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The impedance of electrochemical battery has been measured using a classical impedance-measurement apparatus to control the battery discharging into a constant load under current perturbation. This new method can be used even when the discharge current is greater than the maximum current that could be supplied by the regulation of the impedance-measurement apparatus used. Impedance measurements were...
An experimental method to measure the impedance of electrochemical batteries during discharge has been developed. The method uses classical impedance-measurement apparatus and current perturbation to control a battery discharging into a constant load. Impedance measurements were carried out on sealed Ni-Cd cells with a capacity of 0.65 Ah using the classical modulated-current method and the new...
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