A Triboelectric Nanogenerator Array for a Self-Powered Boxing Sensor System

In recent years, researchers have made substantial efforts to enhance the output performance of triboelectric devices and expand their application field. Here, we designed an array triboelectric nanogenerator (A-TENG) using poly[(vinylidene fluoride)-co-dimethylsiloxane] P(VDF-DMS) to gain the impact energy generated by the boxing motion, while it can also detect different types of boxing by the output voltage signal. The P(VDF-DMS) film and nylon film form the triboelectric pair. The hollow array structure design only needs a complete conductive electrode and realizes the self-supporting effect of the device at the same time. In addition, the electrical output signal can reflect the boxing type, such as heavy punches, fast boxing, and circular fast boxing. This design provides a novel triboelectric material and self-supported array structure and expands the application of TENG devices in sports monitoring.