Extreme environment-resistant high performance triboelectric nanogenerator for energy harvesting and self-powered positioning system
Yangjiu Zhao, Haoran Yu, Ruirui Cao, Ying Liu, Shaowei Shen, Xin Li, Haoyi Wu, Dequan Sun, Haihui Liu, Caofeng Pan
Abstract
Ensuring the effectiveness of triboelectric devices under extreme environmental temperatures is essential for the global implementation of TENG-driven self-powered electronics in various regions worldwide, but achieving this is substantial challenging. In this work, a thermally stable and flexible PVDF-HFP/SEBS (PH S S O ) composite membrane doped with stearic acid (SA) and octanoic acid (OA) is constructed by the method of electrostatic spraying-assisted electrospinning. Compared with the original PHS membrane, the PH S S O membrane not only exhibits enhanced triboelectric output ( V oc , I sc , and Q sc increased by 61.48 %, 77.11 %, and 46.16 % respectively), but also maintains a relatively stable triboelectric output from room temperature to a high-temperature environment of 60°C, highlighting its remarkable reliability and stable power supply capability. Furthermore, the fabricated PH S1.5 S O1.5 triboelectric membrane exhibits outstanding hydrophobicity , flexibility, stretchability, and cyclic stability. These qualities render PH S1.5 S O1.5 based TENG to be an appealing self-powered positioning device, offering critical data such as time and location to adventurers and scientists operating in extreme Earth environments, thereby ensuring their safety. In summary, this study has developed a triboelectronegative fibrous membrane materials with excellent overall performance, which to some extent ensures the effective operation of TENG-driven self-powered devices in extreme temperature environments, providing good feasibility and successful case for applications in energy harvesting and human-machine interaction fields under harsh environments.