Which mechanism limits hydrogen fuel cell performance below 0.6V at high current draw?

💡 Explanation

At high current draw, ohmic resistance in the fuel cell components (electrodes, electrolyte membrane, bipolar plates) results in significant voltage drop because of increased electron and ion flow, limiting performance. Therefore, ohmic resistance dominates, rather than catalyst poisoning, membrane drying, or electrode flooding which are significant at different operating conditions.

• Which outcome occurs when monochromatic light encounters closely spaced slits?
• Which outcome occurs when catalyst is absent from reactants?
• Which outcome occurs when an exothermic chemical reaction lacks sufficient activation energy?
• Which consequence results when extreme stellar mass induces spacetime curvature?
• Which effect results in a Bingham plastic when shear stress decreases?
• Which artifact impairs image quality in optical metrology systems that use holographic interferometry?