Iron-air batteries: storage at 1/10 cost of Li-ion

[ergophobe]

Not for cars, but grid-scale batteries
https://www.rechargenews.com/energy-transition/worlds-cheapest-energy-storage-will-be-an-iron-air-battery-says-jeff-bezos-backed-start-up/2-1-1044174

Side note... Bezos has a rocket company, a satellite internet company and a battery company. Doesn't he need an electric car company and a tunnel-drilling company?