Double-Layer Specific Capacitance Characterization Using Two-Electrode Test Cell

2 Double-Layer Specific Capacitance Characterization Using Two-Electrode Test Cell 

The other difference is that the capacitance obtained using CVs recorded by the two-electrode test cell involves contributions from both electrodes, rather than only from one. If the two electrodes are not identical, the better approach is to use the three-electrode cell for measurement to obtain data about the individual electrodes. In the case of a symmetric cell where two electrodes are identical, the capacitance (Cj.) measured by a CV can be expressed as the two capacitances connected in series  

In the case of the symmetric two-electrode cell measurement. Equations (7.8) and (7.11) can be alternatively expressed as  

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