A Review on progress in wireless charging technologies for electric vehicles

Abstract

The surge in popularity of electric vehicles (EVs) can be attributed to significant advancements in performance and driving range. Traditional EVs rely on cable charging, but major manufacturers like Tesla, BMW, and Nissan are spearheading the development of wireless charging technology, eliminating the need for cumbersome wires. This wireless, inductive charging not only enhances safety by eliminating sparks but also opens up possibilities for dynamic charging, allowing EVs to charge while in motion. Once fully implemented, this innovation could reduce the reliance on large batteries and alleviate range anxiety associated with EVs. Countries such as Korea, Germany, and the UK are actively driving the adoption of wireless charging. Extensive research literature delves into the technical aspects of wireless charging, including communication protocols, coil design, and compensation methods. Innovative approaches such as utilizing superconducting materials in coil designs are explored for their potential to enhance charging efficiency. Safety concerns related to wireless charging are addressed along with an overview of relevant standards. Additionally, the study provides an economic analysis of the costs associated with various wireless charging setups. Overall, this research contributes to the understanding of wireless EV charging and highlights its transformative potential for the industry.