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Issue 30, 2016
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Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

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Abstract

Recently, fiber-shaped yarn supercapacitors (YSCs) have attracted extensive attention due to their merits of small volume, high flexibility and potential to be woven in textiles for future wearable electronics. PEDOT:PSS possesses properties of high-redox capacitance, high conductivity and high intrinsic flexibility, so PEDOT:PSS yarn electrodes are quite promising in the field of YSCs. However, to the best of our knowledge, twisted yarns based on wetspun PEDOT:PSS fibers for fiber-shaped YSCs have not been reported. Herein, we develop a new coagulation bath with CaCl2 in aqueous solution for preparing meter-long PEDOT:PSS fibers. The PEDOT:PSS fibers with good mechanical properties can be easily woven, sewed, knotted and braided as the YSC electrode. The PEDOT:PSS fiber-based YSCs show a high areal capacitance of 119 mF cm−2 and areal energy density of 4.13 μW h cm−2. Meanwhile, the all-solid-state YSCs are flexible and robust enough to tolerate the long-term and repeated bending without an obvious capacitance drop.

Graphical abstract: Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

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Publication details

The article was received on 17 May 2016, accepted on 29 Jun 2016 and first published on 30 Jun 2016


Article type: Communication
DOI: 10.1039/C6TA04081K
J. Mater. Chem. A, 2016,4, 11616-11624

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    Twisted yarns for fiber-shaped supercapacitors based on wetspun PEDOT:PSS fibers from aqueous coagulation

    D. Yuan, B. Li, J. Cheng, Q. Guan, Z. Wang, W. Ni, C. Li, H. Liu and B. Wang, J. Mater. Chem. A, 2016, 4, 11616
    DOI: 10.1039/C6TA04081K

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