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World's smallest working fuel cell developed
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Written by Danrok   
Friday, 23 January 2009 09:19

From Reg Hardware:

The world’s smallest working fuel cell has been created. It measures a paltry 3mm across.

A researcher at the University of Illinois, where the 3 x 3 x 1mm hydrogen-fuelled “micro fuel cell” was developed, said it’s able to generate power without consuming any itself, according to a New Scientist report.

Inside the fuel cell, a thin porous membrane separates a water reservoir from another containing metal hydride, below which is an arrangement of electrodes. Water molecules pass through the membrane as vapour and then react with the metal hydride to form hydrogen.

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