4. Conductivity measurements and transport numbers

4.1 Conductimetry

The classic principle is to measure the resistance of the electrolyte in a known geometry, by calculating the ratio between the amplitude of the electrical voltage, measured at the terminals, and the intensity of the current flowing through the material. The choice of geometry is therefore important (see § 4.1.1). In the case of an electrolyte, measurement is complicated by the nature of the device, which must integrate not only the material itself but also two electrical connections, the electrodes, which introduce...