Beneficial Effects of a Li Salt on Electrode Behavior in an Ionic Liquid for Electric Double Layer Capacitors
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概要
- 論文の詳細を見る
Origins of cathodic stability of an ionic liquid electrolyte, 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) containing lithium tetrafluoroborate (LiBF4), are investigated mainly by applying electrochemical impedance spectroscopy for a glassy-carbon electrode interface. Its Helmholtz layer capacitance in the EMIBF4 electrolyte containing Li+ becomes much higher than that in neat EMIBF4 with increasing cathodic polarization. On the basis of such analyses as well as our hypotheses, a reasonable mechanism for the stabilizing effect induced by the Li salt addition is discussed.
著者
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Ishikawa Masashi
Department Of Applied Chemistry And Chemical Engineering Faculty Of Engineering Yamaguchi University
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Tanaka Rie
Department Of Applied Biological Science Faculty Of Agriculture Tokyo University Of Agriculture And
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TANAKA Rie
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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FUKUDA Yasutake
Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University
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