Textile Triboelectric Nanogenerators Simultaneously Harvesting Multiple High-Entropy Kinetic Energies

Distributed renewable kinetic energies are ubiquitous but with irregular amplitudes and frequencies, which, as one category of high-entropy energies, are crucial for next-generation self-powered electronics. Herein, we present a flexible waterproof dual-mode textile triboelectric nanogenerator (TENG), which can simultaneously scavenge multiple high-entropy kinetic energies, including human motions, raindrops, and winds. A freestanding-mode textile TENG (F-TENG) and a contact-separation-mode textile TENG (CS-TENG) are integrated together. The structure parameters of the textile TENG are optimized to improve the output performances. The raindrop can generate a voltage of up to similar to 4.3 V and a current of about similar to 6 mu A, while human motion can generate a voltage of over 120 V and a peak power density of similar to 500 mW m(-2). The scavenged electrical energies can be stored in capacitors for powering small electronics. Therefore, we demonstrated a facile preparation of a TENG-based energy textile that is highly promising for kinetic energy harvesting and self-powered electronics.

Automated summary

The article introduces a new flexible waterproof dual-mode textile triboelectric nanogenerator that can simultaneously scavenge multiple high-entropy kinetic energies, including human motion, raindrops, and winds. The optimized structure parameters improve output performance, and the harvested electrical energy can be used to power small electronic devices.