Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.7
5.0
Journals
Gels
Special Issues
Research Progress and Application Prospects of Gel Electrolytes
share announcement

Research Progress and Application Prospects of Gel Electrolytes

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Chemistry and Physics".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 4762

Special Issue Editors

Dr. Ana Isabel Ribeiro

E-Mail Website
Guest Editor
Centro de Ciência e Tecnologia Têxtil, Universidade do Minho, 4800-058 Guimarães, Portugal
Interests: gel electrolytes; nanomaterials; functional textiles; medicinal chemistry
Special Issues, Collections and Topics in MDPI journals
Dr. Andrea Zille

E-Mail Website
Guest Editor
Centro de Ciência e Tecnologia Têxtil, Universidade do Minho, 4800-058 Guimarães, Portugal
Interests: gel electrolytes; textile coating and functionalization; medical textiles; biomaterials; nanomaterials; plasma functionalization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to a Special Issue of the MDPI journal Gels, entitled “Research Progress and Application Prospects of Gel Electrolytes”.

Gel electrolytes have been notable in several applications due to their unique properties. Some of these applications include batteries and energy storage systems, supercapacitors, wearable electronics, sensors, electrochromic devices, electrolytes for dye-sensitized solar cells, electrochemical capacitors, bioelectronics, medical devices, electrochemical analysis, portable electronics and so on. They can combine the advantages of liquid electrolytes and solid components in a single system. They present improved safety since they are less prone to leakage, flammability and evaporation. Moreover, they have higher mechanical stability and flexibility owing to the gel consistency, enabling the shape and integrity to be maintained, allowing more innovative and compact device designs. In addition, gel electrolytes have enhanced electrochemical performance and stability by supporting ion transport, leading to a higher energy density and lifespan without dendritic growth. Lastly, they can have superior biocompatibility and tend to be more environmentally friendly than their alternatives. Despite their advantages, gel electrolytes also pose challenges related to cost-effectiveness, long-term conductivity, and scalability. Research efforts have been directed towards addressing these challenges to make gel electrolytes more competitive with traditional electrolytes.

Thus, the main objective of this Special Issue is to highlight the research works focused on gel-based electrolytes for their different applications.

Dr. Ana Isabel Ribeiro
Dr. Andrea Zille
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Gels is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • gel electrolytes
  • safer electrolytes
  • flexible electronics
  • environmentally friendly electrolytes
  • capacitors
  • batteries
  • conductive materials

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

23 pages, 6923 KiB  
Article
Boosting the Sensitivity and Hysteresis of a Gel Polymer Electrolyte by Embedding SiO2 Nanoparticles and PVP for Humidity Applications
by Michelle Cedeño Mata, Albert Orpella, Manuel Dominguez-Pumar and Sandra Bermejo
Gels 2024, 10(1), 50; https://doi.org/10.3390/gels10010050 - 10 Jan 2024
Cited by 1 | Viewed by 1634
Abstract
Enhancing sensitivity and hysteresis in capacitance humidity sensors is vital for precise, reliable, and consistent humidity control. This study explores this concern by incorporating polyvinylpyrrolidone (PVP) and SiO2 nanoparticles into a polyvinyl alcohol (PVA)-based ionic liquid gel polymer electrolyte (ILGPE), studying two [...] Read more.
Enhancing sensitivity and hysteresis in capacitance humidity sensors is vital for precise, reliable, and consistent humidity control. This study explores this concern by incorporating polyvinylpyrrolidone (PVP) and SiO2 nanoparticles into a polyvinyl alcohol (PVA)-based ionic liquid gel polymer electrolyte (ILGPE), studying two capacitor types: ILGPE and SiO2 composite ILGPE (CILGPE) capacitors. These novel electrolytes use ammonium acetate as a plasticiser, 1-butyl-3-methylimidazolium bromide as an ionic liquid, SiO2 nanoparticles as a composite, and PVA and PVP as host polymers. Capacitors were characterised and modelled using impedance spectroscopy (IS), providing an electrophysical insight into their working principle. Sensitivity and hysteresis were evaluated within a 20–90% relative humidity (RH) range at 25 °C. The SiO2 CILGPE capacitor with PVP presented superior sensitivity and hysteresis, revealing the beneficial combination of SiO2 nanoparticles and PVP. These benefits are due to the creation of pathways that facilitate water molecule diffusion and crystallinity reduction in PVA-ILGPE. In particular, at 10 kHz, it demonstrates a calibrated capacitance sensitivity of 2660 pF/%RH and a hysteresis of 3.28 %RH. This optimised capacitor outperforms some previous humidity capacitive sensors in sensitivity while exhibiting low hysteresis. Full article
(This article belongs to the Special Issue Research Progress and Application Prospects of Gel Electrolytes)
►▼ Show Figures

Graphical abstract

15 pages, 4860 KiB  
Article
Bidirectional Long Short-Term Memory Model of SoH Prediction for Gelled-Electrolyte Batteries under Charging Conditions
by Ting-Jung Kuo and Wei-Ting Chao
Gels 2023, 9(12), 989; https://doi.org/10.3390/gels9120989 - 17 Dec 2023
Viewed by 1391
Abstract
The impact of different charging currents and surrounding temperatures has always been an important aspect of battery lifetime for various electric vehicles and energy storage equipment. This paper proposes a bidirectional long short-term memory model to quantify these impacts on the aging of [...] Read more.
The impact of different charging currents and surrounding temperatures has always been an important aspect of battery lifetime for various electric vehicles and energy storage equipment. This paper proposes a bidirectional long short-term memory model to quantify these impacts on the aging of gel batteries and calculate their state of health. The training data set of the bidirectional long short-term memory model is collected by charging and discharging the gel battery for 300 cycles in a temperature-controlled box and an automated charge and discharge device under different operating conditions. The testing set is generated by a small energy storage device equipped with small solar panels. Data for 220 cycles at different temperatures and charging currents were collected during the experiment. The results show that the mean absolute error (MAE) and root-mean-square error (RMSE) between the training set and testing set are 0.0133 and 0.0251, respectively. In addition to the proposed model providing high accuracy, the gel battery proved to be stable and long-lasting, which makes the gel battery an ideal energy storage solution for renewable energy. Full article
(This article belongs to the Special Issue Research Progress and Application Prospects of Gel Electrolytes)
►▼ Show Figures

Figure 1

Review

Jump to: Research

23 pages, 13481 KiB  
Review
Advances in Carbon Xerogels: Structural Optimization for Enhanced EDLC Performance
by Jongyun Choi, Ji Chul Jung and Wonjong Jung
Gels 2024, 10(6), 400; https://doi.org/10.3390/gels10060400 - 14 Jun 2024
Viewed by 1218
Abstract
This review explores the recent progress on carbon xerogels (CXs) and highlights their development and use as efficient electrodes in organic electric double-layer capacitors (EDLCs). In addition, this work examines how the adjustment of synthesis parameters, such as pH, polymerization duration, and the [...] Read more.
This review explores the recent progress on carbon xerogels (CXs) and highlights their development and use as efficient electrodes in organic electric double-layer capacitors (EDLCs). In addition, this work examines how the adjustment of synthesis parameters, such as pH, polymerization duration, and the reactant-to-catalyst ratio, crucially affects the structure and electrochemical properties of xerogels. The adaptability of xerogels in terms of modification of their porosity and structure plays a vital role in the improvement of EDLC applications as it directly influences the interaction between electrolyte ions and the electrode surface, which is a key factor in determining EDLC performance. The review further discusses the substantial effects of chemical activation with KOH on the improvement of the porous structure and specific surface area, which leads to notable electrochemical enhancements. This structural control facilitates improvement in ion transport and storage, which are essential for efficient EDLC charge–discharge (C–D) cycles. Compared with commercial activated carbons for EDLC electrodes, CXs attract interest for their superior surface area, lower electrical resistance, and stable performance across diverse C–D rates, which underscore their promising potential in EDLC applications. This in-depth review not only summarizes the advancements in CX research but also highlights their potential to expand and improve EDLC applications and demonstrate the critical role of their tunable porosity and structure in the evolution of next-generation energy storage systems. Full article
(This article belongs to the Special Issue Research Progress and Application Prospects of Gel Electrolytes)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop