[rlmorel]

I am all for it. Anything that can increase large scale energy storage is helpful, and I don’t have to be a stinking greenie virtue signaler to benefit from it.

[ConservativeInPA]

Just burn coal.

[Chode]

and if it catches fire, it’ll be epic...

[woodbutcher1963]

“Converting back and forth between iron and rust allows the energy that is stored in the battery to be stored longer than conventional batteries.”

Who knew, we had junk yards all across the US making electricity all this time.

[bak3r]

100 hours without wattage context is useless. 1 megawatt without a time context is useless. Do they actually make batteries?

[Fungi]

More fanfare about a non existent problem.

[CodeToad]

AGM batteries already deliver this level of efficiency and cost.

[PGR88]

what do they use for anode and cathode material?

[Noumenon]

Go local with Iron Edison

[Empire_of_Liberty]

In my opinion, any “battery” that uses oxygen, from the atmosphere, is NOT a battery.

This thing is going to pollute, if it works at all.

[Revel]

“one that can feed electricity to the grid for approximately 100 hours”

That is why one should suspect that this story is fake. Time without power is meaningless nonsense. Notice that your electric bill uses Kilowatt Hours. A 9volt battery could feed energy back to the grid for 100hours if the current was low enough. Of course it would contribute nothing of value.

Those who make false claims are often not even bright enough to use the proper terms.

[Dr. Sivana]

uses it to convert iron inside the battery to rust, later converting it back to iron again.

Energy? Heck, I would have paid good money for any system that can turn the rust on my old Mopars back to iron.

[krogers58]

The statement that it can supply power for 100 hours is meaningless. Batteries’ capacity is measured in amp-hours. So, if you have a 12 volt battery with a 100 amp-hour rating, you don’t have all that much. If you could drain all of the energy from the battery, which is impossible, you’d have a battery that could deliver 1200 watts, for 1 hour. About enough to run 12 - 100 watt light bulbs. Or 1 - 100 watt bulb for 12 hours.

[SuperLuminal]

Too late...
Cold fusion is just days away...

[kvanbrunt2]

I think they make some great boat batteries.

[6ppc]

What is an air electrode???

[blueplum]

I read this article yesterday and still don’t understand: how does rusting create energy storage?

[Two Kids' Dad]

Hey, I just want something that’ll supply steady power to my private island and my electric 4x4 vehicles to get around it. Oh, and I want enough money to buy the aforementioned. 😁

[minnesota_bound]

Look at the photo above and imagine the fire when a short happens!

No way to put it out.