Comment on New breakthrough may let us charge smartphones in 60 seconds
Umbrias@beehaw.org 3 months agoWhy do you feel that the researchers are wrong about their physics research?
Comment on New breakthrough may let us charge smartphones in 60 seconds
Umbrias@beehaw.org 3 months agoWhy do you feel that the researchers are wrong about their physics research?
sonori@beehaw.org 3 months ago
The researchers who wrote the paper only mentioned possibly applying the tech to very small things like wearables and Iot applications where a large capacitor might be relevant. It’s the journalist summarizing it that makes the wild claims about phones and cars, which don’t tend to use capacitors for a bunch of reasons, not least of which is that they tend to be physically twenty times larger than a given battery of the same capacity.
If people are able to deal with batteries anywhere near that large, then I’d imagine most of them would choose twenty times the battery life/ range over being able to charge fast enough overload a wall outlet/ small power plant.
Umbrias@beehaw.org 3 months ago
More of an actual comment, good. More efficient capacitors in both speed and heat certainly helps in charging devices of all sizes. Of course it wouldn’t be charging large batteries in seconds, but that doesn’t mean no improvement.
sonori@beehaw.org 3 months ago
No, it doesn’t effect devices of all sizes, only devices that might use this specific bulky capacitor, all other devices will show exactly zero improvement because there is no real point to mixing capacitors in with a large battery. Being able to quickly get three minutes of charge per whole hour of battery capacity you replace with capacitors just isn’t that useful because you might as well just stay plugged in for an extra few minutes and get the same charge plus that extra hour before needing to find a charger at all.
As for EV’s the problem is even more pointless, as being able to go a half mile the street from a charger massive enough that it can output a small power plants worth of electricity is similarly to specialized of a use case to be worth the loss of range and greater degradation of the rest of the battery.
Umbrias@beehaw.org 3 months ago
Almost every electrical system on the planet uses capacitors. Especially high power systems. Of which evs are.
“No real point in mixing capacitors in with a large battery” ?? That’s done literally all the time for both filtering and for intermittent high power output. Like when I say almost every electrical system uses caps, I mean almost every electrical system.