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Ultra Capacitors?
By lagomorpha on 4/10/2008 10:54:05 AM , Rating: 2
Could this material be used as a dielectric material in capacitors that would completely stop leakage and allow massive capacitance?

RE: Ultra Capacitors?

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RE: Ultra Capacitors?
By codeThug on 4/10/2008 11:48:45 AM , Rating: 2
Yes. Yes. My question exactly...

RE: Ultra Capacitors?
By MrTeal on 4/10/2008 11:51:03 AM , Rating: 2
Hard to say. In a simple plate capacitor, the capacitance is the area of the two plates, divided by the distance between them, multiplied by the permittivity. The permittivity indicates how well the material concentrates flux lines.

Depending on what happens to the perm. in this superinsulating state, the answer could be yes, yes but different, or no.

If the permittivity goes up, you'll obviously get more capacitance. Even if it doesn't, you might be able to use a thinner layer and increase cap that way, which assumes that you can get ultra thin layers of this material. Again, even if the perm. doesn't change, you could get a normal value of capacitance, but with no or a very high voltage rating, since current can't punch through the dielectric.

Or, if symmetry works like it often tends to, this might not be suitable for capacitors. Superconductors tend to lose their properties in strong magnetic fields; if superinsultators do the same in strong electrical fields, they obviously wouldn't work well.

So, I have no idea, really. The article doesn't give enough information to really say.


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