Ions

Electrolyte ions

Organic electrolyte conductivity

Solvent Polycarbonate, Acetonitrile (PC, AN)

0.5 – 2.5 M salts concentration

Quaternary Bore or phosphonium BR₄^- , PR₄^-

Quaternary ammonium R₄N⁺

Electrode capacitance decreases with the increase of the ion size

Tetraethyl - ammonium- tetrafluoroborate

Negative electrode	Positive electrode
Diameter = 700 pm	Diameter = 460 nm

Negative ions can go closer from the electrode => higher capacitance.

This is confirmed by cyclic voltammetry

« Electrolyte » resistance as a function of the salt concentration in AN

Conductance in mho being the reciprocal of resistance in ohms, mho is ohm spelled backwards!

mho/cm = ohm^-1cm^-1 = Siemens cm^-1

Source: Garmanage: Roland Gallay