Researchers at the University of Illinois have developed a fabric that helps keep people cool in hot weather and converts human movement into electricity. In the future, it could reduce the risk of overheating and power small wearable devices, such as headphones.
The material reflects 96% of sunlight. Under direct rays, its temperature remained 3–6°C below the ambient air temperature. Electricity is generated when materials come into contact and separate as a person moves.
Previously, combining cooling and energy harvesting required several functional layers. The new fabric brings both functions together in a single flexible structure. It allows air and water vapor to pass through, helping to dissipate heat, and printing technology makes it possible to produce material for sportswear and work gear for hot conditions.
