  We perform molecular dynamics simulations of a typical nanoporous-carbon
based supercapacitors. The organic electrolyte consists in
1-ethyl-3-methyl--imidazolium and hexafluorophosphate ions dissolved in
acetonitrile. We simulate systems at equilibrium, for various applied voltages.
This allows us to determine the relevant thermodynamic (capacitance) and
transport (in-pore resistivities) properties. These quantities are then
injected in a transmission line model for testing its ability to predict the
charging properties of the device. The results from this macroscopic model are
in good agreement with non-equilibrium molecular dynamics simulations, which
validates its use for interpreting electrochemical impedance experiments.
