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A novel flow battery - a lead acid battery based on an electrolyte with soluble lead(II) VI. Studies of the lead dioxide positive electrode
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Pletcher, Derek, Zhou, Hantao, Kear, Gareth, Low, John C. T., Walsh, F. C. and Wills, R. G. A. (2008) A novel flow battery - a lead acid battery based on an electrolyte with soluble lead(II) VI. Studies of the lead dioxide positive electrode. Journal of Power Sources, Volume 180 (Number 1). pp. 630-634. doi:10.1016/j.jpowsour.2008.02.025 ISSN 0378-7753.
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Official URL: http://dx.doi.org/10.1016/j.jpowsour.2008.02.025
Abstract
The structure of thick lead dioxide deposits (approximately 1 mm) formed in conditions likely to be met at the positive electrode during the charge/discharge cycling of a soluble lead-acid flow battery is examined. Compact and well adherent layers are possible with current densities >100 mA cm−2 in electrolytes containing 0.1–1.5 M lead(II) and methanesulfonic acid concentrations in the range 0–2.4 M; the solutions also contained 5 mM hexadecyltrimethylammonium cation, C16H33(CH3)3N+. From the viewpoint of the layer properties, the limitation is stress within the deposit leading to cracking and lifting away from the substrate; the stress appears highest at high acid concentration and high current density. There are, however, other factors limiting the maximum current density for lead dioxide deposition, namely oxygen evolution and the overpotential associated with the deposition of lead dioxide. A strategy for operating the soluble lead-acid flow battery is proposed.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
Library of Congress Subject Headings (LCSH): | Lead plating, Lead-acid batteries , Electrochemistry | ||||||||
Journal or Publication Title: | Journal of Power Sources | ||||||||
Publisher: | Elsevier | ||||||||
ISSN: | 0378-7753 | ||||||||
Official Date: | 15 May 2008 | ||||||||
Dates: |
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Volume: | Volume 180 | ||||||||
Number: | Number 1 | ||||||||
Page Range: | pp. 630-634 | ||||||||
DOI: | 10.1016/j.jpowsour.2008.02.025 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Funder: | Great Britain. Department of Trade and Industry (DTI) | ||||||||
Grant number: | TP/4/EET/6/I/2296 |
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