ABSTRACT
Ionic liquids are room-temperature molten salts, composed mostly
of organic ions that may undergo almost unlimited structural
variations. They are currently under intense examination as poten-
tial electrolytes for future electrochemical systems [Armand et al. (2009)], as they present a number of highly appropriate properties
such as low vapor pressure, low combustibility, high thermal stabil-
ity, good ionic conductivity, and wide electrochemical windows. In
particular, it is worth underlining the case of electrical double-layer
capacitors (EDLCs), which have attracted much attention in recent
years [Simon and Gogotsi (2008)]. The discovery of nanoporous
electrode materials with enhanced performances when using an
ionic liquid with ion sizes matching the pore size opens the way for
a widespread use of supercapacitors in many contexts in which high
power electrical output is required [Miller and Simon (2008)].