Ultracapacitor

[Doctorbass]

Interesting for Wh/kg!!---showed as Wg/g in this graph.. but that give 2500Wh/kg at 1000W of power !!!.. if peukert effect exist with those we could easyly imagine using 1kg of these pack at 1000W continuous for an hour!!!


on the pics on this article:
http://www.signonsandiego.com/news/business/20060608-9999-1b8maxwell.html


We can imagine they are around 200g each so 5 of those would cost 200$
200$ for 1kg=1000W continuous for an hour!!!

2.5Vx5=12.5Vx3=37.5V for a total of 600$ would give 3000W continuous!
and maybe 100km range at 30wh/km at 1000W of power!!

and now a test prototype for a dewalt drill... yess the dewalt again!..

http://www.grc.nasa.gov/WWW/RT/2003/7000/7720eichenberg.html

Today, the company has reduced the price of a 2.5-volt, 2,600-farad ultracapacitor by a factor of 10, from roughly $400 to about $40 apiece

...

Maybe the V28 or the A123 will have a little battle with those!.. who know?....

I am dreaming?...

Doc

 

[eP]

Interesting for Wh/kg!!---showed as Wg/g in this graph.. but that give 2500Wh/kg at 1000W of power !!!.. if peukert effect exist with those we could easyly imagine using 1kg of these pack at 1000W continuous for an hour!!!

It is missprint.

Today, the company has reduced the price of a 2.5-volt, 2,600-farad ultracapacitor by a factor of 10, from roughly $400 to about $40 apiece

...

Maybe the V28 or the A123 will have a little battle with those!.. who know?....

I am dreaming?...

Doc

Show me where we can buy it for $40 a piece ?

Maybe at 100K units negociated contract.

 

[Doctorbass]

You haven't read the article i posted ... just click on the link i gave and see the text on left of the pic with the caps and a guy.

 

[eP]

You haven't read the article i posted ... just click on the link i gave and see the text on left of the pic with the caps and a guy.

Yeah
I've read it. It is a marketing move - advertising.
Real prices for end user are much much higher.

$100 a piece, maybe a little less.

Show me the shop if i'm wrong. Article don't sell anything.

 

[fechter]

I have some small Maxwell ultracapacitors I got as a FREE engineering sample many years ago when they first came out. B.S. does pay off sometimes

If the pricing and performance in the article are true, then it will make capacitors more attractive in the future.

In the past versions, a very large, expensive capacitor would supply enough juice to run a bike motor for about 30 seconds. I'm wondering how practical these new models would be. Certainly capacitors have a tremendous cycle and calendar life. They should last practically forever.

One problem with capacitors is the voltage steadily drops as they are discharged, so either you need a wide range dc-dc converter or you just use a fraction of the total stored energy and stop discharging at half voltage or so.

 

[Doctorbass]

One problem with capacitors is the voltage steadily drops as they are discharged, so either you need a wide range dc-dc converter or you just use a fraction of the total stored energy and stop discharging at half voltage or so.

I forgot that thing :?

I know that Rockford Forsgate, a car audio brand use those in their must powerfull amplifier. The T15K, a 4 x 1000W amplifier able to produce a burst of 10 second ofo 15kW these caps are used by the amp to supply the big amount of current whenlarge transient in music are played, like low bass freq...

http://www.rockfordfosgate.com/prod...y_id=24&item_id=105829&locale=en_US&p_status=

Doc

 

[safe]

Check this out...

What an interesting control panel design for a speedometer, ultracapacitor charge level and battery charge level.

I like the design... very elegant and practical...

http://www.afstrinity.com/press-images.htm

 

[HAL9000v2.0]

I am not sure what is this...

http://www.eestor.biz/p/news/ultracapacitor/ultracapacitor.htm

 

[Link]

Such a useful pic...

 

[Toorbough ULL-Zeveigh]

*snarf*

good to see another appearance by e-rex.
I can think of an number of situations he would prove handy.

 

[Link]

LOL, T-Rex is from http://qwantz.com.

This is the full comic in question:

The "daaaaaaaaaamn" thing is a running joke from a previous comic.

I just clipped off the last panel because it comes in handy for situations like this.