Jump to main content
Jump to site search


Multifunctional nanocomposite structural separators for energy storage

Author affiliations

Abstract

Separators in energy storage devices such as batteries and supercapacitors are critical elements between the much-researched anodes and cathodes. Here we present a new “structural separator” comprised of electrically-insulating aligned alumina nanotubes, which realizes a structural, or mechanically robust, function in addition to allowing charge transfer. The polymer nanocomposite structural separator is demonstrated in a supercapacitor cell and also as an interface reinforcement in an aerospace-grade structural carbon fiber composite. Relative to a polymeric commercial separator, the structural separator shows advantages both electrically and structurally: ionic conductivity in the supercapacitor cell is doubled due to the nanotubes disrupting the semi-crystallinity in the polymer electrolyte, and the structural separator creates an interface that is 50% stronger in the advanced composite. In addition to providing direct benefits to existing energy storage devices, the structural separator is best suited to multifunctional structural energy storage applications.

Graphical abstract: Multifunctional nanocomposite structural separators for energy storage

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Aug 2019, accepted on 01 Nov 2019 and first published on 04 Nov 2019


Article type: Paper
DOI: 10.1039/C9NR06954B
Nanoscale, 2019, Advance Article
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Multifunctional nanocomposite structural separators for energy storage

    L. H. Acauan, Y. Zhou, E. Kalfon-Cohen, N. K. Fritz and B. L. Wardle, Nanoscale, 2019, Advance Article , DOI: 10.1039/C9NR06954B

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements