Lockheed Martin Corporation

Applied Nanostructured Solutions, LLC

Joseph J Sedlak

William Patrick Burgess

Tushar K Shah

Han Liu

Corey Adam Fleischer

Lawrence P Hetzel

Gregory Pensero

Jess Michael Goldfinger

Long T Nguyen

Mandel Durwood Floyd

Greogry F Pensero

Gennadiy Blinder

Jigar M Patel

Rajineeta Rachel Basantkumar

Harry Charles Malecki

Electrical devices having a plurality of stacked electrode layers are described. At least one of the electrode layers contains continuous fibers that are infused with carbon nanotubes. The continuous fibers can be disposed upon an electrically conductive base plate. The electrical devices can further contain an electrolyte contacting each electrode layer and a layer of separator material disposed between each electrode layer, in which case the electrical devices can form a supercapacitor. Such supercapacitors can have a capacitance of at least about 1 Farad/gram of continuous fibers. The capacitance can be increased by coating at least a portion of the infused carbon nanotubes with a material such as, for example, a conducting polymer, a main group metal compound, and/or a transition metal compound. Methods for producing the electrical devices are also described.

Electrical devices containing carbon nanotube-infused fibers and methods for production thereof

A system is provided that effectively obviates shortcomings of conventional, diode-ORed, redundant power supply systems by forcing a primary power source to provide power to the system load most the time, even when the primary source provides a lower voltage than that of a secondary power source. This preferential selection of the lower-voltage primary is achieved by interposing a power switching unit between the secondary power source and the ORing diode in front of the load. The power switching unit of the illustrative embodiment comprises a voltage regulator that is regulated at a first voltage level, which is lower than the nominal output voltage level provided by the primary power source. Meanwhile, the primary power source is able to charge the secondary power source, which is a battery in the illustrative embodiment, so that the secondary power source can provide power to the load when the primary power source is either interrupted or falls below the first voltage level.

Redundant power supply with a switchable, linear voltage regulator

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Essex, MD, United States of America

Joseph J Sedlak