this post was submitted on 04 Aug 2023
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Plan to commercialize supercapacitors in the next few years

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[–] [email protected] 13 points 1 year ago* (last edited 1 year ago) (6 children)

A solution that is inexpensive, scales, is not inconvenient, and fits household demands? What's the catch?

I hope it's as good as it sounds and becomes a thing.

[–] [email protected] 4 points 1 year ago

One of the big catches is how Greenhouse gas intensive concrete production is

[–] [email protected] 4 points 1 year ago

I mean, there's a reason why we've taken so long with even electric cars lol I hope this becomes a reality, but moneyed interests will fight tooth and nail.

[–] [email protected] 3 points 1 year ago (1 children)

The team worked out that a 45 cubic meter material block of nanocarbon-black-doped concrete would have enough capacity to store about 10kWh

10kWh is enough to run a house for a day, how much concrete would be in a house with concrete walls?

[–] [email protected] 1 points 1 year ago

I wonder if the foundation of the house would be convenient for this… that much concrete is equivalent to a cube of side length around 10 feet, which seems to at least be in the ballpark for the total amount of concrete in a foundation. I think?

[–] [email protected] 1 points 1 year ago

The catch is, if it works some oil company is gonna buy it out and kill it.

[–] [email protected] 0 points 1 year ago (1 children)

One catch is that carbon black is mostly made from fossil oil.

[–] [email protected] 3 points 1 year ago

It's more nuanced than that. The question is whether we're just using carbon black that's already an excess byproduct of other industries, or we'd be actively producing it to make these wall batteries.

[–] [email protected] -2 points 1 year ago

The last time this news was posted everyone tore into it. I don't remember the details, but it was funny.

It's just not feasible in reality.