(684a) Time Resolved Ion Dynamics in Carbon Supercapacitor Electrodes Using In Situ Infrared Spectroscopy

Authors: 
Elabd, Y. A., Drexel University
Gogotsi, Y., Drexel University
Dyatkin, B., Drexel University



Ion transport in energy storage devices (e.g., batteries, supercapacitors) is the fundamental process that dictates charge/discharge rates. However, there are few experimental techniques that can measure molecular level ion transport in response to an input voltage. In this study, we apply a novel in situ infrared spectroscopy measurement technique to investigate ion transport in carbon electrodes of electrochemical double layer supercapacitors. Ion transport properties of porous nano-sized carbide derived carbons (CDC) were compared to non-porous carbon onions for both pure ionic liquid electrolytes and mixtures of propylene carbonate and ionic liquid.

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