Construction and Applications of Fur-Brush Triboelectric Nanogenerators with High Performance and High Durability

As a promising distributed energy harvesting technology, triboelectric nanogenerators (TENGs) provide a viable solution to the increasing demand for energy sources in ubiquitous electronic devices. However, challenges such as wear and durability during long-term applications pose significant obstacles that require urgent attention. By focusing on the essential characteristics of TENGs and the critical factors influencing their output, we have developed a series of high-performance, durable TENG-based energy harvesting devices that ensure a continuous and stable energy supply. Our proposed strategies, including flexible contact interfaces and intermittent or continuous triboelectric charge replenishment, significantly enhance the power output density of TENG systems while achieving unprecedented structural durability. Moreover, by designing an energy management circuit specifically tailored to TENG devices, a fully self-powered system was successfully developed that can efficiently store random mechanical energy from environmental sources and deliver it to electronics on demand. This greatly enhances the practical applicability of TENG technology. These advancements lay a solid foundation for the practical implementation of TENG devices in the future.