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Canada: UBC research creates wireless charger for electric cars

VANCOUVER — Researchers at the University of British Columbia say they’ve found a way around the nuisance and potential danger of repeatedly having to plug in an electric car to get it moving again.

Prof. Lorne Whitehead, with the university’s physics department, says his team has developed a way to wirelessly recharge the vehicle using a frequency 100 times lower than what’s used now.

“Wireless charging has been a much sought-after technical solution for everything from cell phones to electric cars,” Whitehead said in a news release.

“A significant concern for charging cars wirelessly has been the high power and high frequency electromagnetic fields and their unknown, potential health effects on humans.”

The UBC researchers came up with so-called “remote magnetic gears,” a system that has been successfully tested on campus service vehicles.

Whitehead said it involves two magnets, one in the parking spot that rotates on electricity from the grid and the other within the car. The outside magnet remotely spins the in-car gear, generating power to charge the battery.

Recharging starts as soon as the car pulls into the parking spot.

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