A prototype charging system for electric and hybrid vehicles is helping demonstrate a technology that could one day play a key role in the electrification of America's highways. The bench-scale prototype developed at Oak Ridge National Laboratory is allowing researchers to quantify the power transfer parameters necessary to wirelessly charge stationary and moving vehicles. "Our laboratory tests have been successful in transmitting greater than 4 kilowatts," said Laura Marlino of the Energy and Transportation Science Division. "This has been demonstrated with efficiencies in the mid-90s from the transmitting antenna to the load across a 10-inch air gap."
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