Self-Charged Graphene Battery Harvests Electricity from Thermal Energy of the Environment.
We heard a rumor that graphene patent applications have gone through the roof.
Now we know why...
This is some big stuff, we suggest you keep your eye on the graphene field. We don't want to just repeat what these others have gone through all the hard work of explaining, so below is the source article and below that is the technology review. The future is cool! We love renewable, clean energy!
Source: Cornell University Library:
Technology Review: http://www.technologyreview.com/view/427140/graphene-battery-turns-ambient-heat-into-electric-current/