Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries

On the search of active electrode materials for Vanadium Redox Flow Batteries (VRFBs) most of previously reported studies were more focused on the modification processes of carbon-based felts than on the assessment of their behaviour towards the redox reactions involved in the proper operation of th...

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Detalles Bibliográficos
Autores: García-Alcalde, Laura, González Arias, Zoraida, Concheso Álvarez, Alejandro, Rodrı́guez, Clara, Santamaría Ramírez, Ricardo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/288709
Acceso en línea:http://hdl.handle.net/10261/288709
https://api.elsevier.com/content/abstract/scopus_id/85144138052
Access Level:acceso abierto
Palabra clave:Active electrode materials
Electrodes configuration
Reliable electrochemical protocol
Felt compression
Vanadium redox processes
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spelling Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow BatteriesGarcía-Alcalde, LauraGonzález Arias, ZoraidaConcheso Álvarez, AlejandroRodrı́guez, ClaraSantamaría Ramírez, RicardoActive electrode materialsElectrodes configurationReliable electrochemical protocolFelt compressionVanadium redox processesOn the search of active electrode materials for Vanadium Redox Flow Batteries (VRFBs) most of previously reported studies were more focused on the modification processes of carbon-based felts than on the assessment of their behaviour towards the redox reactions involved in the proper operation of the device. As a result, a quantitative comparison between those published results is still challenging due to the lack of rigorous information about the electrochemical protocols followed and the different cell geometries/configurations used. In this context, the design of a reliable protocol of electrochemical characterization of the different active electrode materials under evaluation, which should be subsequently agreed by the researchers working on this field, would accelerate the development of these key components of VRFBs. To achieve this goal, this work investigates on the influence of several key experimental parameters, as the felt compression percentage and the electrodes configuration in the electrochemical setup, on the electrochemical results to be obtained when assessing the behaviour of carbon-based felts towards the vanadium redox reactions of interest. The results obtained show a clear influence of both parameters on the electrical contact resistance and on the electrochemical signals recorded by means of cyclic voltammetry and impedance spectroscopy measurements. Consequently, the requirement of providing reliable and consistent electrochemical characterization protocols is highlighted.This research (in the framework of PTI+ TRANSENER, Sustainable Energy Transition) is part of the CSIC program for the Spanish Recovery, Transformation and Resilience Plan funded by the Recovery and Resilience Facility of the European Union, established by the Regulation (EU) 2020/2094. Authors would also thank Principado de Asturias (FICYT, Ayudas a grupos de investigación para actividades de I+D+i 2021-2023, AYUD/2021/50249) for its financial support.Peer reviewedElsevierPrincipado de AsturiasGonzález Arias, Zoraida [0000-0001-8932-3671]Concheso Álvarez, Alejandro [0000-0001-9885-3578]Rodríguez, Clara [0000-0002-0922-1980]Santamaría Ramírez, Ricardo [0000-0001-9818-6998]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/288709https://api.elsevier.com/content/abstract/scopus_id/85144138052reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésElectrochimica Actahttps://doi.org/10.1016/j.electacta.2022.141225Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2887092026-05-22T06:33:51Z
dc.title.none.fl_str_mv Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
title Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
spellingShingle Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
García-Alcalde, Laura
Active electrode materials
Electrodes configuration
Reliable electrochemical protocol
Felt compression
Vanadium redox processes
title_short Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
title_full Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
title_fullStr Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
title_full_unstemmed Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
title_sort Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries
dc.creator.none.fl_str_mv García-Alcalde, Laura
González Arias, Zoraida
Concheso Álvarez, Alejandro
Rodrı́guez, Clara
Santamaría Ramírez, Ricardo
author García-Alcalde, Laura
author_facet García-Alcalde, Laura
González Arias, Zoraida
Concheso Álvarez, Alejandro
Rodrı́guez, Clara
Santamaría Ramírez, Ricardo
author_role author
author2 González Arias, Zoraida
Concheso Álvarez, Alejandro
Rodrı́guez, Clara
Santamaría Ramírez, Ricardo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Principado de Asturias
González Arias, Zoraida [0000-0001-8932-3671]
Concheso Álvarez, Alejandro [0000-0001-9885-3578]
Rodríguez, Clara [0000-0002-0922-1980]
Santamaría Ramírez, Ricardo [0000-0001-9818-6998]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Active electrode materials
Electrodes configuration
Reliable electrochemical protocol
Felt compression
Vanadium redox processes
topic Active electrode materials
Electrodes configuration
Reliable electrochemical protocol
Felt compression
Vanadium redox processes
description On the search of active electrode materials for Vanadium Redox Flow Batteries (VRFBs) most of previously reported studies were more focused on the modification processes of carbon-based felts than on the assessment of their behaviour towards the redox reactions involved in the proper operation of the device. As a result, a quantitative comparison between those published results is still challenging due to the lack of rigorous information about the electrochemical protocols followed and the different cell geometries/configurations used. In this context, the design of a reliable protocol of electrochemical characterization of the different active electrode materials under evaluation, which should be subsequently agreed by the researchers working on this field, would accelerate the development of these key components of VRFBs. To achieve this goal, this work investigates on the influence of several key experimental parameters, as the felt compression percentage and the electrodes configuration in the electrochemical setup, on the electrochemical results to be obtained when assessing the behaviour of carbon-based felts towards the vanadium redox reactions of interest. The results obtained show a clear influence of both parameters on the electrical contact resistance and on the electrochemical signals recorded by means of cyclic voltammetry and impedance spectroscopy measurements. Consequently, the requirement of providing reliable and consistent electrochemical characterization protocols is highlighted.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/288709
https://api.elsevier.com/content/abstract/scopus_id/85144138052
url http://hdl.handle.net/10261/288709
https://api.elsevier.com/content/abstract/scopus_id/85144138052
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Electrochimica Acta
https://doi.org/10.1016/j.electacta.2022.141225
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 15.811543

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