Recent progress in energy storage and conversion of flexible symmetric transducers

Chao LU*, Xi CHEN*

*Corresponding author for this work

Research output: Journal PublicationsReview articleOther Review

17 Citations (Scopus)


With the advancement of modern wearable electronics, flexible symmetric transducers have become frontrunners in energy technology by virtue of their flexibility, light weight, facile integration, high power density, and long cycle life. In recent years, a wide range of achievements in flexible symmetric transducers have been reported, and many impressive wearable applications have been demonstrated. Herein, a timely review on the latest advances in flexible symmetric transducers has been summarized. Firstly, a fundamental understanding of device configuration, working mechanisms, and evaluation methods are presented. Secondly, some emerging flexible materials for electrodes and electrolytes of the devices are provided, including conductive polymers, carbon nanotubes, graphene, graphitic carbon nitride, metal-organic frameworks, and other derived nanomaterials. Thirdly, critical fabrication techniques, different device shapes, impressive wearable applications, and safety issues concerning flexible symmetric transducers are discussed comprehensively. Finally, critical challenges and future research directions are also highlighted for flexible symmetric transducers. © 2021 The Royal Society of Chemistry.
Original languageEnglish
Pages (from-to)753-781
Number of pages29
JournalJournal of Materials Chemistry A
Issue number2
Early online date26 Nov 2020
Publication statusPublished - 14 Jan 2021
Externally publishedYes

Bibliographical note

This work was supported by the Earth Engineering Center, and Center for Advanced Materials for Energy and Environment at Columbia University.


  • Flexible transducers
  • symmetric structure
  • Nanomaterial engineering
  • High energy density
  • Wearable applications


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