作者：W. Peng, Y. Zhang, Z. Zhang, H. Zhao, H. Huang, J. Zhao, J. He, B. Xu, S. Nie, S. Wang, Q. Duan
关键字：Triboelectric Nanogenerator, Self-healing, Liquid Metal, Supramolecular Polymer, Composite Material
论文来源：期刊
具体来源：Nano Letters
发表时间：2025年

Soft self-healing materials are excellent candidates for wearable devices to power sensors due to their excellent compliance, extensibility, and self-restorability. However, combining ultrafast and autonomous restorative properties with excellent mechanical capabilities for application in self-powered wearable device still poses challenges. Utilizing the high mobility and conductivity of liquid metal, this paper incorporates it into polydimethylsiloxane by a supra-molecular interfacial assembly strategy to prepare a triboelectric material with ultrahigh stretchability (12000%) and remarkable self-healing (30 min at ~25 °C). The dynamic bonds endow the material with excellent and universal self-healing ability under extreme environments (?20 °C, near infrared, and underwater), mechanical durability, and triboelectric properties (100 V and 0.81 W/m2). By integrating the material into wearable self-powered devices, real-time feedback on human joint movement is enabled. This work offers a valuable strategy to balance the trade-off between shape adaptation and self-healing, paving the way for enhanced applicability in sensing applications.