Show simple item record Cecchetto, Laura Tesio, Alvaro Yamil Olivares Marín, Mara Espinasa, Marc Guardiola Croce, Fausto Tonti, Dino 2019-04-15T14:33:04Z 2017-12
dc.identifier.citation 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
dc.identifier.issn 2398-4902
dc.description.abstract 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.
dc.format application/pdf
dc.language.iso eng
dc.publisher Royal Society of Chemistry
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject IONIC LIQUID
dc.subject PYR14TFSI
dc.subject.classification Otras Ciencias Químicas
dc.subject.classification Ciencias Químicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Tailoring oxygen redox reactions in ionic liquid based Li/O 2 batteries by means of the Li + dopant concentration
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2019-04-12T17:14:19Z
dc.journal.volume 2
dc.journal.number 1
dc.journal.pagination 118-124
dc.journal.pais Reino Unido
dc.journal.ciudad Cambridge
dc.description.fil Fil: Cecchetto, Laura. Consejo Superior de Investigaciones Científicas; España
dc.description.fil 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
dc.description.fil Fil: Olivares Marín, Mara. Consejo Superior de Investigaciones Científicas; España. Universidad de Extremadura; España
dc.description.fil Fil: Espinasa, Marc Guardiola. MATGAS; España
dc.description.fil Fil: Croce, Fausto. Università “d'Annunzio” Chieti-Pescara; Italia
dc.description.fil Fil: Tonti, Dino. Consejo Superior de Investigaciones Científicas; España
dc.journal.title Sustainable Energy and Fuels
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.conicet.fuente individual

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)