Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor

We report a gel polymer electrolyte (GPE) supercapacitor concept with improved pathways for ion transport, thanks to a facile creation of a coherent continuous distribution of the electrolyte throughout the electrode. Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) was chosen as the poly...

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Autores: Zhu, Jun-Jie|||0000-0002-8024-099X, Martinez-Soria, Luis, Gómez-Romero, Pedro|||0000-0002-6208-5340
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:256038
Acceso en línea:https://ddd.uab.cat/record/256038
https://dx.doi.org/urn:doi:10.3390/nano12030514
Access Level:acceso abierto
Palabra clave:Gel polymer electrolytes
Polyoxometalates
Supercapacitors
Hybrid electrodes
Organic electrolytes
Impedance spectroscopy
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spelling Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitorZhu, Jun-Jie|||0000-0002-8024-099XMartinez-Soria, LuisGómez-Romero, Pedro|||0000-0002-6208-5340Gel polymer electrolytesPolyoxometalatesSupercapacitorsHybrid electrodesOrganic electrolytesImpedance spectroscopyWe report a gel polymer electrolyte (GPE) supercapacitor concept with improved pathways for ion transport, thanks to a facile creation of a coherent continuous distribution of the electrolyte throughout the electrode. Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) was chosen as the polymer framework for organic electrolytes. A permeating distribution of the GPE into the electrodes, acting both as integrated electrolyte and binder, as well as thin separator, promotes ion diffusion and increases the active electrode-electrolyte interface, which leads to improvements both in capacitance and rate capability. An activation process induced during the first charge-discharge cycles was detected, after which, the charge transfer resistance and Warburg impedance decrease. We found that a GPE thickness of 12 μm led to optimal capacitance and rate capability. A novel hybrid nanocomposite material, formed by the tetraethylammonium salt of the 1 nm-sized phosphomolybdate cluster and activated carbon (AC/TEAPMo12), was shown to improve its capacitive performance with this gel electrolyte arrangement. Due to the homogeneous dispersion of PMo12 clusters, its energy storage process is non-diffusion-controlled. In the symmetric capacitors, the hybrid nanocomposite material can perform redox reactions in both the positive and the negative electrodes in an ambipolar mode. The volumetric capacitance of a symmetric supercapacitor made with the hybrid electrodes increased by 40% compared to a cell with parent AC electrodes. Due to the synergy between permeating GPE and the hybrid electrodes, the GPE hybrid symmetric capacitor delivers three times more energy density at higher power densities and equivalent cycle stability compared with conventional AC symmetric capacitors. 22022-01-0120222022-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/256038https://dx.doi.org/urn:doi:10.3390/nano12030514reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 SEV-2017-0706Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 RTI2018-099826-B-I00open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2560382026-06-06T12:50:31Z
dc.title.none.fl_str_mv Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
title Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
spellingShingle Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
Zhu, Jun-Jie|||0000-0002-8024-099X
Gel polymer electrolytes
Polyoxometalates
Supercapacitors
Hybrid electrodes
Organic electrolytes
Impedance spectroscopy
title_short Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
title_full Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
title_fullStr Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
title_full_unstemmed Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
title_sort Coherent integration of organic gel polymer electrolyte and ambipolar polyoxometalate hybrid nanocomposite electrode in a compact high-performance supercapacitor
dc.creator.none.fl_str_mv Zhu, Jun-Jie|||0000-0002-8024-099X
Martinez-Soria, Luis
Gómez-Romero, Pedro|||0000-0002-6208-5340
author Zhu, Jun-Jie|||0000-0002-8024-099X
author_facet Zhu, Jun-Jie|||0000-0002-8024-099X
Martinez-Soria, Luis
Gómez-Romero, Pedro|||0000-0002-6208-5340
author_role author
author2 Martinez-Soria, Luis
Gómez-Romero, Pedro|||0000-0002-6208-5340
author2_role author
author
dc.subject.none.fl_str_mv Gel polymer electrolytes
Polyoxometalates
Supercapacitors
Hybrid electrodes
Organic electrolytes
Impedance spectroscopy
topic Gel polymer electrolytes
Polyoxometalates
Supercapacitors
Hybrid electrodes
Organic electrolytes
Impedance spectroscopy
description We report a gel polymer electrolyte (GPE) supercapacitor concept with improved pathways for ion transport, thanks to a facile creation of a coherent continuous distribution of the electrolyte throughout the electrode. Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) was chosen as the polymer framework for organic electrolytes. A permeating distribution of the GPE into the electrodes, acting both as integrated electrolyte and binder, as well as thin separator, promotes ion diffusion and increases the active electrode-electrolyte interface, which leads to improvements both in capacitance and rate capability. An activation process induced during the first charge-discharge cycles was detected, after which, the charge transfer resistance and Warburg impedance decrease. We found that a GPE thickness of 12 μm led to optimal capacitance and rate capability. A novel hybrid nanocomposite material, formed by the tetraethylammonium salt of the 1 nm-sized phosphomolybdate cluster and activated carbon (AC/TEAPMo12), was shown to improve its capacitive performance with this gel electrolyte arrangement. Due to the homogeneous dispersion of PMo12 clusters, its energy storage process is non-diffusion-controlled. In the symmetric capacitors, the hybrid nanocomposite material can perform redox reactions in both the positive and the negative electrodes in an ambipolar mode. The volumetric capacitance of a symmetric supercapacitor made with the hybrid electrodes increased by 40% compared to a cell with parent AC electrodes. Due to the synergy between permeating GPE and the hybrid electrodes, the GPE hybrid symmetric capacitor delivers three times more energy density at higher power densities and equivalent cycle stability compared with conventional AC symmetric capacitors.
publishDate 2022
dc.date.none.fl_str_mv 2
2022-01-01
2022
2022-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/256038
https://dx.doi.org/urn:doi:10.3390/nano12030514
url https://ddd.uab.cat/record/256038
https://dx.doi.org/urn:doi:10.3390/nano12030514
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 SEV-2017-0706
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 RTI2018-099826-B-I00
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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