Wouldn’t it be great to never have to pack your mobile device charger again? In fact, what
if your mobile device didn’t even use a battery, and instead would run several days on a
few drops of alcohol?
Fuel cells seem like an excellent power source, cheap to build, requiring no toxic metals,
and having the ability to “ charge ” in a matter of seconds. Even perhaps more amazing
is their effi ciency given there size and weight. Most micro-fuel cells in development
are from two to fi ve times more effi cient at producing power for their size than even the
super-effi cient ...
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