Since constant-phase components can be regarded as imperfect capacitors, when the frequency approaches zero, the impedance caused by the CPE approaches infinity, which can be regarded as an open circuit.
Since a constant phase assembly can be considered an imperfect capacitor, the impedance caused by CPE is close to infinity when the frequency is close to zero, which can be considered an open circuit.
Since the constant phase element can be regarded as an imperfect capacitor, when the frequency approaches zero, the impedance caused by CPE approaches infinity, which can be regarded as an open circuit.