3 ms·
The most interesting thing about capacitors, in my opinion, is that they can be charged extremely quickly. If you could recharge your battery in 30 seconds, it
by alwaysdoit 13y ago
The most interesting thing about capacitors, in my opinion, is that they can be charged extremely quickly. If you could recharge your battery in 30 seconds, it wouldn't actually need to last that long. Charging your batteries could be something you do a couple times a day, like going to the bathroom.
- barking 13y agoCharging quickly would be great, but having to do so frequently would be a pain. You need access to a powerpoint, what if you are on a day trip? Wherever people lay their head at night they'll almost always have access to a power socket and therefore 24 hours is the minimum acceptable duration a full charge should last.
- weland 13y agoOn the other hand, that comes with high charging current. This isn't an issue for pocket batteries, but for really large ones, it's not as pretty.
- moconnor 13y agoExtremely quick discharge is probably more interesting, for a certain kind of interest. Near-instantaneous discharge of a couple of kJ into your skin (or wedding ring) would be pretty dramatic.
- rorrr2 13y agoSo would burning gasoline on your skin. So what?
- JoeAltmaier 13y agoDepending on the rate: Batteries could actually be bombs, where gasoline has to mix with air first. No oxidizer needed with batteries - just drive a nail through one, or smash it up as in an accident, and boom!
- rorrr2 13y agoI haven't heard of any exploding batteries (only burning ones), but I've seen tons of dashcam videos with gas tanks exploding on impact.
- JoeAltmaier 13y agoWe haven't seen any graphene battery failures yet at all! The article says they charge/discharge as supercapacitors. They will have a failure scenario more like Boom! than Flameout!