Systems and methods for electrochemical surface area retention using hydrogen crossover

摘要

Systems and methods for electrochemical surface area retention of fuel cell catalyst using hydrogen crossover are disclosed. One fuel cell system embodiment comprises a fuel cell including an anode having a fuel gas supply and a cathode having an air supply and a controller. The controller is configured to detect a high voltage condition in the fuel cell and increase hydrogen partial pressure in the cathode when the high voltage condition is detected.