PHYS.ORG - December 11, 2012
"More than 3,500 years ago, civilizations in Asia and the Middle East first boiled madder roots to color fabrics in vivid oranges, reds and pinks. In its latest technological incarnation, the climbing herb could lay the foundation for an eco-friendly alternative to traditional lithium-ion (Li-ion) batteries..."
Read more at:
http://phys.org/news/2012-12-ancient-red-dye-powers-green.html#jCp
Interesting.
Greener is
better when it comes to batteries, I would think. Wonder what
DCFusor, et al, thinks about this?
--RCB