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Title: Graphene-coated coupling coil for AC resistance reduction

Abstract

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.

Inventors:
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1126886
Patent Number(s):
8665049
Application Number:
13/526,662
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
DOE Contract Number:  
AC05-000R22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Miller, John M. Graphene-coated coupling coil for AC resistance reduction. United States: N. p., 2014. Web.
Miller, John M. Graphene-coated coupling coil for AC resistance reduction. United States.
Miller, John M. Tue . "Graphene-coated coupling coil for AC resistance reduction". United States. https://www.osti.gov/servlets/purl/1126886.
@article{osti_1126886,
title = {Graphene-coated coupling coil for AC resistance reduction},
author = {Miller, John M},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {3}
}

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Works referenced in this record:

Eddy Current Detection
patent-application, January 2012


Development and Validation of Model for 95%-Efficiency 220-W Wireless Power Transfer Over a 30-cm Air Gap
journal, November 2011


Reduction of Proximity Effect in Coil Using Magnetoplated Wire
journal, June 2007


Theoretical Analysis of AC Resistance in Coil Using Magnetoplated Wire
journal, September 2009