Achieving High‐Performance Triboelectric Nanogenerator by DC Pump Strategy

Abstract

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.

Boosting the output performance of triboelectric nanogenerators via surface engineering and structure designing

“…By enhancing the output performance of TENGs, researchers aim to maximize the conversion of mechanical energy into electrical energy. Thus far, many methods and strategies have been proposed to improve the electrical output of TENGs, such as triboelectric material selection, [41][42][43] electrical charge injection, 44 molecular surface functionalization, [45][46][47] self-charge excitation, 48 surface morphology modification 49 and structure design. 50,51 In this review, we present a comprehensive overview of the role of played by surface morphology and structure in TENGs, as well as the various engineering strategies that affect the performance of TENGs.…”

“…By enhancing the output performance of TENGs, researchers aim to maximize the conversion of mechanical energy into electrical energy. Thus far, many methods and strategies have been proposed to improve the electrical output of TENGs, such as triboelectric material selection, 41–43 electrical charge injection, 44 molecular surface functionalization, 45–47 self-charge excitation, 48 surface morphology modification 49 and structure design. 50,51…”

Wireless Sensing System Based on Biodegradable Triboelectric Nanogenerator for Evaluating Sports and Sleep Respiratory

“…Because the sensors used in wearable devices need to be characterized by small size and lightweight, the size and weight of the battery is a challenge in the design of wearable devices. [10][11][12][13][14][15][16][17] TENG is a small and lightweight device that can effectively collect the mechanical energy generated by human body motion. [18,19] TENG utilizes the friction charge effect between different interfaces and the principle of electrostatic induction to generate electricity.…”

Integration of Flexible Supercapacitors with Triboelectric Nanogenerators: A Review

“…On one hand, the TENG is low cost, highly efficient, environmentally friendly, and can be made from a wide variety of raw materials, making it very useful for various self-powered sensors [18][19][20][21]. On the other hand, the power outputs are typically irregularly sized pulses, determined by the strength of the mechanical trigger, and cannot be directly employed to power the majority of electronic devices [22][23][24]. SCs are outstanding in energy storage devices because of their high-power density, long life cycles, and environmental benignancy.…”