Rare Metals

, Volume 37, Issue 6, pp 536–542 | Cite as

Flexible ultrathin all-solid-state supercapacitors

  • Rui Wang
  • Qing-Rong Wang
  • Min-Jie Yao
  • Ke-Na Chen
  • Xin-Yu Wang
  • Li-Li Liu
  • Zhi-Qiang Niu
  • Jun Chen


The flexible ultrathin all-solid-state supercapacitors with good electrochemical and mechanical performance were fabricated by the facile methods. The single-wall carbon nanotubes (SWCNTs)–polyaniline (PANI) film electrodes and poly(vinyl alcohol) (PVA)/H3PO4 electrolyte film were prepared by spray-printing and spin-coating strategies, respectively. Thus, the thickness of a supercapacitor is only 8.4 μm. When the mass ratio of SWCNT to PANI is 1:1, the tensile strength and Young’s modulus of the electrode are 10.9 and 655 MPa, respectively. The interior contact resistance of the supercapacitors based on this electrode is only 15–30 Ω. Furthermore, the specific capacitance of this electrode can reach about 355.5 F·g−1, and the supercapacitor based on this electrode maintains 87.2% of its initial specific capacitance over 5000 charging/discharging cycles. Moreover, the supercapacitor shows an excellent electrochemical stability at different bending states. Therefore, the all-solid-state supercapacitors prepared by our strategies would meet the demands of wearable, lightweight, and compact energy storage devices.


Supercapacitor Ultrathin Spray printing Carbon nanotube 



This work was financially supported by the Scientific Research Program of Tianjin Municipal Education Commission (No. 2017KJ248).


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Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and EngineeringTianjin University of TechnologyTianjinChina
  2. 2.Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of ChemistryNankai UniversityTianjinChina

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