超级电容器
自愈
材料科学
纳米技术
电容感应
自愈材料
电极
电化学
电子皮肤
电气工程
工程类
化学
医学
替代医学
物理化学
病理
作者
Jing Dai,Haili Qin,Wen-Xuan Dong,Huai-Ping Cong,Shu‐Hong Yu
出处
期刊:Nano Letters
[American Chemical Society]
日期:2022-06-24
卷期号:22 (15): 6444-6453
被引量:14
标识
DOI:10.1021/acs.nanolett.2c01635
摘要
Realizing autonomous self-healing and high stretchability of flexible supercapacitors over a wide temperature range remains a big challenge because of simultaneous incorporation of self-healing, stretchable and temperature-tolerant elements into a device as well as unfavorable electrochemical kinetics in harsh conditions. Here, we demonstrate for the first time an autonomous self-healing and intrinsically stretchable supercapacitor that can work at all-climate environments assembled by universally self-healing and highly stretchable organohydrogel electrodes with record-high temperature-invariant conductivity of ∼965 S/cm. Benefiting from multiple hydrogen bonding and dynamic metal coordination combined with electrochemistry-favorable components and integrated device configuration, the supercapacitor exhibits outstanding long-term stability, high stretchability, instantaneous and complete capacitive self-healability, and real-time mechanical healing at harsh temperatures from −35 to 80 °C. The superiorities in stretchability, self-healability, and all-climate tolerance enable the supercapacitor presented here as the best performer among the flexible supercapacitors reported to date.
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