Efficient wireless power charging of electric vehicle by modifying the magnetic characteristics of the transmitting medium

There is a developing enthusiasm for electric vehicle (EV) innovations as a result of their lower fuel utilization and greenhouse emission output. Integrating EV's with highway wireless power transfer (WPT) technology can conveniently reduce charging time and possibly expand their travel distance. There are several issues with the current WPT technology for electric vehicles: 1) low efficiency due to large coil-coil distance and 2) slow charging time. Two ideas have been proposed to increase system efficiency: 1) using a modified cement for covering the transmitting antenna area, and 2) using high frequency wide band gap switches which can transfer a high amount of power in a short time. The electromagnetic and mechanical properties of several modified cementitious composite mediums were characterized and the results show significant improvement to system efficiency.