Stretchable and Elastic Triboelectric Nanogenerator with Liquid-Metal Grid-Patterned Single Electrode for Wearable Energy-Harvesting Devices.

Autor: Wei Y; Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea., Bhuyan P; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea., Zhang Q; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea., Kim S; Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea., Bae Y; Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, 54896, Republic of Korea., Singh M; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea., Park S; School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
Jazyk: angličtina
Zdroj: Macromolecular rapid communications [Macromol Rapid Commun] 2024 Nov; Vol. 45 (21), pp. e2400321. Date of Electronic Publication: 2024 Sep 16.
DOI: 10.1002/marc.202400321
Abstrakt: Triboelectric nanogenerators (TENGs) have garnered significant attention as efficient energy-harvesting systems for sustainable energy sources in the field of self-powered wearable devices. Various conductive materials are used to build wearable devices, among which, gallium-based liquid metal (LM) is a preferred electrode owing to its fluidity and metallic conductivity even when strained. In this study, a stretchable, elastic, and wearable triboelectric nanogenerator is designed using a single electrode fabricated by embedding LM grid patterns into a stretchable silicone substrate through a two-step spray-coating process. Contrary to conventional double-electrode TENG that is challenging to integrate to human body, the LM grid-patterned single-electrode TENG (LMG-SETENG) has a simplified design and provides more flexibility. The LMG-SETENG can generate voltages of up to 100 V via triboelectrification upon contact with the human body, even under various degrees of strain, owing to the fluidity of the LM electrode. The generated energy can be utilized as a sustainable energy source to power various small appliances. Moreover, the proposed LMG-SETENG can be utilized in soft robotics, electronic skin, and healthcare devices.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
Externí odkaz: