Affiliation:
1. The State Key Laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University Beijing 100084 P. R. China
2. The State Key Laboratory of Chemical Engineering and Shanghai Engineering Research Center of Hierarchical Nanomaterials School of Chemical Engineering School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 P. R. China
Abstract
AbstractFibrous supercapacitor (FSC) is of great attention in wearable electronics, but is challenged by low energy density, owing to disordered diffusion pathway and sluggish redox kinetics. Herein, using micro‐reaction strategy, an anisotropic superstructure is developed by in situ anchoring ultrafine zinc sulfine (ZnS) nanoclusters on conductively ordered macro‐microporous carbon skeleton via interfacial CSZn bonds (ZnS/SOM‐C). The anisotropic superstructure affords 3D ordered macro‐microporous pathways, large accessible surfaces, and highly dispersed active sites, which exhibit enhanced electrolyte mass diffusion, rapid interfacial charge transfer, and large faradaic ions storage (capacitance of 1158 F g−1 in KOH aqueous solution). By microfluidic spinning, the ZnS/SOM‐C is further assembled into fibrous electrode of FSC that delivers high capacitance (791 F g−1), commercial‐level energy density (172 mWh g−1), and durable stability. As a result, the FSC can realize wearable self‐powered applications (e.g., self‐cleaning ventilatory mask, smartwatch, and display), exhibiting the superiority in new energy and wearable industry.
Funder
National Natural Science Foundation of China
National Postdoctoral Program for Innovative Talents
China Postdoctoral Science Foundation
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
8 articles.
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