Dynamic Thermoregulatory Textiles Woven from Scalable-Manufactured Radiative Electrochromic Fibers

Textiles can be promising next-generation wearable thermal management systems by exhibiting tunable infrared emissivity for dual-mode control of cooling/warming, yet textiles often exhibit constant infrared emission. Herein, a dynamic thermoregulatory textile is woven from scalable-manufactured radiative electrochromic fibers and is easily driven by a low voltage in a manner that results in a modulated emissivity of Delta e approximate to 0.35. Through a synergistic combination of the spiral outer electrode and electrochemically tunable carbon nanotube layer, excellent electrochemical controllability of the fibers is achieved over 100-m length within 5s because of the decreased internal resistance with increasing length. As a result, the thermoregulatory textile suppresses substantial temperature variation and ensures excellent temperature regulation within approximate to 1.6 degrees C for simulated skin (much better than that of traditional textiles: approximate to 2.9 degrees C) under an ambient temperature fluctuation of 11.2 degrees C. Finally, wearable infrared camouflage and invisible infrared displays are also demonstrated by weaving or embroidering the radiative electrochromic fibers onto clothing. A breathable and low-voltage-driven dynamic thermoregulatory textile is woven from scalable-manufactured radiative electrochromic fibers. The thermoregulatory textile suppresses substantial temperature variation and ensures excellent temperature regulation within approximate to 1.6 degrees C for simulated skin under an ambient temperature fluctuation of 11.2 degrees C, contributing to the reduction of the energy costs associated with heating/cooling in buildings or expanding the survival ability in demanding environments.image