The present disclosure relates to an overcurrent protection system for a vehicle whereby an electrochemical cell provides an interface between an inverter and a DC-DC converter. One or more sensors are operatively connected a terminal of an electrochemical cell for determining a current therethrough, and a switch is operated to enter a second state whereby a conductive path through an electrical terminal of the electrochemical cell is interrupted in dependence on a measured current. The present disclosure also relates to a vehicle.
