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 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.
Main Authors: | , , , , |
---|---|
Other Authors: | |
Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2022-11-10
|
Subjects: | Active electrode materials, Electrodes configuration, Reliable electrochemical protocol, Felt compression, Vanadium redox processes, |
Online Access: | http://hdl.handle.net/10261/288709 https://api.elsevier.com/content/abstract/scopus_id/85144138052 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-incar-es-10261-288709 |
---|---|
record_format |
koha |
spelling |
dig-incar-es-10261-2887092023-02-09T08:29:33Z Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries García Alcalde, Laura González Arias, Zoraida Concheso Álvarez, Alejandro Rodrı́guez, Clara Santamaría Ramírez, Ricardo 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] Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes 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. 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 reviewed 2023-02-09T08:29:33Z 2023-02-09T08:29:33Z 2022-11-10 artículo Electrochimica Acta 432: 141225 (2022) 0013-4686 http://hdl.handle.net/10261/288709 10.1016/j.electacta.2022.141225 2-s2.0-85144138052 https://api.elsevier.com/content/abstract/scopus_id/85144138052 en Electrochimica Acta Publisher's version https://doi.org/10.1016/j.electacta.2022.141225 Sí open Elsevier |
institution |
INCAR ES |
collection |
DSpace |
country |
España |
countrycode |
ES |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-incar-es |
tag |
biblioteca |
region |
Europa del Sur |
libraryname |
Biblioteca del INCAR España |
language |
English |
topic |
Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes |
spellingShingle |
Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes García Alcalde, Laura González Arias, Zoraida Concheso Álvarez, Alejandro Rodrı́guez, Clara Santamaría Ramírez, Ricardo Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries |
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. |
author2 |
Principado de Asturias |
author_facet |
Principado de Asturias García Alcalde, Laura González Arias, Zoraida Concheso Álvarez, Alejandro Rodrı́guez, Clara Santamaría Ramírez, Ricardo |
format |
artículo |
topic_facet |
Active electrode materials Electrodes configuration Reliable electrochemical protocol Felt compression Vanadium redox processes |
author |
García Alcalde, Laura González Arias, Zoraida Concheso Álvarez, Alejandro Rodrı́guez, Clara Santamaría Ramírez, Ricardo |
author_sort |
García Alcalde, Laura |
title |
Impact of electrochemical cells configuration on a reliable assessment of active electrode materials for Vanadium Redox Flow Batteries |
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 |
publisher |
Elsevier |
publishDate |
2022-11-10 |
url |
http://hdl.handle.net/10261/288709 https://api.elsevier.com/content/abstract/scopus_id/85144138052 |
work_keys_str_mv |
AT garciaalcaldelaura impactofelectrochemicalcellsconfigurationonareliableassessmentofactiveelectrodematerialsforvanadiumredoxflowbatteries AT gonzalezariaszoraida impactofelectrochemicalcellsconfigurationonareliableassessmentofactiveelectrodematerialsforvanadiumredoxflowbatteries AT conchesoalvarezalejandro impactofelectrochemicalcellsconfigurationonareliableassessmentofactiveelectrodematerialsforvanadiumredoxflowbatteries AT rodrıguezclara impactofelectrochemicalcellsconfigurationonareliableassessmentofactiveelectrodematerialsforvanadiumredoxflowbatteries AT santamariaramirezricardo impactofelectrochemicalcellsconfigurationonareliableassessmentofactiveelectrodematerialsforvanadiumredoxflowbatteries |
_version_ |
1777669098870669312 |