超级电容器
电解质
水溶液
电化学
材料科学
电容
活性炭
锂(药物)
碳纤维
乙二醇
无机化学
化学工程
碳纳米管
化学
电极
纳米技术
吸附
有机化学
复合材料
复合数
物理化学
内分泌学
工程类
医学
作者
Alexander J. Roberts,Angela F. Danil de Namor,Robert C. T. Slade
摘要
Birnessite nanotubes and activated carbon electrodes have been used in supercapacitor cells to assess the performance of new aqueous based electrolyte systems at temperatures as low as −30 °C. The addition of ethylene glycol to aqueous sodium, lithium, potassium and ammonium sulfates has resulted in electrolytes that are still in liquid phase at such low temperatures. Extensive electrochemical testing showed that in such systems, operation of these aqueous based supercapacitors is possible at −30 °C with a specific capacitance of over 30 F g−1 and good cycleability.
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