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Coaxial wet-spun yarn supercapacitors for high-energy density and safe wearable electronics.
Nat Commun. 2014 May 02; 5:3754.NC

Abstract

Yarn supercapacitors have great potential in future portable and wearable electronics because of their tiny volume, flexibility and weavability. However, low-energy density limits their development in the area of wearable high-energy density devices. How to enhance their energy densities while retaining their high-power densities is a critical challenge for yarn supercapacitor development. Here we propose a coaxial wet-spinning assembly approach to continuously spin polyelectrolyte-wrapped graphene/carbon nanotube core-sheath fibres, which are used directly as safe electrodes to assembly two-ply yarn supercapacitors. The yarn supercapacitors using liquid and solid electrolytes show ultra-high capacitances of 269 and 177 mF cm(-2) and energy densities of 5.91 and 3.84 μWh cm(-2), respectively. A cloth supercapacitor superior to commercial capacitor is further interwoven from two individual 40-cm-long coaxial fibres. The combination of scalable coaxial wet-spinning technology and excellent performance of yarn supercapacitors paves the way to wearable and safe electronics.

Authors+Show Affiliations

MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24786366

Citation

Kou, Liang, et al. "Coaxial Wet-spun Yarn Supercapacitors for High-energy Density and Safe Wearable Electronics." Nature Communications, vol. 5, 2014, p. 3754.
Kou L, Huang T, Zheng B, et al. Coaxial wet-spun yarn supercapacitors for high-energy density and safe wearable electronics. Nat Commun. 2014;5:3754.
Kou, L., Huang, T., Zheng, B., Han, Y., Zhao, X., Gopalsamy, K., Sun, H., & Gao, C. (2014). Coaxial wet-spun yarn supercapacitors for high-energy density and safe wearable electronics. Nature Communications, 5, 3754. https://doi.org/10.1038/ncomms4754
Kou L, et al. Coaxial Wet-spun Yarn Supercapacitors for High-energy Density and Safe Wearable Electronics. Nat Commun. 2014 May 2;5:3754. PubMed PMID: 24786366.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Coaxial wet-spun yarn supercapacitors for high-energy density and safe wearable electronics. AU - Kou,Liang, AU - Huang,Tieqi, AU - Zheng,Bingna, AU - Han,Yi, AU - Zhao,Xiaoli, AU - Gopalsamy,Karthikeyan, AU - Sun,Haiyan, AU - Gao,Chao, Y1 - 2014/05/02/ PY - 2013/10/11/received PY - 2014/03/28/accepted PY - 2014/5/3/entrez PY - 2014/5/3/pubmed PY - 2014/5/3/medline SP - 3754 EP - 3754 JF - Nature communications JO - Nat Commun VL - 5 N2 - Yarn supercapacitors have great potential in future portable and wearable electronics because of their tiny volume, flexibility and weavability. However, low-energy density limits their development in the area of wearable high-energy density devices. How to enhance their energy densities while retaining their high-power densities is a critical challenge for yarn supercapacitor development. Here we propose a coaxial wet-spinning assembly approach to continuously spin polyelectrolyte-wrapped graphene/carbon nanotube core-sheath fibres, which are used directly as safe electrodes to assembly two-ply yarn supercapacitors. The yarn supercapacitors using liquid and solid electrolytes show ultra-high capacitances of 269 and 177 mF cm(-2) and energy densities of 5.91 and 3.84 μWh cm(-2), respectively. A cloth supercapacitor superior to commercial capacitor is further interwoven from two individual 40-cm-long coaxial fibres. The combination of scalable coaxial wet-spinning technology and excellent performance of yarn supercapacitors paves the way to wearable and safe electronics. SN - 2041-1723 UR - https://www.unboundmedicine.com/medline/citation/24786366/Coaxial_wet_spun_yarn_supercapacitors_for_high_energy_density_and_safe_wearable_electronics_ L2 - http://dx.doi.org/10.1038/ncomms4754 DB - PRIME DP - Unbound Medicine ER -
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