Active Deformable and Flexible Triboelectric Nanogenerator Based on Super-Light Clay

Abstract

Triboelectric nanogenerators (TENGs) are demonstrated to possess great superiority in the field of low-frequency and high-entropy energy harvesting. Here, a kind of friction material, super-light clay (SLC), with outstanding stretchability and shape/size changeability is introduced to develop contact-separation triboelectric nanogenerators (SLC-TENGs), which exhibit outstanding flexible, shape-changeable, and adaptable properties but simple preparation processes. A high and stable electrical output can be achieved from the simple-structured SLC-TENG. The peak power density of the SLC-TENG output reaches up to 0.33 W/m2 under an effective contact with an area of 9 cm2 and an external load resistance of 50 MΩ. In addition, a balloon-structured TENG was also prepared with the filling of several SLC balls. The electrical signals can be generated even just by a slight shaking, revealing great application potential in the Internet of Things systems and self-powered sensors by energy harvesting from wind, ocean, human body movements, etc.

Recent progress towards smart transportation systems using triboelectric nanogenerators

“…Hybrid TENG/EMG and pendulum structures have also been effectively designed by many groups [124][125][126][127][128][129][130][131]. Ren et al showed a self-powered route avoidance warning system for ocean navigation (HW-NG) in 2021 using hybrid TENG/EMG and pendulum structures [124].…”

Vertical Blinds-Inspired Triboelectric Nanogenerator for Wind Energy Harvesting and Self-Powered Wind Speed Monitoring

“…Despite their effective power generation, these turbines face limitations due to the need for high wind speeds, substantial land space, and environmental impacts, including noise pollution and aesthetic concerns. This has led to an increased interest in developing smaller, more adaptable wind energy harvesters capable of operating efficiently at lower wind speeds and integrating into diverse environments. − …”

Self-powered PtNi-polyaniline films for converting rain energy into electricity

“…There has been a long pursuit for energy-harvesting or -converting materials to address the issues of energy crisis and environmental pollution, further realizing the sustainable development of our society. [1][2][3][4][5] Many advanced technologies and pieces of equipment have been successfully utilized to capture energy from nature, including solar energy, [6][7][8][9] wind energy, [10][11][12][13] tidal energy, [14][15][16][17] etc., and further convert them into electricity to meet our living needs. Unfortunately, the total power output of as-developed devices is limited by the weather.…”