University researchers in Texas are developing a nontoxic leaching solution to recover cobalt and lithium from end-of-life batteries.
Two Rice University scientists have formulated a solvent that can extract material from the cathodes used in lithium-ion batteries.
The solution is termed a “deep eutectic solvent” and is made from choline chloride and ethylene glycol.
It has been shown to recover a “significant” amount of cobalt from used batteries, according to a university release.
https://resource-recycling.com/e-scrap/2019/04/17/mild-solvent-extracts-cobalt-from-batteries/
