If we’re trying to make the world a greener place, moving away from alkaline batteries might be the first step. That might be easier now that there are people developing wooden batteries.
Liangbing Hu and Nicholas Weadock from the University of Maryland are working on a “wooden” battery. Their idea is to use natural fibrous structures present in the tree to excite charged particles and create an electrical current.
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The batteries also replace the commonly used lithium with sodium. Since sodium is not as efficient at holding charge you won’t find these batteries used in cellphones but they could prove to be useful in storing large amounts of energy from sources like the sun and wind. Read more…