The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells

The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells

Thermo-electrochemical cells (known as thermocells) can convert heat energy into electrical power through redox reactions driven by the presence of a temperature gradient. Low-grade heat from the human body can be harvested using thermocells containing a suitable electrolyte, such as the iron(II)/ir...

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Main Authors: Yuetong Zhou, Yuqing Liu, Mark A. Buckingham, Shuai Zhang, Leigh Aldous, Stephen Beirne, Gordon Wallace, Jun Chen
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:Electrochemistry Communications
Subjects:
Thermo-electrochemistry
Solid-state electrolyte
Low-grade thermal energy
Supporting electrolyte
Online Access:http://www.sciencedirect.com/science/article/pii/S1388248121000229
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spelling doaj-c5a7a553fc0148d4a134149b30c732442021-03-11T04:24:17ZengElsevierElectrochemistry Communications1388-24812021-03-01124106938The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cellsYuetong Zhou0Yuqing Liu1Mark A. Buckingham2Shuai Zhang3Leigh Aldous4Stephen Beirne5Gordon Wallace6Jun Chen7Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, AustraliaIntelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, Australia; State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, PR ChinaDepartment of Chemistry, Britannia House, King’s College London, London SE1 1DB, UKIntelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, AustraliaDepartment of Chemistry, Britannia House, King’s College London, London SE1 1DB, UKIntelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, AustraliaIntelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, AustraliaIntelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW 2500, Australia; Corresponding author.Thermo-electrochemical cells (known as thermocells) can convert heat energy into electrical power through redox reactions driven by the presence of a temperature gradient. Low-grade heat from the human body can be harvested using thermocells containing a suitable electrolyte, such as the iron(II)/iron(III) chloride redox couple housed in poly (vinyl alcohol) described here. However, conventionally the thermo-electrochemical performance of gelled electrolytes is poor, due to slow ionic transport and high charge transfer resistance. In this report, hydrochloric acid has been found to synergistically decrease the charge transfer resistance of the redox reaction, whilst doubling the tensile properties of the gel housing. Moreover, individual thermocells can be connected in parallel to enhance current output.http://www.sciencedirect.com/science/article/pii/S1388248121000229Thermo-electrochemistrySolid-state electrolyteLow-grade thermal energySupporting electrolyte
collection DOAJ
language English
format Article
sources DOAJ
author Yuetong Zhou
Yuqing Liu
Mark A. Buckingham
Shuai Zhang
Leigh Aldous
Stephen Beirne
Gordon Wallace
Jun Chen
spellingShingle Yuetong Zhou
Yuqing Liu
Mark A. Buckingham
Shuai Zhang
Leigh Aldous
Stephen Beirne
Gordon Wallace
Jun Chen
The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
Electrochemistry Communications
Thermo-electrochemistry
Solid-state electrolyte
Low-grade thermal energy
Supporting electrolyte
author_facet Yuetong Zhou
Yuqing Liu
Mark A. Buckingham
Shuai Zhang
Leigh Aldous
Stephen Beirne
Gordon Wallace
Jun Chen
author_sort Yuetong Zhou
title The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
title_short The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
title_full The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
title_fullStr The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
title_full_unstemmed The significance of supporting electrolyte on poly (vinyl alcohol)–iron(II)/iron(III) solid-state electrolytes for wearable thermo-electrochemical cells
title_sort significance of supporting electrolyte on poly (vinyl alcohol)–iron(ii)/iron(iii) solid-state electrolytes for wearable thermo-electrochemical cells
publisher Elsevier
series Electrochemistry Communications
issn 1388-2481
publishDate 2021-03-01
description Thermo-electrochemical cells (known as thermocells) can convert heat energy into electrical power through redox reactions driven by the presence of a temperature gradient. Low-grade heat from the human body can be harvested using thermocells containing a suitable electrolyte, such as the iron(II)/iron(III) chloride redox couple housed in poly (vinyl alcohol) described here. However, conventionally the thermo-electrochemical performance of gelled electrolytes is poor, due to slow ionic transport and high charge transfer resistance. In this report, hydrochloric acid has been found to synergistically decrease the charge transfer resistance of the redox reaction, whilst doubling the tensile properties of the gel housing. Moreover, individual thermocells can be connected in parallel to enhance current output.
topic Thermo-electrochemistry
Solid-state electrolyte
Low-grade thermal energy
Supporting electrolyte
url http://www.sciencedirect.com/science/article/pii/S1388248121000229
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