Stretchable Triboelectric Nanogenerator Based on Liquid Metal with Varying Phases

• DOI: 10.1002/advs.202405792
• Publication Date: 2024-08-13T09:10:47Z
• Authors: Li Yang; Langang Guo; Zihan Wang; Chuizhou Meng; Jinrong Wu; Xue Chen; Abdullah Abu Musa; Xiaoqi Jiang; Huanyu Cheng
• Keywords: Nanogenerator; Liquid metal

Abstract Stretchable triboelectric nanogenerators (TENGs) represent a new class of energy‐harvesting devices for powering wearable devices. However, most them are associated with poor stretchability, low stability, and limited substrate material choices. This work presents the design demonstration highly stretchable stable TENGs based on liquid metalel ectrodes different phases. The conductive fluidic properties eutectic gallium‐indium (EGaIn) in serpentine microfluidic channel ensure robust performance EGaIn‐based TENG upon stretching over several hundred percent. bi‐phasic EGaIn (bGaIn) from oxidation lowers surface tension increases adhesion printing diverse substrates high output parameters. optimization electrode shapes bGaIn‐based can reduce device footprint weight, while enhancing stretchability. applications EGaIn‐ include smart elastic bands human movement monitoring carpets integrated data transmission/processing modules headcount monitoring/control. Combining concept origami paper‐based bGaIn to improve per unit area. integration bGaIn‐TENG self‐healing polymer corrosion resistance against acidic alkaline solutions further facilitates its use various challenging extreme environments.