Batteries made from slices of wood coated in tin could allow environmentally-friendly storage of huge amounts of energy.
The batteries are being tested at the University of Maryland and use sodium rather than lithium ions in their construction. This combined with the use of tin and wood would lower the cost of production.
By: Philippa Warr, Edited by: Kadhim Shubber
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2013-06/20/wood-batteries
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