Mechanical Regulation Triboelectric Nanogenerator with Controllable Output Performance for Random Energy Harvesting. Issue 22 (27th April 2020)

• Record Type: Journal Article
• Authors: Yin, Mengfei; Lu, Xiaohui; Qiao, Guangda; Xu, Yuhong; Wang, Yuqi; Cheng, Tinghai; Wang, Zhong Lin
• Is Part Of: Advanced energy materials. Volume 10:Issue 22(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-04-27
• Subjects: controllable output performance -- mechanical regulation -- random excitation -- triboelectric nanogenerators -- wave energy harvesting; Energy harvesting -- Materials -- Periodicals; Energy conversion -- Materials -- Periodicals; Energy storage -- Materials -- Periodicals; Photovoltaics -- Periodicals; Fuel cells -- Periodicals; Thermoelectric materials -- Periodicals; 621.31
• DOI: 10.1002/aenm.202000627
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract: Recycling of random mechanical energy in the environment has become an important research hotspot. The triboelectric nanogenerators (TENGs) were invented to harvest energy, and have been widely applied due to their simple structure, small size, and low cost. This paper reports a mechanical regulation triboelectric nanogenerator (MR‐TENG) for the first time with controllable output performance used to harvest random or irregular energy in the environment. It comprises a transmission unit, switch structure, generator unit, flywheel, and shell. Random linear motion or rocking motion is transferred via the transmission unit to the flywheel. The rotor of the generator unit fixed on the flywheel and the stator of the generator unit fixed on the shell combine. By controlling the storage and release of energy in the flywheel, the switch structure assists the flywheel to convert random or irregular energy into a controllable and stable energy output. The MR‐TENG can generate an open‐circuit voltage of 350 V, a short‐circuit current of 12 μA, a transfer charge of 130 nC, and a peak power of 2.52 mW. Furthermore, a thermometer and more than 300 light emitting diodes (LEDs) are separately powered by this MR‐TENG in simulated water waves, demonstrating its potential application in water wave energy harvesting. Abstract : The research philosophy of mechanical regulation triboelectric nanogenerator with controllable output performance for harvesting random energy is proposed for the first time. Through the combination of the energy storage structure and the control switch structure, the controllable output of triboelectric nanogenerator under random excitation is achieved. Furthermore, a thermometer and more than 300 LEDs are powered by a mechanical regulation triboelectric nanogenerator.