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Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode

Vanadium redox flow batteries (VRFBs) are appealing large‐scale energy storage systems due to their unique properties of independent energy/power design. The VRFBs stack design is crucial for technology deployment in power applications. Besides the design, the stack suffers from high voltage losses...

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Autores principales: Mousavihashemi, Seyedabolfazl, Murcia‐López, Sebastián, Rodriguez‐Olguin, Miguel A., Gardeniers, Han, Andreu, Teresa, Morante, Juan Ramon, Susarrey Arce, Arturo, Flox, Cristina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100004/
https://www.ncbi.nlm.nih.gov/pubmed/37063813
http://dx.doi.org/10.1002/cctc.202201106
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author Mousavihashemi, Seyedabolfazl
Murcia‐López, Sebastián
Rodriguez‐Olguin, Miguel A.
Gardeniers, Han
Andreu, Teresa
Morante, Juan Ramon
Susarrey Arce, Arturo
Flox, Cristina
author_facet Mousavihashemi, Seyedabolfazl
Murcia‐López, Sebastián
Rodriguez‐Olguin, Miguel A.
Gardeniers, Han
Andreu, Teresa
Morante, Juan Ramon
Susarrey Arce, Arturo
Flox, Cristina
author_sort Mousavihashemi, Seyedabolfazl
collection PubMed
description Vanadium redox flow batteries (VRFBs) are appealing large‐scale energy storage systems due to their unique properties of independent energy/power design. The VRFBs stack design is crucial for technology deployment in power applications. Besides the design, the stack suffers from high voltage losses caused by the electrodes. The introduction of active sites into the electrode to facilitate the reaction kinetic is crucial in boosting the power rate of the VRFBs. Here, an O‐rich layer has been applied onto structured graphite felt (GF) by depositing WO(3) to increase the oxygen species content. The oxygen species are the active site during the positive reaction (VO(2) (+)/VO(2+)) in VRFB. The increased electrocatalytic activity is demonstrated by the monoclinic (m)‐WO(3)/GF electrode that minimizes the voltage losses, yielding excellent performance results in terms of power density output and limiting current density (556 mWcm(−2)@800 mAcm(−2)). The results confirm that the m‐WO(3)/GF electrode is a promising electrode for high‐power in VRFBs, overcoming the performance‐limiting issues in a positive half‐reaction.
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spelling pubmed-101000042023-04-14 Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode Mousavihashemi, Seyedabolfazl Murcia‐López, Sebastián Rodriguez‐Olguin, Miguel A. Gardeniers, Han Andreu, Teresa Morante, Juan Ramon Susarrey Arce, Arturo Flox, Cristina ChemCatChem Research Articles Vanadium redox flow batteries (VRFBs) are appealing large‐scale energy storage systems due to their unique properties of independent energy/power design. The VRFBs stack design is crucial for technology deployment in power applications. Besides the design, the stack suffers from high voltage losses caused by the electrodes. The introduction of active sites into the electrode to facilitate the reaction kinetic is crucial in boosting the power rate of the VRFBs. Here, an O‐rich layer has been applied onto structured graphite felt (GF) by depositing WO(3) to increase the oxygen species content. The oxygen species are the active site during the positive reaction (VO(2) (+)/VO(2+)) in VRFB. The increased electrocatalytic activity is demonstrated by the monoclinic (m)‐WO(3)/GF electrode that minimizes the voltage losses, yielding excellent performance results in terms of power density output and limiting current density (556 mWcm(−2)@800 mAcm(−2)). The results confirm that the m‐WO(3)/GF electrode is a promising electrode for high‐power in VRFBs, overcoming the performance‐limiting issues in a positive half‐reaction. John Wiley and Sons Inc. 2022-11-16 2022-12-07 /pmc/articles/PMC10100004/ /pubmed/37063813 http://dx.doi.org/10.1002/cctc.202201106 Text en © 2022 The Authors. ChemCatChem published by Wiley-VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Mousavihashemi, Seyedabolfazl
Murcia‐López, Sebastián
Rodriguez‐Olguin, Miguel A.
Gardeniers, Han
Andreu, Teresa
Morante, Juan Ramon
Susarrey Arce, Arturo
Flox, Cristina
Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title_full Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title_fullStr Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title_full_unstemmed Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title_short Overcoming Voltage Losses in Vanadium Redox Flow Batteries Using WO(3) as a Positive Electrode
title_sort overcoming voltage losses in vanadium redox flow batteries using wo(3) as a positive electrode
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10100004/
https://www.ncbi.nlm.nih.gov/pubmed/37063813
http://dx.doi.org/10.1002/cctc.202201106
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