A 120 kW wireless charging system for electric vehicles ( EV ) has been proposed by researchers at the Oak Ridge National Laboratory ( ORNL ) in Tennessee . The system works by converting direct current ( DC ) to high frequency alternating current , generating a magnetic field . After the electricity is transferred to a second coil , it is converted back to DC and stored in the EV battery pack . ORNL researchers said eventually they want to create a wireless charging system that can deliver a 350 kW charge and be integrated into vehicles .
A 120 kW wireless charging system for electric vehicles (EV) has been demonstrated by researchers at the Oak Ridge National Laboratory (ORNL) in Tennessee. The system works by converting direct current (DC) to high frequency alternating current, generating a magnetic field. After the electricity is transferred to a second coil, it is converted back to DC and stored in the EV battery pack. ORNL researchers said eventually they want to create a wireless charging system that can deliver a 350 kW charge and be embedded into roads.