Issue 4, 2017

Renewable-emodin-based wearable supercapacitors

Abstract

With the increasing dependency of human life on wearable electronics, the development of corresponding energy-storage devices is being insensitively pursued. Considering the special usage locations of wearable energy-storage devices, the safety and non-toxicity of electrode materials adopted should be of concern. In this work, a novel all-solid-state wearable supercapacitor based on the renewable-biomolecule emodin, naturally derivable from traditional Chinese herbal rhubarb or Polygonum cuspidatum, was successfully fabricated. Such supercapacitors exhibited excellent charge storage and rate capability with great flexibility and could be integrated into wearable electronics. As a proof of concept, a strap-shaped supercapacitor was fabricated, and it was capable of powering an electronic watch. Our work will promote the development of safe wearable electronics.

Graphical abstract: Renewable-emodin-based wearable supercapacitors

Supplementary files

Article information

Article type
Communication
Submitted
25 Nov 2016
Accepted
29 Dec 2016
First published
03 Jan 2017

Nanoscale, 2017,9, 1423-1427

Renewable-emodin-based wearable supercapacitors

P. Hu, T. Chen, Y. Yang, H. Wang, Z. Luo, J. Yang, H. Fu and L. Guo, Nanoscale, 2017, 9, 1423 DOI: 10.1039/C6NR09190C

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