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New type of hydrogen fuel cell powers up - TechAmok
New type of hydrogen fuel cell powers up - [technology] 10:58 AM EDT - Sep,24 2006 - post a comment Two chemists at the Arizona State University,
Don Gervasio and Sonja Tasic, have developed a new hydrogen-based fuel cell
they say could achieve more than ten times the energy density of conventional
lithium-ion batteries found in notebooks and other portable devices:
The borohydride solution releases its hydrogen as it flows over a catalyst made of ruthenium. The hydrogen passes through a membrane and combines with oxygen in the fuel cell, generating electricity and waste water. Theoretically, this could achieve an energy density up to about 2200 watt-hours per litre Gervasio says, compared to 200 watt-hours per litre for a lithium polymer battery.
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