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Novel Materials and Technologies for Supercapacitor Applications

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D1: Advanced Energy Materials".

Deadline for manuscript submissions: closed (29 March 2023) | Viewed by 7037

Special Issue Editor


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Guest Editor
School of Mechanical Engineering, Chung-Ang University, Seoul 06974, Korea
Interests: supercapacitors; wearable devices; carbon nanomaterials; crystal growth; laser thermal processing; micro/nano fabrication

Special Issue Information

Dear Colleagues,

In this Special Issue, we would like to invite submissions of interesting papers that highlight the promise of novel materials and fabrication technology for high-performance supercapacitors. Interest in high-performance energy storage devices is exponentially increasing, necessitating the development of novel electrode materials. Researchers have demonstrated that supercapacitors built with novel materials exhibit high capacitance with interesting functionalities such as mechanical flexibility, optical transparency, structural self-healability, and biodegradablity. These supercapacitors are expected to play a central role in futuristic electronics as a main or auxiliary energy storage device. Various techniques are being developed for the fabrication of supercapacitor electrodes and their precise integration with flexible substrates, such as films and fibers. These techniques enable miniaturization of supercapacitors, which offers another great opportunity to realize wearable supercapacitors.

This Special Issue covers various topics related to novel materials and technologies for cutting-edge supercapacitors, including but not limited to the following:

  • Microsupercapacitor;
  • Synthesis techniques for electrode materials;
  • Mesoporous materials
  • Carbon nanomaterials;
  • Laser-induced graphene;
  • Pseudocapacitive materials;
  • Flexible current collectors;
  • Pyrolysis techniques for the fabrication of supercapacitor electrode;
  • Direct writing fabrication of supercapacitor electrode;
  • 3D printing technology for electrode fabrication;
  • Fiber-type supercapacitor;
  • Reliability evaluation of flexible supercapacitors;
  • Supercapacitor integration with wearable electronics.

Assoc. Prof. Jung Bin In
Guest Editor

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Keywords

  • supercapacitor
  • microsupercapacitor
  • energy storage
  • nanomaterial
  • pyrolysis
  • laser-induced graphene
  • micropattern
  • flexible electrolyte
  • flexible supercapacitor
  • fiber-type supercapacitor
  • wearable devices

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Published Papers (3 papers)

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Research

15 pages, 31059 KiB  
Article
Effect of Synthesis Conditions on Capacitive Properties of Porous Carbon Derived from Hemp Bast Fiber
by Michał Bembenek, Volodymyr Kotsyubynsky, Volodymyra Boychuk, Bogdan Rachiy, Ivan Budzulyak, Łukasz Kowalski and Liubomyr Ropyak
Energies 2022, 15(22), 8761; https://doi.org/10.3390/en15228761 - 21 Nov 2022
Cited by 5 | Viewed by 1543
Abstract
A systematic study of the influence of synthesis conditions on the structural, morphological, and electrical properties, as well as the electrochemical performance of hemp fiber-derived carbon materials was performed. An analysis of the capacitive response of carbons obtained under various activation conditions with [...] Read more.
A systematic study of the influence of synthesis conditions on the structural, morphological, and electrical properties, as well as the electrochemical performance of hemp fiber-derived carbon materials was performed. An analysis of the capacitive response of carbons obtained under various activation conditions with additional treatment with HNO3 and annealing was completed. The contribution of the formation of an electrical double layer at the outer electrode–electrolyte interface, as well as on surfaces inside micropores, has been studied and analyzed in terms of the effect of the turbostratic carbon properties (average lateral size of graphite crystallites, pore size distribution, BET surface area). Full article
(This article belongs to the Special Issue Novel Materials and Technologies for Supercapacitor Applications)
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11 pages, 2129 KiB  
Article
Influence of the Hydrophilic Surface of Nanofiber Support on the Performance of Hybrid Supercapacitors
by Hyo-Young Kim, Seon-Yeong Lee, In-Yup Jeon, Jeeyoung Shin and Young-Wan Ju
Energies 2021, 14(22), 7621; https://doi.org/10.3390/en14227621 - 15 Nov 2021
Cited by 7 | Viewed by 1867
Abstract
Concerns associated with global warming and the depleting reserves of fossil fuels have highlighted the importance of high−performance energy storage systems (ESSs) for efficient energy usage. ESSs such as supercapacitors can contribute to improved power quality of an energy generation system, which is [...] Read more.
Concerns associated with global warming and the depleting reserves of fossil fuels have highlighted the importance of high−performance energy storage systems (ESSs) for efficient energy usage. ESSs such as supercapacitors can contribute to improved power quality of an energy generation system, which is characterized by a slow load response. Composite materials are primarily used as supercapacitor electrodes because they can compensate for the disadvantages of carbon or metal oxide electrode materials. In this study, a composite of oxide nanoparticles loaded on a carbon nanofiber support was used as an electrode material for a hybrid supercapacitor. The addition of a small amount of hydrophilic FeN@GnP (Fe− and N−doped graphene nanoplates) modified the surface properties of carbon nanofibers prepared by electrospinning. Accordingly, the effects of the hydrophobic/hydrophilic surface properties of the nanofiber support on the morphology of Co3O4 nanoparticles loaded on the nanofiber, as well as the performance of the supercapacitor, were systematically investigated. Full article
(This article belongs to the Special Issue Novel Materials and Technologies for Supercapacitor Applications)
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11 pages, 2993 KiB  
Article
Digitally Patterned Mesoporous Carbon Nanostructures of Colorless Polyimide for Transparent and Flexible Micro-Supercapacitor
by Hyeonwoo Kim, Suwon Hwang, Taeseung Hwang, Jung Bin In and Junyeob Yeo
Energies 2021, 14(9), 2547; https://doi.org/10.3390/en14092547 - 29 Apr 2021
Cited by 9 | Viewed by 2904
Abstract
Here, we demonstrate the fabrication of a flexible and transparent micro-supercapacitor (MSC), using colorless polyimide (CPI) via a direct laser writing carbonization (DLWC) process. The focused laser beam directly carbonizes the CPI substrate and generates a porous carbon structure on the surface of [...] Read more.
Here, we demonstrate the fabrication of a flexible and transparent micro-supercapacitor (MSC), using colorless polyimide (CPI) via a direct laser writing carbonization (DLWC) process. The focused laser beam directly carbonizes the CPI substrate and generates a porous carbon structure on the surface of the CPI substrate. Fluorine, which is one of the chemical compositions of CPI, can enhance the specific area and the conductivity of the carbon electrode by creating micropores in carbon structures during carbonization. Thus, the fabricated carbonized CPI-based MSC shows enhanced specific capacitance (1.20 mF at 10 mV s−1) and better transmittance (44.9%) compared to the conventional PI-based MSC. Additionally, the fabricated carbonized CPI-based MSC shows excellent cyclic performance with minimal reduction (<~10%) in 3000 cycles and high capacitance retention under mechanical bending test conditions. Due to its high flexibility, transparency, and capacitance, we expect that carbonized CPI-based MSC can be further applied to various flexible and transparent applications. Full article
(This article belongs to the Special Issue Novel Materials and Technologies for Supercapacitor Applications)
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