Wireless Electric Car Charging System for Highways

Based on magnetic resonant inductive coupling technology developed in 1894, researchers at Stanford have just developed an innovative wireless electric car charging system for highways – it would power moving cars at high efficiency while untethering them from plugs. The system comprises of a series of coils embedded underway: as one coil is charged, the other will absorb the resulting magnetic field and turn it into electrical energy. Experiments now prove that the coils can deliver 10 kilowatts of energy for 6.5 feet, and the transfer of electricity is about 97% efficient.













