As battery use grows in EVs and elsewhere, there will be a stockpile of those discarded. Recycling the valuable materials in them would reduce the environmental impact of disposition in landfills as well as digging up new battery metals. Natural tea compounds can help regenerate lithium-ion battery electrode materials, paving the way for sustainable, low-cost battery reuse.
bioengineer.org/tea-polyphenols-boost-revival-of-retired-lifepo%e2%82%84-cathodes-a-green-energy-breakthrough/