News Picks : Storage capacitors made from hemp fibers

By: Physics Today
13 August 2014

BBC: David Mitlin of Clarkson University in New York and his colleagues have made supercapacitors—energy storage devices that can charge and discharge quickly—from an unlikely material: the fibrous inner bark of hemp plants. Hemp, which lacks the hallucinogenic properties of its cousin, cannabis, is grown worldwide as a textile crop. The inner bark is usually discarded during milling. Mitlin found, however, that the bark's fibers can be processed to create thin, carbon-rich layers that function as efficient cathodes. When combined with an electrolyte, the hemp-based cathodes form capacitors that can sustain power densities up to 20 kW/kg.


Submit comment
Comment moderation successfully completed
This is a required field
Please enter a valid email address

Oops! This section does not exist...

Use the links on this page to find existing content.

e0bf90919b92373893d51373e6a49b70 weblog.blogpostzxybnytfddd
Scitation: News Picks: Storage capacitors made from hemp fibers