Abstract
The Na/PVdF/S cells were composed of solid sodium, sulfur, and polyvinylidene fluoride–hexafluoropropene (PVdF) gel polymer electrolyte. The PVdF polymer electrolyte was prepared form tetraglyme plasticizer and NaCF3SO3 salt, and its electrochemical properties were studied using CV and impedance analysis. The interfacial resistance between sodium and polymer electrolyte increase with storage time, which might be associated with passivation layer. Solid-state sodium/sulfur cell using a PVdF gel polymer electrolyte has been tested. The Na/PVdF/S cell with 0.288 mA cm−2 shows a high discharge capacity of 392 mAh g−1 and 36 mAh g−1 after 20 cycles. The cycle performance of Na/GPE/S cell operating at 25 °C is worse than Na/S cell at a high temperature.
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Acknowledgement
This research was supported by the MIC (Ministry of Information and Communication), Korea, under the ITRC (Information Technology Research Center) support program supervised by IITA (Institute of Information Technology Assessment).
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Contribution to ICMAT 2007, Symposium K: Nanostructured and bulk materials for electrochemical power sources, July 1–6, 2007, Singapore.
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Kim, JS., Ahn, HJ., Kim, IP. et al. The short-term cycling properties of Na/PVdF/S battery at ambient temperature. J Solid State Electrochem 12, 861–865 (2008). https://doi.org/10.1007/s10008-008-0504-8
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DOI: https://doi.org/10.1007/s10008-008-0504-8