超级电容器
材料科学
功率密度
纳米技术
灵活性(工程)
储能
可穿戴计算机
电极
电化学
功率(物理)
计算机科学
嵌入式系统
统计
物理
物理化学
量子力学
化学
数学
作者
Guo-Tao Xiang,Na Chen,Bin Liu,Jide Xu,Raúl D. Rodriguez,Evgeniya Sheremet,Yongda Hu,Jinju Chen
出处
期刊:Nano Energy
[Elsevier]
日期:2023-12-01
卷期号:118: 108936-108936
被引量:8
标识
DOI:10.1016/j.nanoen.2023.108936
摘要
Stable and continuous detection of physiological signals without an external power supply is a crucial technology to realize wearable electronics as the next generation of flexible electronic devices. In this work, a self-powered smart system with flexible solid-state Zn-Co MOFs@MXene supercapacitors and polyacrylamide-BaTiO3/NaCl (PAM-BTO/NaCl) organic ionic hydrogel sensors are designed. The supercapacitor demonstrates a high energy density of 51 Wh/kg at a power density of 1.59 kW/kg. In particular, it maintains exceptional mechanical flexibility under different bending environments. The resistance change rate of the organic ionic hydrogel sensor exhibits a linear response within the strain range of 0–400 % and 400–600 %, respectively, and it shows outstanding electromechanical stability with almost unchanged performance under multiple identical tensile strains. Furthermore, the self-powered integrated system can be conveniently used for real-time detection of human motion and small strains. These findings highlight the unlimited application potential of self-powered integrated system in wearable devices.
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