材料科学
超级电容器
电解质
储能
涂层
电极
复合材料
电容
可伸缩电子设备
聚氨酯
功率密度
纳米技术
化学工程
数码产品
功率(物理)
量子力学
物理
工程类
物理化学
化学
作者
Hongchun Mu,Xinming Huang,Wenqiang Wang,Xiaohui Tian,Zhisheng An,Gengchao Wang
标识
DOI:10.1021/acsami.1c17186
摘要
Stretchable supercapacitors (SSCs) are promising energy storage devices for emerging wearable electronics. However, the low-energy density and poor deformation performance are still a challenge. Herein, an amphiphilic polyurethane-based organo/hydrogel electrolyte (APUGE) with a H2O/AN-in-salt (H2O/AN-NaClO4) is prepared for the first time. The as-prepared APUGE shows a wide voltage window (∼2.3 V), good adhesion, and excellent resilience. In addition, the intrinsically stretchable electrodes are prepared by coating the activated carbon slurry onto the PU/carbon black/MWCNT conductive elastic substrate. Based on the strong interface adhesion of the PU matrix, the as-assembled SSC delivers high-energy density (5.65 mW h cm-3 when the power density is 0.0256 W cm-3) and excellent deformation stability with 94.5% capacitance retention after 500 stretching cycles at 100% strain. This fully integrated construction concept is expected to be extended to multisystem stretchable metal ion batteries, stretchable lithium-sulfur batteries, and other stretchable energy storage devices.
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