Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition

Development of secondary zinc-air batteries goes through a proper specification of the electrolyte formulation adapted to extend the cycle life of the battery. However, defining an optimal formulation is not a trivial work due to the specific requirements for each electrode. At half-cell level it ha...

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Autores: Mainar, Aroa R., Iruin, Elena, Colmenares, Luis C., Blázquez Martín, José Alberto, Grande, Hans-Jürgen
Formato: artículo
Fecha de publicación:2018
País:España
Recursos:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/27883
Acesso em linha:http://hdl.handle.net/10810/27883
Access Level:acceso abierto
Palavra-chave:Additive
aqueous alkaline electrolyte
bifunctional air electrode
zinc electrode
zinc–air batteries
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spelling Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte compositionMainar, Aroa R.Iruin, ElenaColmenares, Luis C.Blázquez Martín, José AlbertoGrande, Hans-JürgenAdditiveaqueous alkaline electrolytebifunctional air electrodezinc electrodezinc–air batteriesDevelopment of secondary zinc-air batteries goes through a proper specification of the electrolyte formulation adapted to extend the cycle life of the battery. However, defining an optimal formulation is not a trivial work due to the specific requirements for each electrode. At half-cell level it has been determined that ZnO-saturated 4 M KOH with 2 M KF and 2 M K2CO3 (4s-2) is the most suitable formulation to increase the cycle life of secondary zinc electrode whereas additive-free 8 M KOH (8-0) formulation is more beneficial for the bifunctional air electrode (BAE). Through this systematic cycle life assessment, it has been found that the most suitable electrolyte formulation for the full cell system is a compendium for both electrodes requirements. It has determined an optimal electrolyte formulation for the full system consisting of ZnO-saturated 7 M KOH with 1.4 M KF and 1.4 M K2CO3 (7s-1.4). This electrolyte composition increases at least 2.5 times the reversibility of the secondary zinc-air battery in comparison to that employing the traditional formulation for primary zinc-air batteries (additive free 8 M KOH). In addition, the development of a proper cell design or separator is also necessary to further enhance the secondary zinc-air cycle life.Basque Country Government (ELKARTEK 2016 program); Basque Country University (UPV/EHU) under the program ZABALDUZ2012; European Commission H2020 (project ZAS) (grant/award number: 646186).Society of Chemical Industry and John Wiley & Sons Ltd.201820182018info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/27883reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/646186info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Atribución-NoComercial-SinDerivadas 3.0 EspañaAtribución-NoComercial-SinDerivadas 3.0 Españaoai:addi.ehu.eus:10810/278832026-06-18T09:23:17Z
dc.title.none.fl_str_mv Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
title Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
spellingShingle Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
Mainar, Aroa R.
Additive
aqueous alkaline electrolyte
bifunctional air electrode
zinc electrode
zinc–air batteries
title_short Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
title_full Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
title_fullStr Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
title_full_unstemmed Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
title_sort Systematic cycle life assessment of a secondary zinc–air battery as a function of the alkaline electrolyte composition
dc.creator.none.fl_str_mv Mainar, Aroa R.
Iruin, Elena
Colmenares, Luis C.
Blázquez Martín, José Alberto
Grande, Hans-Jürgen
author Mainar, Aroa R.
author_facet Mainar, Aroa R.
Iruin, Elena
Colmenares, Luis C.
Blázquez Martín, José Alberto
Grande, Hans-Jürgen
author_role author
author2 Iruin, Elena
Colmenares, Luis C.
Blázquez Martín, José Alberto
Grande, Hans-Jürgen
author2_role author
author
author
author
dc.subject.none.fl_str_mv Additive
aqueous alkaline electrolyte
bifunctional air electrode
zinc electrode
zinc–air batteries
topic Additive
aqueous alkaline electrolyte
bifunctional air electrode
zinc electrode
zinc–air batteries
description Development of secondary zinc-air batteries goes through a proper specification of the electrolyte formulation adapted to extend the cycle life of the battery. However, defining an optimal formulation is not a trivial work due to the specific requirements for each electrode. At half-cell level it has been determined that ZnO-saturated 4 M KOH with 2 M KF and 2 M K2CO3 (4s-2) is the most suitable formulation to increase the cycle life of secondary zinc electrode whereas additive-free 8 M KOH (8-0) formulation is more beneficial for the bifunctional air electrode (BAE). Through this systematic cycle life assessment, it has been found that the most suitable electrolyte formulation for the full cell system is a compendium for both electrodes requirements. It has determined an optimal electrolyte formulation for the full system consisting of ZnO-saturated 7 M KOH with 1.4 M KF and 1.4 M K2CO3 (7s-1.4). This electrolyte composition increases at least 2.5 times the reversibility of the secondary zinc-air battery in comparison to that employing the traditional formulation for primary zinc-air batteries (additive free 8 M KOH). In addition, the development of a proper cell design or separator is also necessary to further enhance the secondary zinc-air cycle life.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/27883
url http://hdl.handle.net/10810/27883
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/646186
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
Atribución-NoComercial-SinDerivadas 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Society of Chemical Industry and John Wiley & Sons Ltd.
publisher.none.fl_str_mv Society of Chemical Industry and John Wiley & Sons Ltd.
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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