Flow field baffle for molten carbonate fuel cell cathode

A method for producing electricity in a molten carbonate fuel cell, the method comprising:

• introducing an anode input stream comprising H2, a reformable fuel, or a combination thereof into an anode gas collection volume, the anode gas collection volume being defined by an anode surface, a first separator plate, and an anode collector providing support between the anode surface and the first separator plate;
• introducing a cathode input stream comprising O2 and CO2 into a cathode gas collection volume, the cathode gas collection volume being defined by a cathode surface, a second separator plate, and a cathode collector providing support between the cathode surface and the second separator plate;
• and
• operating the molten carbonate fuel cell at a transference of 0.97 or less and an average current density of 60 mA/cm2 or more to generate electricity, an anode exhaust comprising H2, CO, and CO2, and a cathode exhaust comprising 2.0 vol % or less CO2, 1.0 vol % or more O2, and 1.0 vol % or more H2O, wherein transference is a fraction equal to carbonate ions transported across a molten carbonate electrolyte over total ions transported across the molten carbonate electrolyte,
• wherein the cathode gas collection volume is further defined by one or more baffles in contact with the second separator plate, the one or more baffles reducing an unblocked flow cross-section of the cathode gas collection volume by 10% or more.