Posted by Vince on 1/12/2009, 1:15 pm
68.144.14.16
A company by the name of EEstor, based in Cedar Park Texas, has very recently been granted a patent on a new super capacitor.
http://gm-volt.com/2008/12/21/eestor-is-granted-a-new-patent-on-the-eesu-offering-extensive-detail-on-its-design-and-function/
If this thing proves to be "true" it would revolutionize the entire battery industry!
This isn't a new battery but rather, an electricity storage tank.
They claim the super capacitor is about 2.6 cubic feet and weighs about 261 lb. It's a 31 farad capacitor with a voltage rating of 5000 volts and used at about 3500 volts. Recycle test of over 1 million times have shown no sign of deterioration (which means it would virtually last the life-time of any car).
It stores 35kw hours of power .... enough to drive a small car about 500 miles. Recharge time (provided there's an adequate source) can be done in as little as 3 minutes and uses about $10 worth of power. Recharging from a regular wall outlet would take about 30 hours. Recharging can occur at any time though and for any amount of time without negative effects (much like putting only $20 of gas into the tank instead of the full $80)
One of the key advantages of capacitors is that they have virtually no internal resistance and can therefore, be charge at any amount of current almost instantaneously. That means -when utilized in a vehicle propulsion system- that instead of braking and dissipating the energy on brake pads in the form of heat (wasted energy), a capacitor can absorb that energy in the form of recharging. Since much of our fuel consumption is used to accelerate cars from stop to driving speed and then lost in braking, the re-absorption of the braking energy contributes substantially to energy conservation.
On a smaller scale, if these capacitors prove to be for real, it would mean that present lithium ion batteries -which lose 30% of their life per year and discharge rapidly even when unused and are filled with dangerous material- would be replaced by equivalent caps 1/3 of the battery size, weighing about 1/2 as much and delivering about twice the power with only .1% internal drain per month, lasting indefinitely and recharging as quickly as a source could provide.
So ..... like ........ you would plug your laptop into the wall for about 3-5 seconds and unplug .... and then be able to run the laptop for the next 6 hours totally cord free! Never need to buy a new battery for it either.
-Vince
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