High Durable Rotary Triboelectric Nanogenerator Enabled by Ferromagnetic Metal Particles as a Friction Material

Advanced Functional Materials, Год журнала: 2023, Номер 33(48)

Опубликована: Сен. 1, 2023

Abstract Rotary sliding mode triboelectric nanogenerator (TENG) provides high efficiency, a continuous and output strategy for harvesting low‐frequency mechanical energy. However, poor durability owing to material abrasion during restricts its practical application. Here, novel ferromagnetic metal particle‐based (FMP‐TENG) is proposed, which couples the unlimited point contact rolling motion of particles instead planar film improve TENG. Besides, due extensively enhanced area by particles, FMP‐TENG improves electric output, achieving charge density 103 µC m −2 peak power 400 mW Hz −1 . After 10 000 cycle running‐in, exhibits excellent durability, retains 97% 110 cycles. In addition, powder mass sensor based on also designed, can effectively detect change in dynamic platform. A proposed here solve problem TENG applications.

Язык: Английский

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Ultra‐High DC and Low Impedance Output for Free‐Standing Triboelectric Nanogenerator

Advanced Energy Materials, Год журнала: 2023, Номер 13(47)

Опубликована: Ноя. 1, 2023

Abstract The free‐standing triboelectric nanogenerator (F‐S TENG) is demonstrated to be an efficient energy conversion device. However, limited by the inherent features of high‐voltage, low alternating current and high output impedance, TENGs suffer from inefficient utilization difficulties in practical applications. Therefore, harvest mechanical optimization are currently critical issues for TENGs. Here, a strategy proposed optimizing coupling F‐S TENG capacitor auto‐conversion circuit (CAC). For first time, specific idea explicitly reduce impedance management circuit. Eventually, density 32 A m −2 charge 1.75 mC achieved, which 8.78 times higher than previous works. power reach 124 W 252 mJ under 470 150 Ω respectively. Then, 5000 LEDs two lamps rated at 220 V 50 manually illuminated. resulting pulse utilized as trigger source thyristor, enabling DC contactless switching. This work provides novel approach realize high‐performance effectively external load impedance.

Язык: Английский

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Direct‐Current Triboelectric Nanogenerators Based on Contact–Separation Mode and Conductive–Adhesive Interface

Advanced Functional Materials, Год журнала: 2024, Номер 34(28)

Опубликована: Март 3, 2024

Abstract Direct‐current triboelectric nanogenerators (DC‐TENGs), which are used in smart electronics and energy storage, have attracted tremendous scientific interest owing to their rectification‐free high utilization efficiency. In this study, the authors propose a new type of DC‐TENG that operates contact–separation mode with unique adhesive–conductive interface for first time. The results demonstrate TENG output increases increasing interfacial adhesion strength; both adhesive polymer conductive tribomaterial essential factors DC output. proposed mechanism is based on mechanoion generation via covalent bond cleavage during material transfer charge leakage effect. Specifically, exhibits frequency‐decreasing force‐enhancing characteristics. It can directly drive LEDs or commercial capacitors. By integrating stretchable electrode, an adhesive‐based single‐electrode be as strain sensor detector. This work presents conventional two‐electrode configuration provides perspectives fundamental research applications DC‐TENGs.

Язык: Английский

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A Review of Material Design for High Performance Triboelectric Nanogenerators: Performance Improvement Based on Charge Generation and Charge Loss

Nanoscale Advances, Год журнала: 2024, Номер 6(18), С. 4522 - 4544

Опубликована: Янв. 1, 2024

This review summarizes the relevant material-design strategies for improving output performance of TENGs based on charge generation and loss.

Язык: Английский

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A current-enhanced triboelectric nanogenerator with crossed rollers for harvesting wave energy

Nano Energy, Год журнала: 2023, Номер 117, С. 108885 - 108885

Опубликована: Сен. 9, 2023

Язык: Английский

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