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A “Reversible Rust" Battery That Could Transform Energy Storage (clearpath.org)

submitted 1 year ago by TiredSpider to c/energy

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[–] keepthepace 3 points 1 year ago

Google "Iron batteries" if you are interested in building some. This is a tech that is not super efficient in terms of Wh/kg but that is extremely cheap so it can make sense for a static powerwall-style installation. If only we produce it to scale. Exploring the automation of this process has been on my todo list for a while.

On the plus side as well (and kind of the reason why it is so cheap) is that it does not require any "exotic" material or rare earth. From what I heard (did not check personally, I have zero chemistry skills) there is one nasty chemical in the production process but it is reusable and does not need to be discarded.