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The use of gold impregnated carbon-polymer electrodes with the soluble lead flow battery

The use of gold impregnated carbon-polymer electrodes with the soluble lead flow battery
The use of gold impregnated carbon-polymer electrodes with the soluble lead flow battery
The soluble lead flow battery (SLFB) is a hybrid redox flow battery. During charge, lead and lead dioxide are deposited onto the negative and positive electrode surfaces respectively from Pb2+ ions dissolved in a methanesulfonic acid electrolyte. Many of the challenges for the SLFB are related to these solid deposits, particularly the positive lead dioxide deposit. Gold has been shown to be an effective substrate for lead dioxide deposition. However, the prohibitively high cost of pure gold prevents its use as an electrode material. Therefore, using low mass loadings of gold at the surface of carbon-polymer electrodes is proposed. Gold impregnated carbon-polymer electrodes are tested in static electrolyte soluble lead cells. The addition of gold leaf onto the surface of the electrodes improved the peak energy efficiency by 5%. The cycle life of the cell was also improved from 13 cycles using plain electrodes to 29 cycles using the gold plated electrodes. The use of gold at the positive electrode appears to reduce the likelihood of failure due to shorting.
Soluble lead, gold, Redox flow battery, Electrode additive, Lead dioxide, Lead
2352-4847
19-24
Fraser, Ewan, Joseph
0c5d3bc0-a4e7-4213-ab3b-e750103469d7
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Cruden, Andrew
ed709997-4402-49a7-9ad5-f4f3c62d29ab
Fraser, Ewan, Joseph
0c5d3bc0-a4e7-4213-ab3b-e750103469d7
Wills, Richard
60b7c98f-eced-4b11-aad9-fd2484e26c2c
Cruden, Andrew
ed709997-4402-49a7-9ad5-f4f3c62d29ab

Fraser, Ewan, Joseph, Wills, Richard and Cruden, Andrew (2020) The use of gold impregnated carbon-polymer electrodes with the soluble lead flow battery. Energy Reports, 6, 19-24. (doi:10.1016/j.egyr.2020.02.023).

Record type: Article

Abstract

The soluble lead flow battery (SLFB) is a hybrid redox flow battery. During charge, lead and lead dioxide are deposited onto the negative and positive electrode surfaces respectively from Pb2+ ions dissolved in a methanesulfonic acid electrolyte. Many of the challenges for the SLFB are related to these solid deposits, particularly the positive lead dioxide deposit. Gold has been shown to be an effective substrate for lead dioxide deposition. However, the prohibitively high cost of pure gold prevents its use as an electrode material. Therefore, using low mass loadings of gold at the surface of carbon-polymer electrodes is proposed. Gold impregnated carbon-polymer electrodes are tested in static electrolyte soluble lead cells. The addition of gold leaf onto the surface of the electrodes improved the peak energy efficiency by 5%. The cycle life of the cell was also improved from 13 cycles using plain electrodes to 29 cycles using the gold plated electrodes. The use of gold at the positive electrode appears to reduce the likelihood of failure due to shorting.

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1-s2.0-S2352484720301888-main - Accepted Manuscript
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Accepted/In Press date: 25 February 2020
e-pub ahead of print date: 21 May 2020
Keywords: Soluble lead, gold, Redox flow battery, Electrode additive, Lead dioxide, Lead

Identifiers

Local EPrints ID: 450818
URI: http://eprints.soton.ac.uk/id/eprint/450818
ISSN: 2352-4847
PURE UUID: ad198fe0-b189-47a6-a8bc-fa00cd94f0e0
ORCID for Ewan, Joseph Fraser: ORCID iD orcid.org/0000-0001-9592-9071
ORCID for Richard Wills: ORCID iD orcid.org/0000-0002-4805-7589
ORCID for Andrew Cruden: ORCID iD orcid.org/0000-0003-3236-2535

Catalogue record

Date deposited: 12 Aug 2021 16:31
Last modified: 13 Aug 2021 01:52

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Contributors

Author: Ewan, Joseph Fraser ORCID iD
Author: Richard Wills ORCID iD
Author: Andrew Cruden ORCID iD

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