Manjakkal, L. , Pullanchiyodan, A., Yogeswaran, N., Seyed Hosseini, E. and Dahiya, R. (2020) A wearable supercapacitor based on conductive PEDOT:PSS-coated cloth and a sweat electrolyte. Advanced Materials, 32(24), 1907254. (doi: 10.1002/adma.201907254) (PMID:32390218)
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204460.pdf - Published Version Available under License Creative Commons Attribution. 4MB |
Abstract
A sweat‐based flexible supercapacitor (SC) for self‐powered smart textiles and wearable systems is presented. The developed SC uses sweat as the electrolyte and poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the active electrode. With PEDOT:PSS coated onto cellulose/polyester cloth, the SC shows specific capacitance of 8.94 F g−1 (10 mF cm−2) at 1 mV s−1. With artificial sweat, the energy and power densities of the SC are 1.36 Wh kg−1 and 329.70 W kg−1, respectively for 1.31 V and its specific capacitance is 5.65 F g−1. With real human sweat the observed energy and power densities are 0.25 Wh kg−1, and 30.62 W kg−1, respectively. The SC performance is evaluated with different volumes of sweat (20, 50, and 100 µL), bending radii (10, 15, 20 mm), charging/discharging stability (4000 cycles), and washability. With successful on‐body testing, the first demonstration of the suitability of a sweat‐based SC for self‐powered cloth‐based sensors to monitor sweat salinity is presented. With attractive performance and the use of body fluids, the presented approach is a safe and sustainable route to meet the power requirements in wearable systems.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Pullanchiyodan, Dr Abhilash and Yogeswaran, Mr Nivasan and Dahiya, Professor Ravinder and Seyed Hosseini, Dr Ensieh and Manjakkal, Dr Libu |
| Authors: | Manjakkal, L., Pullanchiyodan, A., Yogeswaran, N., Seyed Hosseini, E., and Dahiya, R. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Advanced Materials |
| Publisher: | Wiley |
| ISSN: | 0935-9648 |
| ISSN (Online): | 1521-4095 |
| Published Online: | 11 May 2020 |
| Copyright Holders: | Copyright © 2020 The Authors |
| First Published: | First published in Advanced Materials 32(24): 1907254 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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