There is also an iron air battery project in Minnesota: https://www.mprnews.org/story/2023/02/10/rusty-batteries-could-hold-key-to-carbonfree-power-future https

There is also an iron air battery project in Minnesota: https://www.mprnews.org/story/2023/02/10/rusty-batteries-could-hold-key-to-carbonfree-power-future https://www.mprnews.org/story/2023/02/10/rusty-batteries-cou...