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Piezoelectric Fiber Power-Generating Sportswear VoltWear Enters Mass Production: 0.5 Watts of Power Generated Per Step While Running

VoltWear piezoelectric fiber sportswear co-developed by Under Armour and Georgia Tech enters mass production, with each running step generating approximately 0.5 watts of electricity through the piezoelectric effect to continuously power wearable sensors.

Piezoelectric Fiber Power-Generating Sportswear VoltWear Enters Mass Production: 0.5 Watts of Power Generated Per Step While Running

VoltWear piezoelectric fiber sportswear, jointly developed by Under Armour and Georgia Tech, began mass production on July 30. The sportswear weaves polyvinylidene fluoride (PVDF) piezoelectric fibers directly into high-stress areas of the fabric (knees, elbows, and shoulders). When the wearer moves, the fibers' deformation generates piezoelectric signals that are rectified and stored to power wearable devices.

In running tests, VoltWear produced approximately 0.5 watts of sustained power at a pace of 160 steps per minute — sufficient to drive a heart rate sensor, GPS module, and Bluetooth chip. The fabric's power generation efficiency decreases by no more than 10% after 50 washes. The first products include running tops and compression tights, with a retail price of $349.