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What is a fuel cell?

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A fuel cell is much like a typical battery. A battery provides energy to run watches or start cars because a chemical reaction occurs and energy is released in the chemical reaction. This energy turns the hands on your watch or starts your car. The main disadvantage to a battery is that, one day, it will die. A fuel cell is different because the ingredients needed for the chemical reaction, hydrogen and oxygen, are not stored in the fuel cell until they "run out" but instead, are continuously pumped into the fuel cell. One fuel cell typically creates only a small amount of power, so fuel cells are stacked together to create enough power to operate a car or even a bus.



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