Cargando…

Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications

Mechanically and thermally stable novel gel polymer electrolytes (GPEs) have been prepared and applied in supercapacitor cells. Quasi-solid and flexible films were prepared by solution casting technique and formulated by immobilization of ionic liquids (ILs) differing in their aggregate state. A cro...

Descripción completa

Detalles Bibliográficos
Autores principales: Novakov, Christo, Kalinova, Radostina, Veleva, Svetlana, Ublekov, Filip, Dimitrov, Ivaylo, Stoyanova, Antonia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10137811/
https://www.ncbi.nlm.nih.gov/pubmed/37102950
http://dx.doi.org/10.3390/gels9040338
_version_ 1785032556943507456
author Novakov, Christo
Kalinova, Radostina
Veleva, Svetlana
Ublekov, Filip
Dimitrov, Ivaylo
Stoyanova, Antonia
author_facet Novakov, Christo
Kalinova, Radostina
Veleva, Svetlana
Ublekov, Filip
Dimitrov, Ivaylo
Stoyanova, Antonia
author_sort Novakov, Christo
collection PubMed
description Mechanically and thermally stable novel gel polymer electrolytes (GPEs) have been prepared and applied in supercapacitor cells. Quasi-solid and flexible films were prepared by solution casting technique and formulated by immobilization of ionic liquids (ILs) differing in their aggregate state. A crosslinking agent and a radical initiator were added to further stabilize them. The physicochemical characteristics of the obtained crosslinked films show that the realized cross-linked structure contributes to their improved mechanical and thermal stability, as well as an order of magnitude higher conductivity than that of the non-crosslinked ones. The obtained GPEs were electrochemically tested as separator in symmetric and hybrid supercapacitor cells and showed good and stable performance in the investigated systems. The crosslinked film is suitable for use as both separator and electrolyte and is promising for the development of high-temperature solid-state supercapacitors with improved capacitance characteristics.
format Online
Article
Text
id pubmed-10137811
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-101378112023-04-28 Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications Novakov, Christo Kalinova, Radostina Veleva, Svetlana Ublekov, Filip Dimitrov, Ivaylo Stoyanova, Antonia Gels Article Mechanically and thermally stable novel gel polymer electrolytes (GPEs) have been prepared and applied in supercapacitor cells. Quasi-solid and flexible films were prepared by solution casting technique and formulated by immobilization of ionic liquids (ILs) differing in their aggregate state. A crosslinking agent and a radical initiator were added to further stabilize them. The physicochemical characteristics of the obtained crosslinked films show that the realized cross-linked structure contributes to their improved mechanical and thermal stability, as well as an order of magnitude higher conductivity than that of the non-crosslinked ones. The obtained GPEs were electrochemically tested as separator in symmetric and hybrid supercapacitor cells and showed good and stable performance in the investigated systems. The crosslinked film is suitable for use as both separator and electrolyte and is promising for the development of high-temperature solid-state supercapacitors with improved capacitance characteristics. MDPI 2023-04-16 /pmc/articles/PMC10137811/ /pubmed/37102950 http://dx.doi.org/10.3390/gels9040338 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Novakov, Christo
Kalinova, Radostina
Veleva, Svetlana
Ublekov, Filip
Dimitrov, Ivaylo
Stoyanova, Antonia
Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title_full Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title_fullStr Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title_full_unstemmed Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title_short Flexible Polymer-Ionic Liquid Films for Supercapacitor Applications
title_sort flexible polymer-ionic liquid films for supercapacitor applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10137811/
https://www.ncbi.nlm.nih.gov/pubmed/37102950
http://dx.doi.org/10.3390/gels9040338
work_keys_str_mv AT novakovchristo flexiblepolymerionicliquidfilmsforsupercapacitorapplications
AT kalinovaradostina flexiblepolymerionicliquidfilmsforsupercapacitorapplications
AT velevasvetlana flexiblepolymerionicliquidfilmsforsupercapacitorapplications
AT ublekovfilip flexiblepolymerionicliquidfilmsforsupercapacitorapplications
AT dimitrovivaylo flexiblepolymerionicliquidfilmsforsupercapacitorapplications
AT stoyanovaantonia flexiblepolymerionicliquidfilmsforsupercapacitorapplications