Japanese researchers at the Toyohashi University of Technology have revealed that they have devised a way to wirelessly transmit enough electricity through 10 cm of concrete, which could help to assist powering a vehicle in the future.
The team was able to pass 50-60w of power through 10 cm of concrete and tyres, (the same concrete used for roads in Japan) to power a light bulb, in the life size demonstration.
The demonstration of the new technology was showcased at the WTP Wireless Technology Park, in Yokohama, Japan last week. But the technology is still in the very early stage of development so don’t expect to see electric cars powered by electricity under the roads just yet. Team leader Takashi Ohira, professor at the university’s Department of Electrical and Electronic Information Engineering explained:
“The efficiency of power transmission from the metal plate under the concrete, which is the same as used for public roads in Japan, to the light bulb attached to the tire is 80-90% or higher”
Potential Applications and Future Prospects
The implications of this technology are vast and could revolutionize the way we think about powering electric vehicles. Imagine a future where electric cars can charge while driving, eliminating the need for frequent stops at charging stations. This could significantly extend the range of electric vehicles and make them more convenient for long-distance travel. Additionally, this technology could be applied to other areas such as wireless charging for public transportation systems, reducing the need for overhead wires or charging stations.
However, there are several challenges that need to be addressed before this technology can be widely implemented. One of the main concerns is the efficiency of power transmission over longer distances and through thicker layers of concrete. While the current demonstration shows promising results, scaling up the technology to cover entire road networks will require significant advancements in materials and engineering.
Technical Challenges and Considerations
Another important consideration is the safety and reliability of the wireless power transmission system. Ensuring that the system can operate safely in various weather conditions and under heavy traffic is crucial. Researchers will need to conduct extensive testing to ensure that the technology can withstand the rigors of real-world use.
Moreover, the cost of implementing such a system on a large scale could be prohibitive. Building the necessary infrastructure, including embedding metal plates under existing roads and developing compatible vehicles, would require substantial investment. Governments and private companies would need to collaborate to fund and support the development of this technology.
Despite these challenges, the potential benefits of wireless power transmission for electric vehicles are undeniable. Reducing our reliance on fossil fuels and decreasing greenhouse gas emissions are critical goals in the fight against climate change. By making electric vehicles more convenient and accessible, this technology could play a significant role in achieving these objectives.
The research conducted by the Toyohashi University of Technology represents a significant step forward in the field of wireless power transmission. While there is still much work to be done, the potential applications of this technology are exciting and could have a profound impact on the future of transportation. As researchers continue to refine and develop this technology, we may one day see a world where electric vehicles can charge seamlessly as they travel, paving the way for a more sustainable and efficient transportation system.
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