Boosting the capacity of supercapacitors

Techxplore.com ^ | November 2, 2020 | by King Abdullah University of Science and Technology

[Red Badger]

Tech Ping!.....................

[SpaceBar]

If you take the idea of a capacitor e.g. storing energy in the form of an electric field and extrapolate to the atomic/molecular level you go full circle and end right back up with the lowly chemical storage battery.

[Red Badger]

The lowly chemical storage battery is slow to charge and slow to release energy into the load.

The capacitor is relatively fast at both.................

[al baby]

plus they go pop when you plug them into the wall outlet

[ASOC]

use the search string “super capacitor nano-particle” or “super capacitor graphene” for multiple recent stories of these devices.

Lots of progress made in recent years.

[BenLurkin]

[Robert A Cook PE]

Hmmm. From a Saudi University, a Saudi technical group?

Oil money not just buying medieval booty (cars,camels, horses, harems, hawks, horned knives) any more?

[Red Badger]

Politicians..................

[DannyTN]

Supersupercapacitators.

[Red Badger]

SuperDuperCapacitors!.................

[ShadowAce]

Tech Ping

[Robert A Cook PE]

Superdupercalifragileisticexplosivecapacitorus! /Birtish nanny

[dfwgator]

[the_Watchman]

But, as the article explains: “They have a weakness, however, in the relatively low quantity of energy that they can store, a property known as their energy density.”

The energy density disparity is huge for standard capacitors compared to physical batteries. You expect a battery to supply power for a matter of hours. Capacitors, on the other hand take on chores like taking the voltage ripple out of power supplies by charging and discharging over 100 times a second.

Even though these guys are improving the energy density, it is going to be a far cry from being able to supplant batteries for long haul operations.

[Red Badger]

https://www.powerelectronics.com/technologies/alternative-energy/article/21864122/supercapacitors-past-present-and-future

[RockyTx]

the electric car is a reality.
using regular chemical batteries

supercaps are not needed
nobody cares

[DUMBGRUNT]

“the electric car is a reality.
using regular chemical batteries

supercaps are not needed
nobody cares”

“The advancement of the arts, from year to year, taxes our credulity and seems to presage the arrival of that period when human improvement must end.”

Why yes, all the worthwhile stuff has already been invented!!!

But what about the flying car I want so badly?

[SunkenCiv]

Thanks! High-power capacitors are used in nukes, by the way.

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[Ozark Tom]

“IT’S A BEAD CONDENSER, MODEL AB 619 WITH A BREAKDOWN VOLTAGE OF 33,000 VOLTS.”