Form Energy, a company that says it's Iron-Air grid batteries that can hold charge for 3-5 days, and at a tenth of the cost of Lithium-Ion batteries, has received $450 million in funding to go commercial. The batteries are based around rusting and de-rusting cheap iron pellets.

Submitted by lughnasadh t3_xxxauu on October 7, 2022 at 12:02 PM in Futurology