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Troublesome green algae serve as coating substrate in record-setting battery
Date:9/10/2009

character and was initiated in collaboration with chemist professor Leif Nyholm. Cellulose pharmaceutics experts, battery chemists and nanotechnologists have all played essential roles in developing the new material."

The article in Nano Letters, in effect, introduces an entirely new electrode material for energy storage applications, consisting of a nanostructure of algal cellulose coated with a 50 nm layer of polypyrrole. Batteries based on this material can store up to 600 mA per cm3, with only 6 per cent loss through 100 charging cycles.

"This creates new possibilities for large-scale production of environmentally friendly, cost-effective, lightweight energy storage systems," says Maria Strmme.

"Our success in obtaining a much higher charge capacity than was previously possible with batteries based on advanced polymers is primarily due to the extreme thinness of the polymer layer," says Gustav Nystrm.


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Contact: Maria Stromme
maria.stromme@angstrom.uu.se
46-701-679-104
Uppsala University
Source:Eurekalert

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