@article{Wang2026, 
author = {Shasha Wang and Leqian Wei and Fengkai Zhou and Yimeng Li and Jianhua Zhu and Qian Zhang and Lizhen Lan and Zeyu Wang and Fujun Wang and Lu Wang and Jifu Mao},
title = {Strain-insensitively stretchable yarn electrodes for self-powered sensing textiles},
year = {2026},
journal = {Nano Research Energy},
volume = {5},
pages = {e9120184},
keywords = {self-powered textiles, strain-insensitive supercapacitors, yarn sensor},
url = {https://www.sciopen.com/article/10.26599/NRE.2025.9120184},
doi = {10.26599/NRE.2025.9120184},
abstract = {Self-powered textiles integrated energy storage and sensors have generated growing interest in the area of wearable electronics. However, most current elastic supercapacitors designed for wearable self-powered systems exhibit insufficient strain-insensitivity to accommodate the intricate deformations of the human body. In this work, MXene is being explored for strain-insensitive one-dimensional (1D) energy storage devices by introduction of reduced graphene oxide (rGO) and polypyrrole (PPy) to create a composite yarn electrode via pre-stretching in-situ polymerization strategy, which also can be integrated into self-powered wearable sensing textile. The yarn electrodes incorporating rGO effectively minimize crack formation at high strains, showcasing an enhanced capacitance of 51.35 mF·cm−1 and retaining ~95% of their original capacitance at 200% strain. The resulting symmetric supercapacitor exhibits strain insensitivity up to 200% and delivers stability of electrochemical behavior under real-time dynamic stretching conditions independent of the strain rate. Furthermore, yarn pressure sensing leveraging the resistance change of stripe coating structure achieves high sensitivity of 1.08 kPa−1. Therefore, the integrated self-powered textiles allow convenient use for transmission of Morse code real-time and provide a feasible routine burgeoning transformative telemedicine diagnosis.}
}