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http://dx.doi.org/10.6111/JKCGCT.2014.24.4.164

Changes of discharge voltage of plate-type sodium sulfur batteries in the early charge/discharge cycles  

Kim, Seong-In (Center for Energy Convergence, Korea Institute of Science and Technology)
Kim, Heon-Tae (Center for Energy Convergence, Korea Institute of Science and Technology)
Choi, Hee-Lack (Department of Materials Science and Engineering, Pukyong National University)
Lim, San-Su-Dae (R&BD Dept. Finetech Co., Ltd.)
Yang, Kee-Deok (R&BD Dept. Finetech Co., Ltd.)
Beum, Jin-Hyung (R&BD Dept. Finetech Co., Ltd.)
Kim, Chang-Sam (Center for Energy Convergence, Korea Institute of Science and Technology)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.24, no.4, 2014 , pp. 164-168 More about this Journal
Abstract
The sodium-sulfur batteries which operate at $350^{\circ}C$ have been mainly used in the field of energy storage system. This batteries consist of liquid sodium anode, sulfur cathode and ${\beta}^{{\prime}{\prime}}$-alumina solid electrolyte. The conditioning process for stabilization of the batteries is essential since the cells show considerable fluctuation of discharge voltage at the beginning of discharge/charge cycles. It is found that one of the reasons of the fluctuation is the gradual change of contact area between molten sodium and solid electrolyte.
Keywords
Sodium sulfur battery; ESS; ${\beta}^{{\prime}{\prime}}$-alumina; Overpotential; Contact area;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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