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High-potential zinc–lead dioxide rechargeable cells
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Leung, P. K., Xu, Q. and Zhao, T. S. (2012) High-potential zinc–lead dioxide rechargeable cells. Electrochimica Acta, Vol.79 . pp. 117-125. doi:10.1016/j.electacta.2012.06.089 ISSN 0013-4686.
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Official URL: http://dx.doi.org/10.1016/j.electacta.2012.06.089
Abstract
A zinc–lead dioxide rechargeable cell with an electrolyte composition of 1.5 mol dm−3 Zn(II), 0.5 mol dm−3 Na(I) and 0.3 mol dm−3 sulfuric acid is proposed and tested. The experimental results show that the open circuit potential of the zinc–lead dioxide cell is as high as 2.4 V (20% higher than conventional lead-acid cells and 56% higher than recent copper–lead dioxide cells), while the average coulombic and energy efficiencies are 90% and 70%, respectively, over 90 cycles at 20 mA cm−2. Furthermore, it is shown that the measured specific energy of the zinc–lead dioxide cell in a stack configuration is about 30% larger than that of a commercial valve regulated lead acid cell at the same operating conditions.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Electrochimica Acta | ||||
Publisher: | Pergamon | ||||
ISSN: | 0013-4686 | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.79 | ||||
Page Range: | pp. 117-125 | ||||
DOI: | 10.1016/j.electacta.2012.06.089 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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