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Graphene-coated coupling coil for AC resistance reduction

United States Patent

March 4, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
At least one graphene layer is formed to laterally surround a tube so that the basal plane of each graphene layer is tangential to the local surface of the tube on which the graphene layer is formed. An electrically conductive path is provided around the tube for providing high conductivity electrical path provided by the basal plane of each graphene layer. The high conductivity path can be employed for high frequency applications such as coupling coils for wireless power transmission to overcome skin depth effects and proximity effects prevalent in high frequency alternating current paths.
Miller; John M. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 526,662
June 19, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with United States government support under Prime Contract No. DE-AC05-000R22725 awarded by the U.S. Department of Energy. The United States government has certain rights in this invention.