Abstract
Miniaturized flexible microsupercapacitors (MSCs) that can be integrated into self-powered sensing systems, detecting networks, and implantable devices have shown great potential to perfect the stand-alone functional units owing to the robust security, continuously improved energy density, inherence high power density, and long service life. This review summarizes the recent progress made in the development of flexible MSCs and their application in integrated wearable electronics. To meet requirements for the scalable fabrication, minimization design, and easy integration of the flexible MSC, the typical assembled technologies consist of ink printing, photolithography, screen printing, laser etching, etc., are provided. Then the guidelines regarding the electrochemical performance improvement of the flexible MSC by materials design, devices construction, and electrolyte optimization are considered. The integrated prototypes of flexible MSC-powered systems, such as self-driven photodetection systems, wearable sweat monitoring units are also discussed. Finally, the future challenges and perspectives of flexible MSC are envisioned.
Highlights
Miniaturized flexible microsupercapacitors (MSCs) that can be integrated into self-powered sensing systems, detecting networks, and implantable devices have shown great potential to perfect the stand-alone functional units owing to the robust security, continuously improved energy density, inherence high power density, and long service life
Flexible on-chip microsupercapacitors (MSCs) with advantages of small size, low weight, ease of handling in appearance, ultrahigh power density, and excellent lifespan are of great importance in developing miniaturized, highly integrated, and wearable electronics, where MSC serve the double duty of energy storage and an energy supply unit [1,2,3,4,5,6,7,8,9,10,11]
We systematically summarize the recent efforts to promote the develIn this review, we systematically summarize the recent efforts to promote the developopment of the flexible on-chip and applications smart,integrated, integrated,and andwearable wearable ment of the flexible on-chip and itsits applications inin smart, electronics
Summary
Flexible on-chip microsupercapacitors (MSCs) with advantages of small size, low weight, ease of handling in appearance, ultrahigh power density, and excellent lifespan are of great importance in developing miniaturized, highly integrated, and wearable electronics, where MSC serve the double duty of energy storage and an energy supply unit [1,2,3,4,5,6,7,8,9,10,11]. To realize the practical application of the on-chip MSC, the electrode materials. To realize the practical application of the on-chip MSC, various fabrication technologies have been proposed, such as typical photolithography various fabrication technologies have been proposed, such as typical photolithography process, direct laser scribing methods, ink printing procedure, etc. MSC and applications smart,integrated, integrated,and andwearable wearable ment of the flexible on-chip and itsits applications inin smart, electronics. MSCsand andtheir their application smart integrated sysElectrode materials design: Composites—the figure has been reproduced with permission from tem. [64]; Integration and application: Self-charged reproduced with permission from Springer Nature [62]; Print, Ink printing—the figure has been. Self-charged MSC—the figure has been reproduced with permission from Wiley [65]; Integrated system—the figure has been reproduced with permission from Wiley [66]
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