Gas2 - Green Cars that Don't Suck
Super-capacitors can store and release electricity like a battery, but
can be recharged in seconds instead of hours. At the moment, they are
usually made from graphene, a
man-made super material that is 100 times stronger than steel by
weight, conducts electricity better than copper, and is more flexible
than rubber. Unfortunately, graphene is very costly to produce. A team
of researchers led by David Mitlin at Clarkson University in New York
have found a way to produce super-capacitors from an inexpensive hemp
fiber left over from textile and building material construction that
could pave the way for a mainstream super-capacitor.
http://gas2.org/2014/08/25/hemp-based-super-capacitors/
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