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http://dx.doi.org/10.5229/JKES.2012.15.3.160

Electrochemical Renewal Method for Enhancing Cyclic Ability of Lead-Acid Battery  

Tae, Uk (Dept. Industrial Engineering Chemistry, Chungbuk National University)
Yang, Jeong-Jin (Dept. Industrial Engineering Chemistry, Chungbuk National University)
Hong, Kyoung-Mi (PureEchem co. ltd.)
Kim, Han-Joo (PureEchem co. ltd.)
Park, Soo-Gil (Dept. Industrial Engineering Chemistry, Chungbuk National University)
Publication Information
Journal of the Korean Electrochemical Society / v.15, no.3, 2012 , pp. 160-164 More about this Journal
Abstract
The lead-acid batteries are the most often used in human life, because of their low cost, good reversibility and high potential but they have limit cycle ability with low capacitance. The main causes of this problem are forming recrystallization of $PbSO_4$ on electrodes surface during cycles which the recrystallization of $PbSO_4$ is known as sulfation. In this study, formation process of sulfation was investigated depending on charge and discharge cycle numbers. And we decomposed sulfation to renew cycle ability of lead-acid batteries. The renewed lead-acid batteries recovered to 84% compared to first capacity after 600 cycles.
Keywords
Lead-acid battery; Lead sulfate;
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