Plant root used to create eco-friendly lithium-ion battery
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Researchers have used a dye extracted from the root of the madder plant to develop a new "green" lithium ion battery (Photo: Carstor via Wikimedia Commons)
(1) Pristine purpurin and (2) Chemically lithiated purpurin at a 1:2 ratio
Article Summary
Researchers have found an eco-friendly alternative to the metal ores currently favored in the electrodes of lithium-ion batteries. The new non-toxic and sustainable battery uses purpurin, a red/yellow dye extracted from the root of the madder plant that has been used for dying cloth for at least 3,500 years – meaning the substance can simply be grown rather than mined.
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