材料科学
超级电容器
电容器
可穿戴技术
电解质
纳米技术
电极
可穿戴计算机
数码产品
电容感应
储能
电压
计算机科学
电气工程
电容
嵌入式系统
工程类
功率(物理)
化学
物理
物理化学
量子力学
作者
Zhikui Wang,Qinmin Pan
标识
DOI:10.1002/adfm.201700690
摘要
Self‐healing will greatly improve the reliability of an energy‐storage device in case of physical damage, but the challenge remains in assembling such a smart device capable of repairing all its electroactive components simultaneously. Here, an omni‐healable supercapacitor that can spontaneously repair its electrolyte, electrodes, and even the interfaces between them in ambient conditions after mechanical damage is reported. The goal is achieved by integrating electrolyte and electrode materials into a dynamic poly(vinyl alcohol)‐based network cross‐linked by diol‐borate ester bonding. The capacitor fast restores its configuration, mechanical properties, and capacitive performances during all 15 breaking/healing cycles without external stimulus, regardless of the breaking positions. Interestingly, the capacitor can tolerate various physical deformations and even tailoring without performance deterioration. The investigation offers a facile and versatile strategy to construct an intrinsically self‐healable energy‐storage device that has potential application for portable/wearable electronics, smart apparels or flexible robots, and so on.
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