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Supercapacitive energy storage based on ion-conducting channels in hydrophilized organic network

  1. Xian Ning Xie1,*,
  2. Junzhong Wang1,
  3. Kian Keat Lee1,2,
  4. Kian Ping Loh1,2

Article first published online: 23 JUN 2011

DOI: 10.1002/polb.22295

Issue

Journal of Polymer Science Part B: Polymer Physics

Journal of Polymer Science Part B: Polymer Physics

Volume 49, Issue 17, pages 1234–1240, 1 September 2011

Additional Information

How to Cite

Xie, X. N., Wang, J., Lee, K. K. and Loh, K. P. (2011), Supercapacitive energy storage based on ion-conducting channels in hydrophilized organic network. J. Polym. Sci. B Polym. Phys., 49: 1234–1240. doi: 10.1002/polb.22295

Author Information

  1. 1

    NUS Nanoscience and Nanotechnology Initiative (NUSNNI), National University of Singapore, Singapore, 117542

  2. 2

    Department of Chemistry, National University of Singapore, Singapore, 117543

*NUS Nanoscience and Nanotechnology Initiative (NUSNNI), National University of Singapore, Singapore, 117542

Publication History

  1. Issue published online: 27 JUL 2011
  2. Article first published online: 23 JUN 2011
  3. Manuscript Accepted: 31 MAY 2011
  4. Manuscript Revised: 23 MAY 2011
  5. Manuscript Received: 14 APR 2011

Funded by

  • Singapore-MIT Alliance for Research and Technology (SMART) Ignition. Grant Number: ING10022-ENG(IGN

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Keywords:

  • hydrophilized network;
  • ion-conducting channels;
  • supercapacitor

Abstract

Conventional electrode materials for supercapacitors are based on nanoscaled structures with large surface areas or porosities. This work presents a new electrode material, the so-called hydrophilized polymer network. The network has two unique features: 1) it allows for high capacitance (up to 400 F/g) energy storage in a simple film configuration without the need of high-surface-area nanostructures; 2) it is unstable in water, but becomes extremely stable in electrolyte with high ionic strength. The above features are related to the hydrophilizing groups in the network which not only generate hydrated ionic conduction channels, but also enable the cross-linking of the network in electrolyte. Because of its practical advantages such as easy preparation and intrinsic stability in electrolyte, the hydrophilized network may provide a new route to high-performance supercapacitive energy storage. © 2011 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 49: 1234–1240, 2011

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