Complex sentence: When driven by an external voltage applied to the electrodes, the electrolyte provides ions that flow to and from the electrodes, where charge-transferring, or faradaic, or redox, reactions can take place.
Split into simpler sentences: When driven by an external voltage applied to the electrodes, the electrolyte provides ions that flow to and from the electrodes. At the electrodes charge-transferring, or faradaic, or redox, reactions take place.