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http://dx.doi.org/10.5229/JKES.2011.14.4.214

Characteristics of Redox Flow Battery Using the Soluble Lead Electrolyte  

An, Sang-Yong (R&D Center, Korea Special Battery)
Kim, Eung-Jin (R&D Center, Korea Special Battery)
Publication Information
Journal of the Korean Electrochemical Society / v.14, no.4, 2011 , pp. 214-218 More about this Journal
Abstract
The electrochemical characteristics and performance of redox flow battery using the soluble lead has been evaluated. Cyclic voltammetry was performed on the materials to evaluate deposition and dissolution of lead and lead dioxide. In the negative region, a reduction peak is not observed, and on the reverse scan, on-set voltage is observed at -0.47 V(vs SCE). In the positive region, the distinct peak is observed on the forward and reverse scan. The charge/discharge experiments were carried out graphite electrode in the beaker cell. The charging(deposition) of lead occurs at around 0.5 V(vs SCE) and discharging(dissolution) of lead occur at around 0.25 V(vs SCE). The potential difference is about 0.25 V. The charging(deposition) of dioxide lead is at 1.77 V(vs SCE) and discharging(dissolution) is at around 0.95 V(vs SCE) during first cycle. On subsequent cycles, the charging of dioxide lead starts at below 1.5 V(vs SCE), after a period the voltage increase to 1.7 V(vs SCE). The voltage of discharging is stable at around 1.0 V(vs SCE).
Keywords
Redox battery; Methanesulfonic acid; Deposition; Dissolution;
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Times Cited By KSCI : 1  (Citation Analysis)
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