电解质
超级电容器
电池(电)
氧化还原
电容
储能
离子
电容器
材料科学
功率(物理)
化学
无机化学
化学工程
电气工程
电极
电压
工程类
物理
有机化学
物理化学
量子力学
作者
Yuan Wang,Zheng Chang,Meng Qian,Tianquan Lin,Fuqiang Huang
标识
DOI:10.1016/j.cej.2019.122054
摘要
Capacitor-like and battery-like energy storage characteristics can be incorporated into a single cell to achieve optimal performance metrics through adding dual redox-active ions Bi3+/Br− to electrolyte. By adding dual redox-active ions to traditional electrolyte of carbon-based supercapacitor, redox reactions occur at each electrolyte/electrode interface simultaneously to store energy, exhibiting significant charge and discharge platforms which are battery-like energy storage characteristics. Moreover, a specific capacitance of 1150 F/g and an energy density of 61.8 Wh/kg are achieved at 2 A/g, surpassing most of the state-of-the-art work.
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