Fighter jets can refuel in flight, saving much time on long trips. So, what if you could likewise top off your vehicle's energy supply while zooming along?
That is the vision of Khurram Afridi, associate professor of electrical and computer engineering at Cornell University.
Afridi's team is exploring a way to charge moving electric vehicles as they pass over high-voltage wires embedded in the roadway. It's known as dynamic wireless power transfer.
The team's approach uses capacitive charging with high-frequency (13.56 megahertz) electric fields, vs. the lower-frequency (85 kilohertz) magnetic fields used in the inductive charging pads on the market today, which require a vehicle to remain stationary while being charged.
Imagine, no waiting in line. No getting out at a station and fumbling with cash or a credit card in the dark, rain, heat or snow. And critically, EV batteries could be much smaller, improving sustain…