Let's learn about Ultra-capacitor advantages

To start with, as a capacitor, its charge and discharge rates are absolutely spectacular compared with batteries – up to 1,000 times faster. We're talking about charging an entire car battery in a matter of seconds, maybe three times quicker than filling a tank with fossil fuel.

And since there's no chemical reaction taking place, merely a physical separation of protons and electrons, super-fast charging doesn't cause any heat build-up or swelling of the battery. That gives the carbon ultra-capacitor an exceptionally long lifetime, up to a million charge cycles.The ultra-capacitor's monster discharge rate also offers another advantage over lithium batteries. In high-powered EVs, the slow discharge rate of the batteries often means you need to up battery capacity in order to add performance. The Tesla Model S, for example, wouldn't be able to activate its Ludicrous speed mode with a smaller battery pack, because the slow discharge rates of the batteries would cause a power bottleneck. That's absolutely not a problem with an ultra-capacitor; these things discharge fast enough to output enormous power with a very small battery.

It's also very cheap and simple to manufacture, using a process that Nawa Founder and COO Pascal Boulanger describes to us over the phone as "the same process used to create photovoltaic panels. It's industry proven, highly efficient and cost effective."

But these remarkable advantages are not the key driver for Boulanger. He believes the carbon ultra-capacitor's environmental benefits are its biggest calling card.

"For me, the dream comes from the fact that we're not using lithium, cobalt, rare earth metals," says Boulanger. "These materials are polluting, and very complicated to extract from the Earth. We're moving from a society where we extract oil to put in the car, to the same theme, but extracting metals and minerals to put in electric cars. It's not good, because we're destroying our planet.

"Nawa's ultra-capacitors only use carbon and aluminum. Our carbon comes from natural, sustainable sources. We don't need to mine. When I created Nawa, that was what I wanted to promote: a real, sustainable way. That's the dream. Building safer and cleaner batteries."

Could you run a vehicle completely on Nawa's carbon technology? Yes, says Nawa CEO Ulrik Grape."People looking for small cars that are used mainly for small drives, like around city centers, our technology would be perfect," Grape says. "You can do 50 to 100 kilometers (31 to 62 mi) on our technology alone, and you can recharge the car in less than 10 or 20 seconds. It's perfect for a fleet of electric cars for sharing."But this ultra-capacitor technology does have drawbacks.

This article is from Allicdata Electronics Limited. Reprinted need to indicate the source: http://www.allicdata.com