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Technology
Fuel Cell
A fuel cell generates electricity through an electrochemical process in which the energy stored in a fuel is converted directly into DC electricity.
All fuel cells have the same basic operating principle; they consist of an electrolyte material which is sandwiched in between two thin electrodes (porous anode and cathode). The input fuel passes over the anode (and oxygen over the cathode) where it is split into ions and electrons by a catalyst. The electrons go through an external circuit to serve an electric load while the ions move through the electrolyte toward the oppositely charged electrode. At the electrode, ions combine to form water and CO2, depending on the input fuel and electrolyte, different chemical reactions will occur.
