Issue 6, 2023

Planar micro-supercapacitors toward high performance energy storage devices: design, application and prospects

Abstract

The burgeoning revolutions of portable and integrated electronic products have drastically stimulated the upgrade of traditional power supplies toward miniaturized scales. In this regard, planar micro-supercapacitors (PMSCs) are considered as candidates for energy storage devices owing to the unique two-dimensional structure, fast charge/discharge rate, high power density and long cycling lifetime. However, the manufacturing of PMSCs requires advanced techniques to provide rational designs on microelectrodes and reduce the size while maintaining high-resolution. The vacuum filtration and spray coating techniques have been used to design millimeter-scale electrodes with the assistance of an interdigital mask. The electrochemical strategy and other mask-free techniques can further reduce the size of the microelectrodes and meet the requirements of high-resolution PMSCs, including electrolytic and electrophoretic deposition, inkjet printing, laser scribing, plasma jet, nanoimprint lithography and 3D printing techniques. The precise design of PMSCs contributes to energy storage devices, sensors and filters. Furthermore, it is vital to design a microelectrode with superior structural integrity for the controllable manufacture of high precision and high performance PMSCs by considering the mechanism and key factors of microfabrication strategies.

Graphical abstract: Planar micro-supercapacitors toward high performance energy storage devices: design, application and prospects

Article information

Article type
Review Article
Submitted
18 2 2023
Accepted
29 4 2023
First published
01 5 2023
This article is Open Access
Creative Commons BY-NC license

Energy Adv., 2023,2, 765-783

Planar micro-supercapacitors toward high performance energy storage devices: design, application and prospects

S. Zhu, Z. Xu, H. Tao, D. Yang, X. Tang and Y. Wang, Energy Adv., 2023, 2, 765 DOI: 10.1039/D3YA00080J

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