Li/O 2 battery performances in terms of discharge capacity and lithium use, by tuning the temperature and alkali cation concentration.
Fil: Cecchetto, Laura. Consejo Superior de Investigaciones Científicas; España
Fil: Tesio, Alvaro Yamil. Consejo Superior de Investigaciones Científicas; España. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Olivares Marín, Mara. Consejo Superior de Investigaciones Científicas; España. Universidad de Extremadura; España
Fil: Espinasa, Marc Guardiola. MATGAS; España
Fil: Croce, Fausto. Università “d'Annunzio” Chieti-Pescara; Italia
Fil: Tonti, Dino. Consejo Superior de Investigaciones Científicas; España
description The reusability, non-volatility and non-corrosiveness of ionic liquids (ILs), as well as their ease of isolation and a large electrochemical stability window, make them an interesting choice as environmentally friendly electrolytes for metal/air batteries. ILs have been described as designer solvents as their properties and behaviour can be adjusted to suit an individual reaction need. In the framework of this study we applied a conceptually similar design approach and showed that a simple parameter such as the concentration of a Li + dopant dramatically affects the reaction yields of Li/O 2 based energy storage devices. We studied the effect of Li + concentration from 0.1 to 1 M in a LiTFSI:PYR 14 TFSI ionic liquid electrolyte on the kinetics of the oxygen reduction reaction (ORR) and on the formation rate of different Li-O species at two different temperatures, finding that the discharge capacity, rates and product distribution change in a non-linear way. At 60 °C, the highest rates and up to one order of magnitude larger capacities were observed at intermediate LiTFSI concentrations, implying a complete mechanism switch from surface to volume phase mediation for Li 2 O 2 precipitation. At room temperature the same evolution was observed, even if in this case the surface mediation remained predominant at all concentrations. These results suggest the possibility to optimise the ionic liquid based Li/O 2 battery performances in terms of discharge capacity and lithium use, by tuning the temperature and alkali cation concentration.
publishDate 2017
dc.date.none.fl_str_mv 2017-12
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/11336/74367
Cecchetto, Laura; Tesio, Alvaro Yamil; Olivares Marín, Mara; Espinasa, Marc Guardiola; Croce, Fausto; et al.; Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration; Royal Society of Chemistry; Sustainable Energy and Fuels; 2; 1; 12-2017; 118-124
2398-4902
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74367
identifier_str_mv Cecchetto, Laura; Tesio, Alvaro Yamil; Olivares Marín, Mara; Espinasa, Marc Guardiola; Croce, Fausto; et al.; Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration; Royal Society of Chemistry; Sustainable Energy and Fuels; 2; 1; 12-2017; 118-124
2398-4902
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/C7SE00389G
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2018/SE/C7SE00389G
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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