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High energy storage capacitor by embedding tunneling nano-structures

United States Patent

November 4, 2014
View the Complete Patent at the US Patent & Trademark Office
In an All-Electron Battery (AEB), inclusions embedded in an active region between two electrodes of a capacitor provide enhanced energy storage. Electrons can tunnel to/from and/or between the inclusions, thereby increasing the charge storage density relative to a conventional capacitor. One or more barrier layers is present in an AEB to block DC current flow through the device. The AEB effect can be enhanced by using multi-layer active regions having inclusion layers with the inclusions separated by spacer layers that don't have the inclusions. The use of cylindrical geometry or wrap around electrodes and/or barrier layers in a planar geometry can enhance the basic AEB effect. Other physical effects that can be employed in connection with the AEB effect are excited state energy storage, and formation of a Bose-Einstein condensate (BEC).
Holme; Timothy P. (San Francisco, CA), Prinz; Friedrich B. (Woodside, CA), Van Stockum; Philip B. (Redwood City, CA)
The Board of Trustees of the Leland Stanford Junior University (Palo Alto, CA)
12/ 928,346
December 9, 2010
GOVERNMENT SPONSORSHIP This invention was made with Government support under contract number W911NF-07-2-0027 awarded by the US Army Research Laboratory, and under contract numbers DE-SC0001060 and DE-AR0000069 awarded by the Department of Energy. The Government has certain rights in this invention.