Flexible/Stretchable Supercapacitors with Novel Functionality for Wearable Electronics |
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Authors: | Kayeon Keum Jung Wook Kim Soo Yeong Hong Jeong Gon Son Sang-Soo Lee Jeong Sook Ha |
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Affiliation: | 1. Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841 Republic of Korea;2. Photo-Electronic Hybrids Research Center, Korea Institute of Science and Technology, Seoul, 02792 Republic of Korea |
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Abstract: | With the miniaturization of personal wearable electronics, considerable effort has been expended to develop high-performance flexible/stretchable energy storage devices for powering integrated active devices. Supercapacitors can fulfill this role owing to their simple structures, high power density, and cyclic stability. Moreover, a high electrochemical performance can be achieved with flexible/stretchable supercapacitors, whose applications can be expanded through the introduction of additional novel functionalities. Here, recent advances in and future prospects for flexible/stretchable supercapacitors with innate functionalities are covered, including biodegradability, self-healing, shape memory, energy harvesting, and electrochromic and temperature tolerance, which can contribute to reducing e-waste, ensuring device integrity and performance, enabling device self-charging following exposure to surrounding stimuli, displaying the charge status, and maintaining the performance under a wide range of temperatures. Finally, the challenges and perspectives of high-performance all-in-one wearable systems with integrated functional supercapacitors for future practical application are discussed. |
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Keywords: | flexible/stretchable materials multifunctionality supercapacitors wearable electronics |
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