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CityZENN Power Source Patent Granted

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TreeHugger: December 16th EEStor was granted a US patent for their EESU. The patent is a highly information-rich document that give a remarkable insight into these potential devices. EEStor notes “the present invention provides a unique lightweight electric-energy storage unit that has the capability to store ultrahigh amounts of energy”.

The core ingredient is an aluminum coated barium titanate powder immersed in a polyethylene terephthalate plastic matrix. The EESU is composed of 31,353 of these components arranged in parallel. It is said to have a total capacitance of 30.693 F and can hold 52.220 kWh of energy. The device is said to have a weight of 281.56 pound including the box and all hardware. Unlike lithium-ion cells, the technology is said not to degrade with cycling and thus has a functionally unlimited lifetime.

The Tesla Roadster’s li-ion battery pack holds around 53kwh, but to prolong battery life, a certain portion of the battery is never completely discharged. This would mean that functionally, more power would be available.

Written by mattliving

December 23, 2008 at 4:11 am

Posted in Green

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