Aluminum to the rescue! for safer batteries!

https://scitechdaily.com/cheaper-safer-and-more-powerful-batteries-aluminum-materials-show-promising-performance/

iron and saltwater redox flow battery from ESS, video from just have a think

iron and saltwater redox flow battery from ESS, video from Just have a think, https://youtu.be/XZ4GlcVCU6E?si=CmW2EswWlhD1Ggv9