Dr Libu Manjakkal L.Manjakkal@napier.ac.uk
Lecturer
Dr Libu Manjakkal L.Manjakkal@napier.ac.uk
Lecturer
Abhilash Pullanchiyodan
Nivasan Yogeswaran
Ensieh S. Hosseini
Ravinder Dahiya
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.
Manjakkal, L., Pullanchiyodan, A., Yogeswaran, N., Hosseini, E. S., & Dahiya, R. (2020). A Wearable Supercapacitor Based on Conductive PEDOT:PSS‐Coated Cloth and a Sweat Electrolyte. Advanced materials, 32(24), Article 1907254. https://doi.org/10.1002/adma.201907254
Journal Article Type | Article |
---|---|
Online Publication Date | May 11, 2020 |
Publication Date | 2020-06 |
Deposit Date | Jul 19, 2022 |
Publicly Available Date | Jul 20, 2022 |
Journal | Advanced Materials |
Print ISSN | 0935-9648 |
Electronic ISSN | 1521-4095 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 32 |
Issue | 24 |
Article Number | 1907254 |
DOI | https://doi.org/10.1002/adma.201907254 |
Keywords | energy materials, PEDOT:PSS, smart textiles, supercapacitor, sweat, wearable |
Public URL | http://researchrepository.napier.ac.uk/Output/2890600 |
A Wearable Supercapacitor Based On Conductive PEDOT:PSS‐Coated Cloth And A Sweat Electrolyte
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