The rectification ratios (RI and RII; Equation S1 and S2 respectively), measuring the ability of the CAPode to rectify the current response under "open" and "blocked" polarization, are considered as the main criteria controlling the applicability of the CAPode as an iontronic device. In addition to the aforementioned factors, also the current at 0 V is considered as an for RI, but a different calculation method was used. 10c Specifically, their calculation involves the ratio between the summation of absolute charging and discharging currents under "open" polarization at the same time and the current summation under "blocked" polarization. While this represents an alternative approach to calculate the rectification of a CAPode device, including both charging and discharging currents simultaneously does not provide a direct indication of the device's actual rectification performance.