Characterization of lithium tetrafluoroborate and N-methylacetamide complex as electric and ionic conductors

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• 作者：Byungsun Bang ; Taewhan Yeu
• 关键词：Ionic Complex ; Amide Complex ; Ionic Conductor ; Electric Conductor ; Supercapacitor
• 刊名：Korean Journal of Chemical Engineering
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：33
• 期：4
• 页码：1441-1446
• 全文大小：628 KB
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• 作者单位：Byungsun Bang (1)
  Taewhan Yeu (1)
  
  1. School of Chemical Engineering & Materials Science, Chung-Ang University, 221, Heulsuk-dong, Dongjak-gu, Seoul, 06911, Korea
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Catalysis
  Materials Science
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1975-7220

文摘

A complex of lithium tetrafluoroborate (LiBF₄) and N-methylacetamide was prepared and investigated. Both LiBF₄ and N-methylacetamide are solid at room temperature, but their mixture has liquid- or solid phase at room temperature, depending on the composition. When the complex is liquid, the complex has ionic conductivity. But if the complex is solid, it has electric conductivity. The room temperature ionic conductivities of some compositions in propylene carbonate of the complex exceed 6mS/cm. Room temperature electric conductivity of the complex is 5.025×10−3 mS/cm2. In addition, supercapacitors were constructed and tested using the above-mentioned complex electrolyte. The electrochemical properties of the complex and the supercapacitors were evaluated with cyclic voltammetry, ac impedance spectroscopy, etc. The supercapacitors with this complex show good electrochemical properties in specific capacitance, cycling performances.