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Dumb question but I though capacitors store energy and not power?
At least, that's my understanding of it.
And no mention of the self discharge rate.
Low Leakage Current as small as 1µA Low Self-discharge rate, 72 hours @ discharge https://abracon.com/datasheets/AHCR-S04R0S.pdf
The more the Farads the higher the leakage. The higher the tempature the higher the leakage.
For anyone that wants to see a real data sheet: Nominal Voltage: 4.0V High Power and Energy Densities Cycle Life > 50K Cycles Capacitance Range: 10F-1200Farads https://abracon.com/product-lineup/frequency-control-timing-... Note that the original data sheets said that these could be wave soldered. ABSOLETLY NOT. Even hand soldering they must be treated with respect, a lot of respect. One of the major problems with th…
Let's say you want to make a hybrid car lighter-weight. Where is this useful? Power density and cycle life are truly impressive. Energy density is super low
You would use these to provide peak power in a system that had short term power needs that were high above the average power needs AND had that power requirement as a bottleneck. Energy is the bottleneck for cars though, not power. unless you're wanting your prius to accelerate like a ferrari Maybe it would be useful for less losses with regenerative braking? These would presumably be able to charge much faster and t…
That's the point of a hybrid.
Dumb question but I though capacitors store energy and not power?
Earlier quoted context omitted.
You would use these to provide peak power in a system that had short term power needs that were high above the average power needs AND had that power requirement as a bottleneck. Energy is the bottleneck for cars though, not power. unless you're wanting your prius to accelerate like a ferrari Maybe it would be useful for less losses with regenerative braking? These would presumably be able to charge much faster and t…
> unless you're wanting your prius to accelerate like a ferrari That's the point of a hybrid.
(I find that electric acceleration makes highway merging much safer.)
Large, charged capacitors are pretty frightening. Batteries too, but their discharge rate is limited to the speed of the chemical reaction.
Earlier quoted context omitted.
> unless you're wanting your prius to accelerate like a ferrari That's the point of a hybrid.
It’s the best part of any electric drivetrain. Especially when you can remap the throttle to really launch from zero. :) (I find that electric acceleration makes highway merging much safer.)
Large, charged capacitors are pretty frightening. Batteries too, but their discharge rate is limited to the speed of the chemical reaction.
Are capacitors not limited by a chemical reaction?