Progress and Perspectives in Microsupercapacitors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C:Chemistry".

Deadline for manuscript submissions: closed (15 September 2022) | Viewed by 1852

Special Issue Editor

School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
Interests: microsupercapacitor; micro energy storage; wearable devices; integrated electronics

Special Issue Information

Dear Colleagues,

Micro energy storage devices that possess the advantages of small size, high integration, and multifunction have been demonstrated as an excellent prospect for applications in integrated wearable electronics. Flexible microsupercapacitors (MSCs) with controlled size, deformable structure, superior safety, and comfortable attachment to the human body are especially considered an optimal choice for powering with electronic skin, nanorobot, embeddable armarium, sensors, detectors, etc.

In recent years, state-of-the-art MSC devices have been designed to connect with various types of wearable devices, acting as a bridge between energy harvesters (nanogenerators, wireless coil, or thermal charged MSC) and energy consumables (MSC-photodetecting units, self-powered sensing system, smart micro devices, wearable all-in-one systems). Hence, novel MSC devices, smart MSC-powered integrated systems, new strategies toward high-performance electrodes and gel electrolytes for fabricating MSC devices, as well as the challenges that remain in MSC devices need to be summarized, thus helping to identify the future development directions of MSC devices. We invite exceptional scientists and researchers to submit their remarkable results on “Progress and Perspectives in Microsupercapacitors”.

This Special issue focuses on recent advances in flexible MSCs devices. Additionally, comprehensive review articles are invited to summarize the achievements of each field and provide a deeper understanding to the scientific communities.

Dr. La Li
Guest Editor

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. Micromachines 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 2600 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

  • electrode materials
  • microsupercapacitor
  • gel electrolyte
  • flexible electronics
  • micro energy storage
  • wearable devices
  • integrated electronics

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

9 pages, 4880 KiB  
Article
Agarose Gel-Templating Synthesis of a 3D Wrinkled Graphene Architecture for Enhanced Supercapacitor Performance
by Junhyeop Shin, Jong-Kwon Park, Geon Woo Kim, Inho Nam and Soomin Park
Micromachines 2022, 13(7), 1113; https://doi.org/10.3390/mi13071113 - 15 Jul 2022
Cited by 1 | Viewed by 1586
Abstract
The increasing use of rapidly fluctuating renewable energy sources, such as sunlight, has necessitated the use of supercapacitors, which are a type of energy storage system with high power. Chemically exfoliated graphene oxide (GO) is a representative starting material in the fabrication of [...] Read more.
The increasing use of rapidly fluctuating renewable energy sources, such as sunlight, has necessitated the use of supercapacitors, which are a type of energy storage system with high power. Chemically exfoliated graphene oxide (GO) is a representative starting material in the fabrication of supercapacitor electrodes based on reduced GO (rGO). However, the restacking of rGO sheets driven by π–π stacking interactions leads to a significant decrease in the electrochemically active surface area, leading to a loss of energy density. Here, to effectively inhibit restacking and construct a three-dimensional wrinkled structure of rGO (3DWG), we propose an agarose gel-templating method that uses agarose gel as a soft and removable template. The 3DWG, prepared via the sequential steps of gelation, freeze-drying, and calcination, exhibits a macroporous 3D structure and 5.5-fold higher specific capacitance than that of rGO restacked without the agarose template. Further, we demonstrate a “gel-stamping” method to fabricate thin-line patterned 3DWG, which involves the gelation of the GO–agarose gel within micrometer-sized channels of a customized polydimethylsiloxane (PDMS) mold. As an easy and low-cost manufacturing process, the proposed agarose gel templating method could provide a promising strategy for the 3D structuring of rGO. Full article
(This article belongs to the Special Issue Progress and Perspectives in Microsupercapacitors)
Show Figures

Figure 1

Back to TopTop