Fuel cells are a promising alternative energy conversion technology. Most fuel
cells use hydrogen as a fuel which reacts with oxygen to produce electricity. Different
types of fuel cells are distinguished by the nature of the electrolyte. For
example, a solid oxide fuel cell (SOFC) contains a solid oxide electrolyte that
transports oxygen ions as shown in Figure
For each mole of hydrogen consumed, two moles of electrons are passed
through the electric load. Faraday’s constant is commonly used to relate number
of electrons and charge ( coulombs/mole of electrons). The objective of a fuel
cell is to deliver power to the load as shown in Figure