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One technology quietly making its way back into the limelight despite the lack of press is the capacitor. Capacitors have been around for over 250 years and have changed little since their invention. However today, with new technologies, capacitors are about to make a bound into the forefront.
I'm seeing these new capacitors grouped into two categories... supercapacitors and ultracapacitors. Now some of you are going to say, "These are the same thing!" and that's exactly what wikipedia says. But I don't think I agree.
Ultracapacitors are basically the same old capacitor technology but with more layers to create more storage capacity. Ultracapacitors are already making their way into everyday use. Zenn Cars is close to releasing its first ultracapacitor cars. These capacitors will pack up to ten times as much charge as conventional car batteries.
Supercapacitors seem to be different. A group at MIT are perfecting supercapacitors. They use carbon nanotubes to create the storage capacity. If claims are true these supercapacitors will provide even more power than the aforementioned ultracapacitors.
See if you can imagine this capacitor in your car
- All the power of a battery.
- A full charge in minutes or less... no different filling up my gas tank except I plug it into an outlet to charge.
- Will not lose its capacity over time like a battery.
- No harmful chemicals to dispose of or gases to blow up... just carbon.
That sounds great doesn't it? Let's hope the big motor companies don't find a way to delay the inevitable. The only drawback is that so much has been invested in current technologies it will be awhile before these capacitors hit their stride.
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