On-Road Charging Could Allow ‘Unlimited’ EV Driving


Japanese researchers are developing a new system that they say could ultimately power electric vehicles (EVs) for travel across “unlimited” distances without the hindrance of heavy batteries.

While based on railway infrastructure in which individual cars are powered through overhead wires, the new EV technology would convert energy from overhead power lines into radio frequencies and transmit these frequencies to a metal track embedded under the surface of the road.

The prototype electric vehicle, being developed by Toyota Central R&D Labs and Toyohashi University of Technology, is able to convert this radio frequency to functional voltage through a circular steel belt installed inside the tires.

The researchers have already demonstrated the feasibility of their design through low-power laboratory experiments and argue that achieving an energy transfer of tens of kilowatts would make possible unrestricted expressway driving for EVs.

Article appearing courtesy Yale Environment 360.


About Author

Yale Environment 360 is an online magazine offering opinion, analysis, reporting and debate on global environmental issues. We feature original articles by scientists, journalists, environmentalists, academics, policy makers, and business people, as well as multimedia content and a daily digest of major environmental news. Yale Environment 360 is published by the Yale School of Forestry & Environmental Studies and Yale University. We are funded in part by the Gordon and Betty Moore Foundation and by the John D. and Catherine T. MacArthur Foundation. The opinions and views expressed in Yale Environment 360 are those of the authors and not of the Yale School of Forestry & Environmental Studies or of Yale University.

Join the Conversation