What if i invented a 500kmah battery the size of a screenguard

Random thought I’ve been obsessing over: What if we could make a phone/pc battery that’s 500,000mAh, but as thin as a screenguard, and charges 0-100% in 5 seconds? For contrxt: Your phone now is 5,000mAh and takes 30min to charge. This would be 100x bigger, charge 360x faster, and last 100+ years. Charge it once, your greatgrandkids inherit it. How? Not lithium. JUST quantum dots & graphene. Basically trillions of microscopic “electron parking spots” in . No chemistry, no fire, no wear. Charges fast because electrons just teleport in. Biggest problem isn’t the battery — it’s the charger. 5s charge needs like 1.3MW. So realistically you’d need a monster cable, but the battery itself could take it. I know it sounds sci-fi, but every piece of it exists in labs at tiny scale. Just needs someone crazy shi to scale it up.

this is called ssqd "solid state quantum dot supercapacitor" and it was created by Prof. Sang-Young Lee at KAIST, 2019

but there's no battery like that.. so the battery idea is mine :devil

I'd buy it

what if it explodes?

yeah about that 👉👈 if it goes kaboom... battery = 2g, 500kmAh @ 3.85V = 1,925Wh = million Joules. you'll get an explosion equivalent to of tnt 😳😖

of tnt*

tons

thats so cool, but how would you pack so much energy in one thing

it's called ssqd.. solid state quantum capacitor. it contains compressed electrons..

cool!

That’s a wild idea, but honestly the charging power alone would be insane, like you said the infrastructure would be the real bottleneck more than the battery itself.

It’s cool, though, because a lot of “impossible” concepts start exactly like this before getting scaled down into something practical.

Also reminds me of how many inventors end up looking into Invent Help reviews when they want to take early-stage ideas further. Most concepts obviously don’t go sci-fi level like this, but it shows how people try to bridge that gap between idea and real-world prototype.

Fun thought experiment though, even if it’s way beyond current tech.

your battery would likely explode from filling to max capacity so fast