Seems interesting.

A big take away is that you can store a house's daily use of energy with the equivalent of a 9ft x 9ft cube of the stuff, and since it's still load bearing concrete, they say you could use it in a house's foundation without issue, giving basically every house a built in daily battery.

They also talk about integration into the base of wind turbines where they currently just have structure concrete, so this would be a built in energy store.

No where near as energy dense as current batteries, but insanely cheap and ubiquitous, it scales without issue in any direction, and is well suited to "grid style" electrical loads.

At a claimed energy density of 0.22kWh/m^3 I think their projection of storing enough for an entire household is overly optimistic.

My whole foundation for a 2 story 200m^2 house is about half the 45m^3 they claim is needed for a household.

Sounds promising but it won’t be replacing batteries any time soon.

God, i wish my house used 10kwh of power per day. During winter that is more like 20 and during summer it can go as high as 30. We are doing projects to improve that, vut its a slow process with financial constraints.

There's always a hook or some reason why this is optimistic, but I can't see it yet. They mention foundations and roads, but I'm wondering where else it could used. I don't think it would make sense to just fill an entire cave with this and "charge" the cave, would it?

I was worried about structural integrity, but they seem to address this. The self-assembling mechanism is a very cool discovery here!

Another interesting application for this as a structural material is that I'm not sure you'd need conduits? Like a block-house made mostly of this material, you could just put sockets directly into the concrete, and then hook the whole building up to the grid. I presume you'd need sturdy, well insulated walls to prevent accidents, haha.

Actually, would a box made of this (a parking garage say) act like a Faraday cage?

Now you won’t just have a crack in your foundation, you’ll have a total loss of power and an open battery with thousands of watts of power ready to arc to any conductive material nearby.

Also, isn’t the biggest issue with super capacitors their discharge rate? A capacitor stores energy very briefly and will dump it extremely quickly into whatever circuit it’s connected to, that doesn’t sound ideal for energy storage over multiple hours or days.