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Polymers
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Advanced Conductive Polymers for Electrochemical Applications
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Advanced Conductive Polymers for Electrochemical Applications

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

Deadline for manuscript submissions: closed (25 February 2024) | Viewed by 5351

Special Issue Editors

Dr. Soochan Kim

E-Mail Website
Guest Editor
Department of Engineering, University of Cambridge, Cambridge CB3 0FS, UK
Interests: polymer; electrochemistry; energy storage; biosensor
Prof. Dr. Youngkwan Lee

E-Mail Website
Guest Editor
School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
Interests: functional polymer; electrochemistry; energy storage; biosensor

Special Issue Information

Dear Colleagues,

Conductive polymers are Nobel Prize-winning materials and have been recognized as representative functional polymers due to their unique electronic, mechanical, and chemical properties. With the development of various electrochemical-based applications, conductive polymers have been widely used not only in physical roles performed by conventional polymers, but also as electrochemical agents such as active materials, conductive agents, current collectors, functional coating materials, etc. In particular, they play a significant role in energy/environment/bio applications, which represent next-generation applications closely related to human life. This Special Issue discusses the design of conductive polymers in electrochemical applications from the perspectives of material, structure, and manufacturing process, aiming to provide all potential readers with new insights into electrochemical applications using advanced conductive polymers.

Dr. Soochan Kim
Prof. Dr. Youngkwan Lee
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

  • conductive polymers
  • conductive polymeric composites
  • electrochemical energy conversion and storage systems
  • sensors
  • electrochemical catalysis
  • electronic devices
  • bio-medical applications
  • photovoltaic cells

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Published Papers (3 papers)

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Research

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15 pages, 3277 KiB  
Article
Novel Conductive AgNP-Based Adhesive Based on Novel Poly (Ionic Liquid)-Based Waterborne Polyurethane Chloride Salts for E-Textiles
by Haiyang Liao, Yeqi Xiao, Tiemin Xiao, Hongjin Kuang, Xiaolong Feng, Xiao Sun, Guixin Cui, Xiaofei Duan and Pu Shi
Polymers 2024, 16(4), 540; https://doi.org/10.3390/polym16040540 - 17 Feb 2024
Viewed by 1256
Abstract
The emergence of novel e-textile materials that combine the inherent qualities of the textile substrate (lightweight, soft, breathable, durable, etc.) with the functionality of micro/nano-electronic materials (conductive, dielectric, sensing, etc.) has resulted in a trend toward miniaturization, integration, and intelligence in new electronic [...] Read more.
The emergence of novel e-textile materials that combine the inherent qualities of the textile substrate (lightweight, soft, breathable, durable, etc.) with the functionality of micro/nano-electronic materials (conductive, dielectric, sensing, etc.) has resulted in a trend toward miniaturization, integration, and intelligence in new electronic devices. However, the formation of a conductive network by micro/nano-conductive materials on textiles necessitates high-temperature sintering, which inevitably causes substrate aging and component damage. Herein, a bis-hydroxy-imidazolium chloride salt as a hard segment to synthesize a waterborne polyurethane (WPU) adhesive is designed and prepared. When used in nano-silver-based printing coatings, it offers strong adherence for coatings, reaching 16 N cm−1; on the other hand, the introduction of chloride ions enables low-temperature (60 °C) chemical sintering to address the challenge of secondary treatment and high-temperature sintering (>150 °C). Printed into flexible circuits, the resistivity can be controlled by the content of imidazolium salts anchored in the molecular chain of the WPU from a maximum resistivity of 3.1 × 107 down to 5.8 × 10−5 Ω m, and it can conduct a Bluetooth-type finger pulse detector with such low resistivity. As a flexible circuit, it also offers high stability against washing and adhesion, which the resistivity only reduces less than 20% after washing 10 times and adhesion. Owing to the adjustability of the resistivity, we fabricated an all-textile flexible pressure sensor that accurately differentiates different external pressures (min. 10 g, ~29 Pa), recognizes forms, and detects joint motions (finger bending and wrist flexion). Full article
(This article belongs to the Special Issue Advanced Conductive Polymers for Electrochemical Applications)
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18 pages, 6700 KiB  
Article
Hofmeister Series for Conducting Polymers: The Road to Better Electrochemical Activity?
by Alexey I. Volkov and Rostislav V. Apraksin
Polymers 2023, 15(11), 2468; https://doi.org/10.3390/polym15112468 - 26 May 2023
Cited by 1 | Viewed by 2145
Abstract
Poly-3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS) is a widely used conducting polymer with versatile applications in organic electronics. The addition of various salts during the preparation of PEDOT:PSS films can significantly influence their electrochemical properties. In this study, we systematically investigated the effects of different salt [...] Read more.
Poly-3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS) is a widely used conducting polymer with versatile applications in organic electronics. The addition of various salts during the preparation of PEDOT:PSS films can significantly influence their electrochemical properties. In this study, we systematically investigated the effects of different salt additives on the electrochemical properties, morphology, and structure of PEDOT:PSS films using a variety of experimental techniques, including cyclic voltammetry, electrochemical impedance spectroscopy, operando conductance measurements and in situ UV-VIS spectroelectrochemistry. Our results showed that the electrochemical properties of the films are closely related to the nature of the additives used and allowed us to establish a probable relationship with the Hofmeister series. The correlation coefficients obtained for the capacitance and Hofmeister series descriptors indicate a strong relationship between the salt additives and the electrochemical activity of PEDOT:PSS films. The work allows us to better understand the processes occurring within PEDOT:PSS films during modification with different salts. It also demonstrates the potential for fine-tuning the properties of PEDOT:PSS films by selecting appropriate salt additives. Our findings can contribute to the development of more efficient and tailored PEDOT:PSS-based devices for a wide range of applications, including supercapacitors, batteries, electrochemical transistors, and sensors. Full article
(This article belongs to the Special Issue Advanced Conductive Polymers for Electrochemical Applications)
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Review

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15 pages, 9125 KiB  
Review
Electropolymerisation Technologies for Next-Generation Lithium–Sulphur Batteries
by Soochan Kim and Youngkwan Lee
Polymers 2023, 15(15), 3231; https://doi.org/10.3390/polym15153231 - 29 Jul 2023
Cited by 1 | Viewed by 1562
Abstract
Lithium–sulphur batteries (LiSBs) have garnered significant attention as the next-generation energy storage device because of their high theoretical energy density, low cost, and environmental friendliness. However, the undesirable “shuttle effect” by lithium polysulphides (LPSs) severely inhibits their practical application. To alleviate the shuttle [...] Read more.
Lithium–sulphur batteries (LiSBs) have garnered significant attention as the next-generation energy storage device because of their high theoretical energy density, low cost, and environmental friendliness. However, the undesirable “shuttle effect” by lithium polysulphides (LPSs) severely inhibits their practical application. To alleviate the shuttle effect, conductive polymers have been used to fabricate LiSBs owing to their improved electrically conducting pathways, flexible mechanical properties, and high affinity to LPSs, which allow the shuttle effect to be controlled. In this study, the applications of various conductive polymers prepared via the simple yet sophisticated electropolymerisation (EP) technology are systematically investigated based on the main components of LiSBs (cathodes, anodes, separators, and electrolytes). Finally, the potential application of EP technology in next-generation batteries is comprehensively discussed. Full article
(This article belongs to the Special Issue Advanced Conductive Polymers for Electrochemical Applications)
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