Imagine how fast and quick electric cars could be with these supercapicitors--they would have to outlaw them because cops could never catch them--even with a plane!

What about actual kW-hr capacity per mass? He says you wouldn't have to recharge your phone for a week, which would be more important to me than a fast recharge, but I think they need more specifics on this. But if you could run for a week off of a super-capacitor the size of a normal cell battery, this is potentially world changing. Electric cars would surely become mainstream with this type of storage system, although feeding it would now be a restriction, you can only pump so much juice through a line. I imagine it would have to be pulsed instead of a steady feed.

zr2s10: 'Energy Density' is normally expressed as Wh/kg (Watt-hours/kilogram) ... the Panasonic 18650 cells in the Tesla Model S are about 250 Wh/kg and (according to JB Straubel, Tesla CTO) the new 2170 cells for the Tesla Model ≡ are 30% higher ... ~ 325 Wh/kg.

Can we get some details, capacitors deliver power for a very short burst, even if they can be recharged 30,000 times. Imagine within a second, and recharged just as fast, that gives them a life span of 8.3 hours continuous use, maybe a couple of days if they aren't flexed so vigorously.

EcoLogical, thank you, I wasn't sure what they used. So yes, Wh/kg would be useful information for this device. I'll have to check and see if it's listed anywhere else.

@Bob Flint: I am pretty sure discharge speed of any capacitor can be slowed as much as needed by using special control circuitry (hint: electricity vs water analogy).

I could not find the Wh/kg stat. However, the UCF website (UCFtoday) quotes Nitin Choudhary, the postdoctoral associate who conducted much of the research, as saying “For small electronic devices, our materials are surpassing the conventional ones worldwide in terms of energy density, power density and cyclic stability,”

A but of math: A 1Wh battery/capacitor, charged in 1s, requires a 3.6kW charger. At 10V, it also requires 360A.

As a disabled person whose only form of transport is a mobility scooter, one of my frustrations is the 8 hours it takes to charge it. This would be life-changing for me - but how will the cost, size and weight compare to conventional batteries?

I wonder if this is the same young South Asian woman who received a youth science award? a year or two ago, for her breakthrough with a fast charging flexible mini superconducting battery. Surely. A truly remarkable young woman who has positively changed our world. What greater gift worthy of recognition than that of putting such power into peoples hands, the possibly most possibility facilitating phenomena beyond paradigm.