It’s 100kph

Who the hell would think that a 1s battery charging time with a racing car would make any sense at all?

Pit stop times matter, and supercapacitors exist.

I'd love to watch that race, especially if the cars were sucker cars like the one in the article, and the drivers got to wear high-G fighter jet suits.

The best supercapacitors apparently have 20x the energy density of the best batteries. Apparently, self-discharge can be as low as 20% per day, which rounds to zero for racing. They only cost 10x more than lithium batteries, which again, for racing rounds to zero. Discharge current blows lithium-ion so far out of the water that I couldn't find a rule of thumb ratio.

https://supercaptech.com/battery-vs-supercapacitor/

edit: I had the energy density backwards; supercapacitors are at 10% the density of lithium ion. Still, the other advantages stand. I wonder how hard it would be to add an inductive charger to a straightaway...

> The energy density rating of the average supercapacitor is between 2,500 Wh per kg and 45,000 Wh per kg.

That's from your source, and those numbers are entirely made up. The Wikipedia article for supercapacitors lists a more normal 1.5 Wh/kg to 260 Wh/kg (with only one research nanomaterial going above 15 Wh/kg). No commercial supercapacitor has a higher energy density than a standard lithium ion battery.

Edit: The absurdly fast charging speeds would make for some fun pit stops, though

> Pit stop times matter, and supercapacitors exist.

Imagine a pit "stop", where you keep your speed to 300km/h/200mph, and you have your on-board supercapacitor charged in 1 second, using a power transfer system borrowed from electric trains.

0 to 100% fully charged in less than one second?

Nah, this thing is electrical. And in order to get that kind of power you're going to need plutonium.

That sounds a lot more dangerous than 0 to 100km/h.

But 100mph (or kph) is also a way to describe charging speed.