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Fuel Cells

Fuel Cells: Continuous Energy Without Combustion

Fuel cells produce electricity directly from the electrochemical reaction between hydrogen (from a hydrogen-containing fuel) and oxygen in the air. The process creates little or nothing by way of emissions, because no burning or combustion takes place. The only by products from the electrochemical reaction are water and useful heat. A fuel cell is like a large, continuously operating battery.


Fuel cells have been in use for decades in the U.S. space program, providing electricity for spacecraft. Now researchers are making rapid progress in adapting them for commercial use to produce electricity and to power cars and trucks.


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