Knowledge BaseCapacitive current

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Capacitive current

Capacitive current is short for capacitve charging current or better charging current of a capacitor. A capacitor is an electronics component that stores charge depending on the potential applied to it.

The charged surface of an electrode and the ions in the solution attract each other and form two separated layers of charge at the electrode solution interface. These two layers act as a capacitor. So there are now two ways how current can flow through the cell. The capacitive charging current and the Faraday current.

A more detailed view is available in the knowledge base article about capacitive current.

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Capacitive Current

If the potential of the electrode is changed, for example during a potential step, the amount of charge the capacitor stores changes, and a current will flow that has no chemical but only a physical meaning. This is the current that charges or discharges the capacitor also known as capacitive charging current or short capacitive current.

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