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.
Publication Year: 2012
Publication Date: 2012-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 31
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