The Super Supercapacitor.

Point out news stories, on the net or in mainstream media, related to polywell fusion.

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Diogenes
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The Super Supercapacitor.

Postby Diogenes » Wed Feb 20, 2013 4:58 pm

‘What all the wise men promised has not happened, and what all the damned fools said would happen has come to pass.’
— Lord Melbourne —

GIThruster
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Re: The Super Supercapacitor.

Postby GIThruster » Wed Feb 20, 2013 6:39 pm

This loaner 'puter I'm on can't play falsh of any sort--just locks up the machine. I trust this is more about the folks at UCLA using a lightscribe to sinter graphene onto CD's and DVD discs?

Any numbers yet for bulk capacitors as compared to LiPo batteries?
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

ladajo
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Re: The Super Supercapacitor.

Postby ladajo » Wed Feb 20, 2013 6:46 pm

Yes, they quickly show the 'how they made graphene' bit. But then move into the, 'holy crap' it is an awesome capacitor. A small sheet about 1inch square single layer (each side) in a flat capacitor configuration, is shown to be charged for a couple of seconds, and then run an LED(?) lamp for up to 5 minutes.

You could push a good spark if you rolled up a sheet of it I would think...
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)
What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)

bcglorf
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Re: The Super Supercapacitor.

Postby bcglorf » Thu Feb 21, 2013 3:54 pm

So, if it can charge crazy fast and discharge over time, and we can make it dirt cheap, can these be used for power generation? Build an array of a couple thousand or even million of them and hook the charging end up to a lightening rod or the post in town hall?

hanelyp
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Re: The Super Supercapacitor.

Postby hanelyp » Thu Feb 21, 2013 4:01 pm

If the described capacitors can be made in volume cheap enough, applications for matching supply to load would be extensive.
The daylight is uncomfortably bright for eyes so long in the dark.

Diogenes
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Re: The Super Supercapacitor.

Postby Diogenes » Thu Feb 21, 2013 4:24 pm

‘What all the wise men promised has not happened, and what all the damned fools said would happen has come to pass.’
— Lord Melbourne —

JoeP
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Re: The Super Supercapacitor.

Postby JoeP » Thu Feb 21, 2013 4:43 pm

Thanks for posting the story. Very interesting development and creative use of a DVD burner with the inherent precision to cheaply manufacture these. Another article link:


I assume that leakage is still one of the major hurdles. I'm curious as to how well these hold charge.

ladajo
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Re: The Super Supercapacitor.

Postby ladajo » Thu Feb 21, 2013 4:55 pm

Why would leakage be a hurdle?
Existing dielectrics seem fine. Especially for normal applications. The graphene would seem a nice cheap and low mass/volume alternative to existing charge plates/films.
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)

What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)

GIThruster
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Re: The Super Supercapacitor.

Postby GIThruster » Thu Feb 21, 2013 7:51 pm

Did they give a specific energy density as compared to LiPo's?
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis

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Re: The Super Supercapacitor.

Postby paperburn1 » Thu Feb 21, 2013 8:25 pm

The thing that got my attention Using this technique, we have been able to produce more than 100 micro-supercapacitors on a single disc in less than 30 minutes, using inexpensive materials."
I am not a nuclear physicist, but play one on the internet.

JoeP
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Re: The Super Supercapacitor.

Postby JoeP » Thu Feb 21, 2013 9:56 pm


skippy
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Re: The Super Supercapacitor.

Postby skippy » Sat Feb 23, 2013 7:53 am


mvanwink5
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Re: The Super Supercapacitor.

Postby mvanwink5 » Sat Feb 23, 2013 8:56 am

Skippy,
Thanks for finding that. Like you, I am not surprised at the energy density being low relative to battery tech. I became suspicious when it was not mentioned in bold headlines. I guess it must be the form factor or ability to put it on a board, plus durability / longevity. Maybe they can do something with it with development work, but it seems the key is the dielectric.
Near term, cheap, dark horse fusion hits the air waves, GF - TED, LM - Announcement. The race is on.

ladajo
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Re: The Super Supercapacitor.

Postby ladajo » Sat Feb 23, 2013 1:02 pm

Maybe they can come up with an "anti-graphene" as the ultimate super lightweight insulator and dielectric.
The development of atomic power, though it could confer unimaginable blessings on mankind, is something that is dreaded by the owners of coal mines and oil wells. (Hazlitt)

What I want to do is to look up C. . . . I call him the Forgotten Man. (Sumner)

GIThruster
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Re: The Super Supercapacitor.

Postby GIThruster » Sat Feb 23, 2013 5:04 pm

IIRC it is. Graphene only conducts along its surface. It doesn't pass charge through, So technically it is both a conductor and an insulator. At just a few atoms thick though, you can't differentially charge the surfaces as that would be way too much field for its dielectric strength. What you can to though is make electrodes that are just a few atoms thick. The real issue with the folks making it with a Lightscribe is they found a cheap process for manufacturing it.
"Courage is not just a virtue, but the form of every virtue at the testing point." C. S. Lewis


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