Triboelectric Basalt Textiles Efficiently Operating within an Ultrawide Temperature Range

Abstract

With the continuous upsurge in demand for wearable energy, nanogenerators are increasingly required to operate under extreme environmental conditions. Even though they are at the cutting edge of technology, nanogenerators have difficulty producing high‐quality electrical output at very extreme temperatures. Here, a triboelectric basalt textile (TBT) with an ultra‐wide operational temperature range (‐196 to 520 °C) was created employing basalt material as the main body. The output power density of the TBT, in contrast to most conventional nanogenerators, would counterintuitively rise by 2.3 times to 740.6 mW m−2 after heating to 100 °C because the high temperature will enhance the material's interface polarization and electronic kinetic energy. The TBT retains around 55% of its initial electrical output even after heating in the flame of an alcohol lamp (520 °C). Surprisingly, the TBT's output voltage may retain over 85% of its initial value even after submerging in liquid nitrogen. The TBT's exceptional resistance to heat and cold indicates its possible use in high and low latitudes, high altitudes, deserts, and even space settings.This article is protected by copyright. All rights reserved