The electric vehicle (EV) revolution is set to undergo a significant transformation, thanks to cutting-edge advancements in wireless charging technology. A research team from Ulsan National Institute of Science and Technology (UNIST), led by Professor Franklin Bien, has developed a novel wireless power supply system that could change the way we think about charging electric vehicles. This groundbreaking work, recently detailed in the journal *Applied Energy*, offers a promising solution to one of the major hurdles in EV adoption: the constant search for charging stations.

Professor Bien and his team have pioneered a wireless charging track system that enables electric vehicles to receive power while in motion. By harnessing a robust magnetic field generated through a carefully structured network of wires, this innovative system allows vehicles to move smoothly along designated power tracks. Unlike traditional technologies that rely on costly and often less durable ferromagnetic materials, this system employs a technique that utilizes an electromagnetic generator to create a circular magnetic field, facilitating efficient power transfer as the vehicle navigates.

As vehicles drive over the specially designed tracks, they can enjoy an uninterrupted flow of energy, which drastically reduces the downtime associated with conventional charging methods. This groundbreaking approach makes it feasible for electric cars to capitalize on these wireless power supplies without being tethered to stationary charging stations.

A notable advancement of this technology is the accompanying algorithms developed by the research team. These algorithms are specifically designed to optimize the layout of the power supply tracks and the receivers integrated into the vehicles. Collectively, they have showcased a remarkable power transfer efficiency of up to 90%, setting a new standard for wireless charging solutions. This increased efficiency not only caters to user convenience but also has implications for the longevity and reliability of electric vehicle batteries.

In an era where reducing charging times and expanding driving ranges are paramount, this technology brings hope. Professor Bien emphasizes that the ability for electric vehicles to move dynamically—both in parallel and vertically—remains largely unaddressed in current wireless charging technologies. This insight points towards an exciting future where electric vehicles can potentially draw power not just on flat surfaces but in various operational scenarios.

In their pursuit of making this technology commercially viable, the UNIST research team has placed significant emphasis on safety. They have conducted comprehensive safety verifications to ensure compliance with international standards established by bodies such as the Institute of Electrical and Electronics Engineers (IEEE) and the International Commission on Non-Ionizing Radiation Protection (ICNIRP). These measures are crucial in addressing public concerns regarding the effects of electromagnetic fields, making sure that this innovative charging technology is both effective and safe for everyday use.

As more consumers lean towards electric vehicles, advancements like the wireless power supply system developed by Professor Bien’s team could revolutionize the market. By tackling the practicalities of charging time and range, this technology not only enhances user experience but also contributes to the larger goal of sustainable transportation. The potential for widespread implementation of such systems marks a significant milestone in the integration of technology and transportation, offering a glimpse into a future where electric vehicles can thrive without the constraints imposed by current charging infrastructure. The journey of electric vehicles is poised to become increasingly efficient, convenient, and sustainable, thanks to innovations like these.

Technology

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