Achieving High‐Performance Triboelectric Nanogenerator by DC Pump Strategy

Triboelectric nanogenerator (TENG) has been demonstrated as a promising solution for powering widely distributed electronics in the new era of Internet of Things (IoTs), however, high‐performance TENG always relies on tribo‐materials with high triboelectric property. Herein, a simple self‐charge excitation technique that charge injection is directly realized by self‐generated electrostatic breakdown charge instead of voltage‐multiplying circuit is proposed to break through the limitation of triboelectrification. By using the designed electrostatic breakdown charge excitation TENG (EBE‐TENG), the output performance of poor tribo‐material based TENG such as polyethylene (PE) can be enhanced by 5.7 times, which even approximates that of high tribo‐material based TENG such as fluorinated ethylene propylene (FEP). Moreover, electrostatic breakdown charge excitation technique also exhibits a universal applicable ability for other different triboelectric materials. This work not only greatly simplifies the charge excitation system, but also broadens the availability of materials for achieving high‐performance TENG. An electrostatic breakdown excitation triboelectric nanogenerator is developed by integrating a DC pump source and sliding‐mode TENG in a single device, which not only simplifies the structure of charge excitation system, but also breaks the limits of triboelectric property for tribo‐materials, thus achieves 5.7‐fold enhancement of output charge density by utilizing polyethylene (PE) with poor triboelectrification performance.