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Nishuang Liu, Wenzhen Ma, Jiayou Tao, Xianghui Zhang, Jun Su, Luying Li, Congxing Yang, Yihua Gao, Dmitri Golberg and Yoshio Bando Cable-Type Supercapacitors of Three-Dimensional Cotton Thread Based Multi-Grade Nanostructures for Wearable Energy Storage Advanced Materials 25

Version of Record online: 29 JUL 2013 | DOI: 10.1002/adma.201301311

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A novel cable-type flexible supercapacitor with excellent performance is fabricated using 3D polypyrrole(PPy)-MnO2-CNT-cotton thread multi-grade nanostructure-based electrodes. The multiple supercapacitors with a high areal capacitance 1.49 F cm−2 at a scan rate of 1 mV s−1 connected in series and in parallel can successfully drive a LED segment display. Such an excellent performance is attributed to the cumulative effect of conducting single-walled carbon nanotubes on cotton thread, active mesoporous flower-like MnO2 nanoplates, and PPy conductive wrapping layer improving the conductivity, and acting as pseudocapacitance material simultaneously.

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