New Iron-Air Battery outperforms best Lithium Ion tech. Cheap. Abundant. Non-toxic & Carbon Free

Iron Air batteries use cheap, nontoxic, abundant materials and potentially have a far higher energy density than Lithium-Ion batteries. The technology was first developed by NASA in the seventies, but no major commercial application has ever come to fruition. Now though, a US company, backed by some pretty big investors, has developed a grid-scale iron air battery that could be a real industry disruptor.