Jump to main content
Jump to site search

Issue 26, 2018
Previous Article Next Article

Disordered carbon tubes based on cotton cloth for modulating interface impedance in β′′-Al2O3-based solid-state sodium metal batteries

Author affiliations

Abstract

Owing to the high interfacial resistance between a solid electrolyte and sodium metal anode, the development of solid-state sodium batteries is greatly limited. In this work, the introduction of the coating layer composed of micro-sized and cotton-cloth-derived disordered carbon tubes (DCTs) on the surface of the β′′-Al2O3 solid electrolyte (BASE) reduces the interfacial resistance. Better wetting of the DCT modified BASE by sodium results in uniform and rapid Na ion transport across the interface, which significantly reduces the interfacial resistance from 750 Ω cm−2 to 150 Ω cm−2 and presents stable Na stripping/plating profiles at a temperature of 58 °C. Solid-state sodium batteries with a sodium anode, DCT-BASE, and Na3V2(PO4)3 (NVP) gel composite cathode are successfully operated at 58 °C, and deliver good cycling performance and high efficiency. In addition, the self-supported DCT electrode material is proved to have reversible, stable, and rapid Na ion insertion/extraction ability in NIBs.

Graphical abstract: Disordered carbon tubes based on cotton cloth for modulating interface impedance in β′′-Al2O3-based solid-state sodium metal batteries

Back to tab navigation

Supplementary files

Publication details

The article was received on 27 Feb 2018, accepted on 18 May 2018 and first published on 21 May 2018


Article type: Paper
DOI: 10.1039/C8TA01883A
Citation: J. Mater. Chem. A, 2018,6, 12623-12629
  •   Request permissions

    Disordered carbon tubes based on cotton cloth for modulating interface impedance in β′′-Al2O3-based solid-state sodium metal batteries

    T. Wu, Z. Wen, C. Sun, X. Wu, S. Zhang and J. Yang, J. Mater. Chem. A, 2018, 6, 12623
    DOI: 10.1039/C8TA01883A

Search articles by author

Spotlight

Advertisements