Many tire factories have envisioned using the energy generated when the car is moving forward to generate electricity, such as the BH03 concept tire that Goodyear showed in 2015. Now, Suminoto Rubber of Japan, together with researchers from Kansai University, has proposed another new concept tire that can use friction to generate electricity. The idea is to use this part of the friction to provide the required power for car accessories, such as tire pressure monitoring sensors.
(Photo from: Sumimoto, via New Atlas)
This energy-harvesting concept tire is composed of ordinary car tires + built-in special energy harvesting devices. There are two layers of rubber in the device, each covered in electrodes.
When the car is driving, the film with positive and negative charges will deform, resulting in electrostatic friction. And wanting to use such triboelectricity is actually not a fantasy.
In 2015, foreign media reported similar technologies developed by a research team at the University of Wisconsin-Madison. It successfully used the friction of the tires to provide electrical energy for the headlights on the toy jeep.
Schematic diagram (from: Suminoto Rubber)
Sumitomo has not announced that it will commercialize this technology, but it was originally developed to power small-power sensors such as tire pressure monitoring.
The project is currently supported by the Japan Science and Technology Agency, so the team will continue to conduct in-depth research in order to extend this technology to power other equipment.
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