Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights

Solid polymer electrolytes (SPEs) hold great promise for next-generation battery technologies due to their inherent safety and mechanical stability. However, widely used poly(ethylene oxide) (PEO)-based electrolytes face significant challenges, including high crystallinity, low ionic conductivity at...

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Detalles Bibliográficos
Autores: Alvarez-Fernandez, Alberto, Hernández, Guiomar, Maiz, Jon
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/402790
Acceso en línea:http://hdl.handle.net/10261/402790
Access Level:acceso abierto
Palabra clave:Solid polymer electrolytes
Ionic conductivity
Batteries
Spectroscopy
Scattering
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spelling Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insightsAlvarez-Fernandez, AlbertoHernández, GuiomarMaiz, JonSolid polymer electrolytesIonic conductivityBatteriesSpectroscopyScatteringSolid polymer electrolytes (SPEs) hold great promise for next-generation battery technologies due to their inherent safety and mechanical stability. However, widely used poly(ethylene oxide) (PEO)-based electrolytes face significant challenges, including high crystallinity, low ionic conductivity at ambient temperatures, and a narrow electrochemical stability window. Overcoming these limitations requires the development of novel polymer matrices alongside the refinement of advanced characterization methods that capture the fundamental dynamics of ion transport and polymer segmental mobility. In this Perspective, we review recent advancements in SPE design, focusing on innovative materials such as polytetrahydrofuran (PTHF) or poly(trimethylene carbonate) (PTMC) as well as solid composite electrolytes. We also examine alternative synthetic strategies, including copolymerization, blending, and cross-linking, which aim to reduce crystallinity and enhance ion conduction. Importantly, we emphasize the urgent need for comprehensive experimental and computational characterization techniques. Progress in small-angle X-ray and neutron scattering, quasielastic neutron scattering, and in situ spectroscopy has provided critical insights into the complex interactions between ions and polymer chains. By integrating innovations in materials synthesis with state-of-the-art characterization approaches, this work outlines a forward-looking roadmap for the rational design of SPEs that can meet the demanding requirements of next-generation energy storage systems.J.M. acknowledges the financial support from the “Ramón y Cajal” Program, Grant RYC2023-044285-I, funded by MICIU/AEI/10.13039/501100011033 and ESF+, and the support provided by Eusko Jaurlaritza (code: IT1566-22). A.A.-F. is grateful for the support provided by the Provincial Council of Gipuzkoa under the Fellow Gipuzkoa Program. G.H. acknowledges the financial support from the Swedish Research Council (2023-05172), the HyLiST Project (European Union’s Horizon Europe Research and Innovation Programme under Grant Agreement 101147688), and base funding from STandUP for Energy and COMPEL. The authors are also thankful for support from the IKUR Strategy under the collaboration agreement between Ikerbasque Foundation and Materials Physics Center.Peer reviewedAmerican Chemical SocietyAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Eusko JaurlaritzaDiputación Foral de GipuzkoaSwedish Research CouncilEuropean CommissionIkerbasque Basque Foundation for ScienceConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/402790reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/RYC2023-044285-Iinfo:eu-repo/grantAgreement/EC/HE/101147688https://doi.org/10.1021/jacsau.5c00442Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4027902026-05-22T06:33:51Z
dc.title.none.fl_str_mv Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
title Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
spellingShingle Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
Alvarez-Fernandez, Alberto
Solid polymer electrolytes
Ionic conductivity
Batteries
Spectroscopy
Scattering
title_short Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
title_full Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
title_fullStr Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
title_full_unstemmed Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
title_sort Unlocking solid polymer electrolytes: Advancing materials through characterization-driven insights
dc.creator.none.fl_str_mv Alvarez-Fernandez, Alberto
Hernández, Guiomar
Maiz, Jon
author Alvarez-Fernandez, Alberto
author_facet Alvarez-Fernandez, Alberto
Hernández, Guiomar
Maiz, Jon
author_role author
author2 Hernández, Guiomar
Maiz, Jon
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Eusko Jaurlaritza
Diputación Foral de Gipuzkoa
Swedish Research Council
European Commission
Ikerbasque Basque Foundation for Science
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Solid polymer electrolytes
Ionic conductivity
Batteries
Spectroscopy
Scattering
topic Solid polymer electrolytes
Ionic conductivity
Batteries
Spectroscopy
Scattering
description Solid polymer electrolytes (SPEs) hold great promise for next-generation battery technologies due to their inherent safety and mechanical stability. However, widely used poly(ethylene oxide) (PEO)-based electrolytes face significant challenges, including high crystallinity, low ionic conductivity at ambient temperatures, and a narrow electrochemical stability window. Overcoming these limitations requires the development of novel polymer matrices alongside the refinement of advanced characterization methods that capture the fundamental dynamics of ion transport and polymer segmental mobility. In this Perspective, we review recent advancements in SPE design, focusing on innovative materials such as polytetrahydrofuran (PTHF) or poly(trimethylene carbonate) (PTMC) as well as solid composite electrolytes. We also examine alternative synthetic strategies, including copolymerization, blending, and cross-linking, which aim to reduce crystallinity and enhance ion conduction. Importantly, we emphasize the urgent need for comprehensive experimental and computational characterization techniques. Progress in small-angle X-ray and neutron scattering, quasielastic neutron scattering, and in situ spectroscopy has provided critical insights into the complex interactions between ions and polymer chains. By integrating innovations in materials synthesis with state-of-the-art characterization approaches, this work outlines a forward-looking roadmap for the rational design of SPEs that can meet the demanding requirements of next-generation energy storage systems.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
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/10261/402790
url http://hdl.handle.net/10261/402790
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/RYC2023-044285-I
info:eu-repo/grantAgreement/EC/HE/101147688
https://doi.org/10.1021/jacsau.5c00442
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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
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