Quantum entangled batteries could be the perfect power source (devices)

[Brian.Pearson]

Two European theoretical physicists have shown that it may be possible to build a near-perfect, entangled quantum battery. In the future, such quantum batteries might power the tiniest of devices — or provide power storage that is much more efficient than state-of-the-art lithium-ion battery packs.

[harry chickpea]

"In theory, according to Alicki and Fannes, it should be possible to build a quantum battery that is full of energy-rich quantum states — and then, somehow, recharge it when you run out of juice."

Reminds me of the old cartoon with the solution to everything, including the creation of the universe, where the key info on the chalkboard is a parenthetical statement... (and then a miracle happens).

[harry chickpea]

Just ran across this again and wondered if it continues to be a complete pipe dream?

[turf3]

Well, I don't know actual statistics, but I would guess that the success ratios look like this:


(Appears to work on paper) : (actually works at a small one-off scale in the lab) = 100:1


(Actually works at a small one-off scale in the lab) : (works at an actual usable scale in the lab, one-off, cost no object) = 100:1


(works at a usable scale one-off cost no object) : (real world cost-effectiveness appears useful) = 100:1


(real world cost-effectiveness appears useful) : (actually reaches commercial mass production) = 100:1


Now multiply each of these steps of proving-out times the number of years it takes, and you'll have some idea why nine years isn't enough.


I would also point out that if a new energy storage concept is truly the unicorn (more efficient, lower cost, high capacity, reliable), it will not long remain an obscure article in the back pages of a technical journal, but rather it'll become the subject of massive investment capital and attempts at commercialization, very quickly.

[rjshae]

How do they prevent the high-energy quantum states from just collapsing and emitting photons within a fraction of a second? They're a little vague on that.