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Polymers
Special Issues
Polymer-Based Materials for Electrochromic, Energy Storage and Other Energy-Related Applications
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Polymer-Based Materials for Electrochromic, Energy Storage and Other Energy-Related Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 2261

Special Issue Editors

Prof. Dr. Guofa Cai

E-Mail Website
Guest Editor
Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials and Engineering, Henan University, Kaifeng 475004, China
Interests: electrochromism; Inorganic/organic composites; energy storage; smart window; multifunction
Prof. Dr. Shanxin Xiong

E-Mail Website
Guest Editor
College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China
Interests: conducting polymer; electrochmism; supercapacitor; carbon nanostructure; nanocomposites

Special Issue Information

Dear Colleagues,

Recently, energy issues have attracted extensive attention with regard to the protection of the environment and judicious use of non-renewable resources. In the meantime, various energy-related devices, such as electrochromic energy-efficient smart windows, electrochemical energy storage devices including capacitors and batteries, and solar cells, have become a global priority for energy storage, conversion, and conservation applications. It is worth noting that polymers play an important role in these energy-related devices, which typically act as an active layer, electrolyte layer and hole/electron transport layer due to their tunable structures and compositions. Therefore, the aim of this Special Issue is to collect ongoing scientific research and developments regarding polymer-based materials for electrochromic, energy storage and other-energy related applications. Research as well as review articles are welcome

Prof. Dr. Guofa Cai
Prof. Dr. Shanxin Xiong
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. Polymers is an international peer-reviewed open access semimonthly 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 2700 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

  • polymer
  • electrochromism
  • inorganic/organic composites
  • supercapacitor
  • battery
  • energy storage
  • multifunction
  • energy conservation
  • electro-catalysis
  • solar cells

Published Papers (1 paper)

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Research

17 pages, 4538 KiB  
Article
Polyurethane-Based Gel Electrolyte for Application in Flexible Electrochromic Devices
by Christopher Johannes, Michael Hartung and Hans-Peter Heim
Polymers 2022, 14(13), 2636; https://doi.org/10.3390/polym14132636 - 28 Jun 2022
Cited by 6 | Viewed by 1830
Abstract
For the application in flexible electrochromic devices (ECDs) on plastic substrates, a new polyurethane-based gel electrolyte was manufactured. In this context, the curing behavior and the influence of the proportion of solvent and salt on the ion conductivity as well as the optical [...] Read more.
For the application in flexible electrochromic devices (ECDs) on plastic substrates, a new polyurethane-based gel electrolyte was manufactured. In this context, the curing behavior and the influence of the proportion of solvent and salt on the ion conductivity as well as the optical and mechanical properties were investigated. Furthermore, the stoichiometric ratio of the polyurethane matrix was varied to influence the ion conductivity. As an isocyanate component, the aliphatic difunctional polyisocyanate prepolymer, synthesized by Hexamethylen-1,6-diisocyanat (HDI), was chosen since the resulting polyurethane is considered to be particularly lightfast, color-stable and temperature-resistant and therefore frequently used for paints and coatings. As polyol a trifunctional polyetherpolyol was selected to form a wide-meshed crosslinked matrix to achieve a mechanically stable but flexible electrolyte, that enables the processing and bending of film-based ECDs. The additives amount and the matrix stoichiometric ratio affected the curing behavior and curability. The salt content had almost no influence on the measured properties in the chosen experimental space. Solvent content had a great influence on ion conductivity and mechanical properties. An understoichiometric ratio of the polyurethane matrix (0.85) increases the ion conductivity and the mechanical flexibility, but also the optical properties in a negative manner. The best specific ion conductivity with 10−5 S/cm was reached with an understoichiometric ratio of 0.85 and a high solvent content (30 wt%). Concluding, due to its high flexibility and transmittance, color neutrality and sufficient ion conductivity, the application of the researched electroyte in ECDs might be suitable. A demonstrator ECD was successfully manufactured and conducted. Full article
(This article belongs to the Special Issue Polymer-Based Materials for Electrochromic, Energy Storage and Other Energy-Related Applications)
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