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May 22, 2018  |  Login
Fuel Cell

A fuel cell creates energy like a battery, but never runs out or needs charging. There are many kinds of fuel cells, which use different alternative fuels and operate at different temperatures. All fuel cells use hydrogen and oxygen to produce electricity, and emit only a small amount of water and zero pollution. A single fuel cell produces very little electricity, thus anything powered by a “fuel cell” typically contains stacks of hundreds of individual fuel cells.

Polymer electrolyte membrane fuel cells, or PEMs, are the most efficient for building fuel cell vehicles because they run on pure hydrogen fuel and operate at low temperatures. Fuel cell cars are also almost silent, because they do not have engines like typical cars. Fuel cells can also provide stationary electricity and heat, and power portable electronic devices such as laptops and cell phones.

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For fuel cell use at home, check out ecomii's Green Building section.

Find out how fuel cells work and what they are being used for today.

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