Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes

Hybrid electrolytes aimed at application in sodium-ion batteries (SIB) consisting of an organic solvent mixture (EC:PC) and different ionic liquids (ILs); EMImTFSI, BMImTFSI, and Pyr13TFSI, and with the NaTFSI salt providing the Naþ charge carriers have here been extensively studied. The physico-che...

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Autores: Monti, Damien, Ponrouch, Alexandre, Palacín, M. Rosa, Johansson, Patrik
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/147982
Acceso en línea:http://hdl.handle.net/10261/147982
Access Level:acceso abierto
Palabra clave:Sodium-ion battery
Ionic liquid
Hybrid electrolytes
Safety
Imidazolium
Pyrrolidinium
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spelling Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytesMonti, DamienPonrouch, AlexandrePalacín, M. RosaJohansson, PatrikSodium-ion batteryIonic liquidHybrid electrolytesSafetyImidazoliumPyrrolidiniumHybrid electrolytes aimed at application in sodium-ion batteries (SIB) consisting of an organic solvent mixture (EC:PC) and different ionic liquids (ILs); EMImTFSI, BMImTFSI, and Pyr13TFSI, and with the NaTFSI salt providing the Naþ charge carriers have here been extensively studied. The physico-chemical and electrochemical characterisation includes ionic conductivity, viscosity, density, cation coordination and solvation, various safety measures, and electrochemical stability window (ESW). Hybrid electrolytes with 10e50% of IL content were found to have ionic conductivities on par with comparable organic solvent based electrolytes, but with highly enhanced safety properties. A systematic Raman spectroscopy study of the cation coordination and solvation before and after electrolyte safety tests by ignition suggest that IL cations and TFSI remain stable when ignited while organic solvents are consumed. Finally, the solid electrolyte interphase (SEI) formed when using hybrid electrolytes has both better mechanical and electrochemical stability than the SEI derived from pure IL based electrolytes. For a half-cell with a hard carbon (HC) electrode and a hybrid electrolyte with a composition of 0.8 m NaTFSI in EC0.45:PC0.45:- Pyr13TFSI0.10 encouraging results were obtained for IL based electrolytes e ca. 182 mAhg1 at C/10 over 40 cycles.We acknowledge the ALISTORE-ERI members for many fruitful discussions and the Swedish Research Council (VR), the Swedish Energy Agency (STEM), the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS) and Ministerio de Ciencia e Innovacion (Spain, grant MAT2014-53500- R) for research funding. DM is grateful for a travel grant to ICMAB from Chalmers Area of Advance Energy. PJ acknowledges the continuous funding from several of Chalmers Areas of Advance: Energy, Materials Science, and Transport.Peer reviewedElsevierSwedish Research CouncilMinisterio de Economía y Competitividad (España)Swedish Research Council for Environment, Agricultural Sciences and Spatial PlanningSwedish Energy AgencyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201720172016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/147982reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-53500-Rhttp://dx.doi.org/10.1016/j.jpowsour.2016.06.003Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1479822026-05-22T06:33:51Z
dc.title.none.fl_str_mv Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
title Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
spellingShingle Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
Monti, Damien
Sodium-ion battery
Ionic liquid
Hybrid electrolytes
Safety
Imidazolium
Pyrrolidinium
title_short Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
title_full Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
title_fullStr Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
title_full_unstemmed Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
title_sort Towards safer sodium-ion batteries via organic solvent/ionic liquid based hybrid electrolytes
dc.creator.none.fl_str_mv Monti, Damien
Ponrouch, Alexandre
Palacín, M. Rosa
Johansson, Patrik
author Monti, Damien
author_facet Monti, Damien
Ponrouch, Alexandre
Palacín, M. Rosa
Johansson, Patrik
author_role author
author2 Ponrouch, Alexandre
Palacín, M. Rosa
Johansson, Patrik
author2_role author
author
author
dc.contributor.none.fl_str_mv Swedish Research Council
Ministerio de Economía y Competitividad (España)
Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning
Swedish Energy Agency
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Sodium-ion battery
Ionic liquid
Hybrid electrolytes
Safety
Imidazolium
Pyrrolidinium
topic Sodium-ion battery
Ionic liquid
Hybrid electrolytes
Safety
Imidazolium
Pyrrolidinium
description Hybrid electrolytes aimed at application in sodium-ion batteries (SIB) consisting of an organic solvent mixture (EC:PC) and different ionic liquids (ILs); EMImTFSI, BMImTFSI, and Pyr13TFSI, and with the NaTFSI salt providing the Naþ charge carriers have here been extensively studied. The physico-chemical and electrochemical characterisation includes ionic conductivity, viscosity, density, cation coordination and solvation, various safety measures, and electrochemical stability window (ESW). Hybrid electrolytes with 10e50% of IL content were found to have ionic conductivities on par with comparable organic solvent based electrolytes, but with highly enhanced safety properties. A systematic Raman spectroscopy study of the cation coordination and solvation before and after electrolyte safety tests by ignition suggest that IL cations and TFSI remain stable when ignited while organic solvents are consumed. Finally, the solid electrolyte interphase (SEI) formed when using hybrid electrolytes has both better mechanical and electrochemical stability than the SEI derived from pure IL based electrolytes. For a half-cell with a hard carbon (HC) electrode and a hybrid electrolyte with a composition of 0.8 m NaTFSI in EC0.45:PC0.45:- Pyr13TFSI0.10 encouraging results were obtained for IL based electrolytes e ca. 182 mAhg1 at C/10 over 40 cycles.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/147982
url http://hdl.handle.net/10261/147982
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-53500-R
http://dx.doi.org/10.1016/j.jpowsour.2016.06.003
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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