Dead batteries cough up lithium after a bath in CO₂ and water, boffins say

Still or sparkling? Either way, the problem of scale remains

Lithium-ion batteries are everywhere, and recycling them cleanly and safely at scale is still hard. Now, a Chinese research team claims to have discovered a way to recycle Li-ion batteries using carbon dioxide and water. Just don't expect it to revolutionize the market overnight.…