Flexible/Stretchable Supercapacitors with Novel Functionality for Wearable Electronics

Kayeon Keum, Jung Wook Kim, Soo Yeong Hong, Jeong Gon Son, Sang Soo Lee, Jeong Sook Ha

Research output: Contribution to journalReview articlepeer-review

191 Citations (Scopus)

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.

Original languageEnglish
Article number2002180
JournalAdvanced Materials
Volume32
Issue number51
DOIs
Publication statusPublished - 2020 Dec 22

Bibliographical note

Funding Information:
K.K., J.W.K., and S.Y.H. contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (Grant No. NRF‐2019R1A2B5B03069545). It was also supported by KU‐KIST graduate school program of Korea University and Korea Institute of Science and Technology (KIST) institutional program (2E30160).

Funding Information:
K.K., J.W.K., and S.Y.H. contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (Grant No. NRF-2019R1A2B5B03069545). It was also supported by KU-KIST graduate school program of Korea University and Korea Institute of Science and Technology (KIST) institutional program (2E30160).

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Keywords

  • flexible/stretchable materials
  • multifunctionality
  • supercapacitors
  • wearable electronics

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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