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NaPF6 含有炭酸プロピレン中における Na の電解精製反応
Title: | NaPF6 含有炭酸プロピレン中における Na の電解精製反応 |
Other Titles: | Electrorefining Reaction of Sodium in Propylene Carbonate Containing NaPF6 |
Authors: | 上田, 幹人1 Browse this author →KAKEN DB | 林, 英樹2 Browse this author | 大塚, 俊明3 Browse this author |
Authors(alt): | Ueda, Mikito1 | Hayashi, Hideki2 | Ohtsuka, Toshiaki3 |
Keywords: | sodium-sulfur secondary battery | electrorefining | recycle |
Issue Date: | Sep-2009 |
Publisher: | 日本金属学会 |
Journal Title: | 日本金属学会誌 |
Journal Title(alt): | Journal of the Japan Institute of Metals |
Volume: | 73 |
Issue: | 9 |
Start Page: | 691 |
End Page: | 694 |
Publisher DOI: | 10.2320/jinstmet.73.691 |
Abstract: | To develop a sodium electrorefining process for the recycling of used sodium-sulfur secondary battery, a non-aqueous electrolytic melt was investigated to pursue an efficient solvent and electrolyte for the process. Propylene carbonate containing NaPF6 was selected, since it has a wide potential window for electrochemical stability and a weak reactivity with metallic sodium. From the impedance measurement of propylene carbonate containing NaPF6, the maximum electric conductivity of 75 mS cm-1 was found at concentration of 1 M NaPF6 at 338 K. The cathodic deposition of metallic sodium on a glassy carbon electrode and the anodic dissolution of metallic sodium occurred in the electrolytic melt. Sodium and a small amount of phosphorus were detected in the electrodeposit by ICP-AES analysis. |
Type: | article |
URI: | http://hdl.handle.net/2115/74947 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 上田 幹人
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