How do fuel cells differ from traditional electrochemical cells (batteries)?

Question

Quizplus · Accepted Answer

Fuel cells differ from traditional electrochemical cells in that the supply of reactants (usually hydrogen and oxygen) is continually renewed, allowing for continuous energy production. In contrast, traditional batteries have a finite supply of reactants, which are consumed over time, leading to the eventual depletion of the battery's capacity. Fuel cells are also able to operate at higher efficiencies and with lower emissions than traditional combustion-based power sources.

How Do Fuel Cells Differ from Traditional Electrochemical Cells (Batteries)