A significant challenge for energy storage technologies is to realize battery-level energy density and capacitor-level durability and
power density in one device. By introducing an electrolyte composed of an anionic catholyte and a cationic anolyte into a symmetric
carbon-based supercapacitor configuration, a hybrid electrochemical battery-supercapacitor system using soluble redox species...
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, D. Xiong, and J. R. Dahn, J. Electrochem. Soc., 158, A1136
(2011).
7. A. J. Bard and L. R. Faulkner
Electrochemical double-layer capacitors exhibit high power and long cycle life but have low specific energy compared with batteries, limiting applications. Redox-enhanced capacitors increase specific energy by using redox-active electrolytes that are oxidized at the positive electrode and reduced at the negative electrode during charging. Here we report characteristics of several...
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of Co(bpy)32+/Co(bpy)33+ was measured to be ~0.08 V vs. SCE.
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Electrochemical double-layer capacitors exhibit high power and long cycle life but have low specific energy compared with batteries, limiting applications. Redox-enhanced capacitors increase specific energy by using redox-active electrolytes that are oxidized at the positive electrode and reduced at the negative electrode during charging. Here we report characteristics of several...
Full Text:
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