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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

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J. Jpn. Inst. Met. 73(9) 691.pdf419.33 kBPDFView/Open
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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
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
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)

Submitter: 上田 幹人

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