Self-Assembly of Integrated Tubular Microsupercapacitors with Improved Electrochemical Performance and Self-Protective Function
Wang J, Bandari VK, Kamaushenko D, Li Y, Li F, Zhang P, Baunack S, Karnaushenko DD, Becker C, Faghih M, Kang T, Duan S, Zhu M, Zhuang X, Zhu F, Feng X, Schmidt OG (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 13
Pages Range: 8067-8075
Journal Issue: 7
Abstract
Inspired by origami art, we demonstrate a tubular microsupercapacitor (TMSC) by self-assembling two-dimensional (2D) films into a "swiss roll" structure with greatly reduced footprint area. A polymeric framework consisting of swelling hydrogel and polyimide layers ensures excellent ion transport between poly(3,4-ethylenedioxythiophene) (PEDOT)-based electrodes and provides efficient self-protection of the TMSC against external compression up to about 30 MPa. Such TMSCs exhibit an areal capacitance of 82.5 mF cm-2 at 0.3 mA cm-2 with a potential window of 0.8 V, an energy density and power density of 7.73 μWh cm-2 and 17.8 mW cm-2 (0.3 and 45 mA cm-2), and an improved cycling stability with a capacitance retention up to 96.6% over 5000 cycles. Furthermore, as-fabricated TMSC arrays can be detached from their surface and transferred onto target substrates. The connection of devices in parallel/series greatly improves their capacity and voltage output. Overall, our prototype devices and fabrication methodology provide a promising route to create integratable microscale tubular energy storage devices with an efficient self-protection function and high performance for future miniaturized electronics.
Involved external institutions
Technische Universität Chemnitz
Germany (DE)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
Technische Universität Dresden
Germany (DE)
Germany (DE)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Wang, J., Bandari, V.K., Kamaushenko, D., Li, Y., Li, F., Zhang, P.,... Schmidt, O.G. (2019). Self-Assembly of Integrated Tubular Microsupercapacitors with Improved Electrochemical Performance and Self-Protective Function. ACS nano, 13(7), 8067-8075. https://doi.org/10.1021/acsnano.9b02917
MLA:
Wang, Jinhui, et al. "Self-Assembly of Integrated Tubular Microsupercapacitors with Improved Electrochemical Performance and Self-Protective Function." ACS nano 13.7 (2019): 8067-8075.
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