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Smallest Hydrogen Fuel Cell |
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Smallest Hydrogen Fuel Cell Scientists at the University of Illinois have developed a hydrogen fuel cell that measures 3 millimeters across. The cell uses just four components - a water reservoir and a chamber containing metal hydride, separated by a thin membrane with an assembly of electrodes that conduct electricity underneath.The cell is so small it does not require a pump, pressure sensor, and controlling electronics that create a power drain in normal fuel cells. The first cells generated some 0.7 volts and a current of 0.1 milliamps for 30 hours. New versions should be able to produce 1 milliamp at a similar voltage.
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Hydrogen Gas > Smallest Hydrogen Fuel Cell |