Achieving High Power Density and Durability of Sliding Mode Triboelectric Nanogenerator by Double Charge Supplement Strategy. Issue 33 (21st July 2022)

• Record Type: Journal Article
• Authors: Chen, Pengfei; Luo, Yingjin; Cheng, Renwei; Shu, Sheng; An, Jie; Berbille, Andy; Jiang, Tao; Wang, Zhong Lin
• Is Part Of: Advanced energy materials. Volume 12:Issue 33(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-21
• Subjects: durability -- electrical load capacity -- energy harvesting -- triboelectric nanogenerators -- power density; 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.202201813
• Languages: English
• ISSNs: 1614-6832

Abstract

Abstract: Triboelectric nanogenerators (TENGs), a promising energy harvesting technology for distributed power sources, faces inevitable issues regarding long‐term wear and durability. However, current low‐wear TENGs are impaired by lower performances due to low charge density. Here, both issues are addressed using a double charge supplement TENG (DCS‐TENG). Adding two low friction charge brushes allows the DCS‐TENG to achieve a high surface charge density (76.5 µC m −2 ) and power density (697.5 mW m −2 Hz –1 ), setting a new record among previously reported low‐wear TENGs. Moreover, the device exhibits unprecedented durability with an attenuation of only 5% after continuous operation for 110 h (3 960 000 cycles). Using a customized energy management module, a 3 × 7 hygrothermograph array, a high‐power vehicle's radar and accelerometer modules are stably powered, demonstrating the DCS‐TENG's strong electrical load capacity. This strategy provides a facile and effective path to conjointly boost power output and durability of TENGs, taking them to the next level for practical applications. Abstract : A non‐contact triboelectric nanogenerator (TENG) with a double charge supplement is constructed by only introducing two charge brushes with low friction coefficients to achieve a high average power density and impressive durability, which paves the way for using TENG to power the broad practical electrical appliances during long‐term operation.