Electrical double-layer capacitors (EDLCs) are a unique type of high-power electrochemical energy storage devices, where the capacitance arises from the charge separation at an electrode-electrolyte interface. Recently, EDLCs have attracted considerable attention because of their high power density, sub-second charging and ultra-long cycle life, which make them attractive for a wide range of applications, including consumer electronics, uninterruptable power sources, energy efficient industrial equipment, power grid systems and most importantly hybrid electric vehicles. The energy storage in EDLC is based on the adsorption of electrolyte ions on the large specific surface area of electrically conductive porous electrodes, most commonly porous carbons. In the last three years our group has explored the performance of various micro- and meso-porous carbon materials, including zeolite-templated carbons, advanced activated carbons, mesoporous carbide-derived carbons, carbon nanotubes and others. This talk will provide an overview of the recent developments and will compare advantages and limitations of various carbon synthesis technologies and the most promising performance of porous carbons in aqueous, organic and ionic liquid electrolytes.

Nanoporous carbon materials for electrical double layer capacitors

245th National Meeting (2013)

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