Stop the presses! We've finally got some real information regarding EEStor's highly secretive capacitor-based energy storage system, though it's not exactly coming from the company itself. It seems that EEStor recently filed for patents of its new technology, which centers around a core of aluminum coated barium titanate powder immersed in a polyethylene terephthalate plastic matrix, and they've now been granted those patents. The best part for those of us who've been following the company's developments is that the patent office has released detailed information regarding what makes it all tick.
We'll leave it up to you if you want to read through the whole document, but here are a few salient points for your consideration. The EEStor EESU would weigh just 282-pounds, yet would carry as much juice as the lithium ion battery pack that's currently in use by Tesla Motors for its Roadster. Just as much power but nearly four-times lighter? That's impressive. Even better, EEStor claims that its EESU's performance never degrades with use and would potentially last forever. Great. We'll take two, and we're not the only ones excited. Click past the break for more.
[Source: Patent file (.pdf link) via GM-Volt via Treehugger]