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Environment & Energy

eppur_se_muova

(42,899 posts)

2. Wish they'd give more technical details, instead of dumbing it *all* down.

Reply to OKIsItJustMe (Original post)

Tue Jun 23, 2026, 05:41 PM

13 hrs ago

It sounds like a metallic iron - Fe2O3*xH2O system. But there are other oxidation states for Fe, including Fe(VI), which is only stable at high pH, but could conceivably pack a very high energy density. I know there has been research on this, but haven't heard of any progress in years. Fe also has a (IV) state, surprisingly found in the common mineral pyrite (FeS2).

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Europe is betting big on a battery that runs for four days [View all] OKIsItJustMe 14 hrs ago OP

On a smaller scale you might look into multigraincracker 14 hrs ago #1

Wish they'd give more technical details, instead of dumbing it *all* down. eppur_se_muova 13 hrs ago #2

I'm confident he has published a paper (or papers) but it looks like he's been working on this for a while OKIsItJustMe 12 hrs ago #3

I found this Finishline42 11 hrs ago #4