Jump to main content
Jump to site search


Extending Cycling Life of Lithium-Oxygen Batteries Based on Novel Catalytic Nanofiber Membrane and Controllable Screen-Printed Method

Abstract

Surface and interface configuration of catalysts have been considered as a useful strategy to achieve high oxygen reduction and oxygen evolution reactions activities for Li-O2 batteries. Herein, facile synchronous reduction method and screen-printing process are applied to obtain Ru-rGO catalyst with 3D porous architecture and oxygen electrodes, respectively. Significantly, an ultra-long cycling Li-O2 cell is designed by catalytic membrane decorating. The catalytic membrane is fabricated via electrospinning polyacrylonitrile (PAN) nanofibers onto a separator directly. Then, Ag nanowires and Au nanoparticles are following coated on previous PAN scaffolds. While comparing initial Ru-rGO electrode with the decorated Ru-rGO (D-Ru-rGO), the cell with D-Ru-rGO catalyst exhibits enhanced cycling performance towards ORR and OER properties, higher specific discharge capacity (13437.8 mAh g-1), extended cycling stability, and desirable rate performance as well as lower voltage gap. The insulating PAN polymer framework could directly restrict electron transfer to the Ag/Au catalyst and effectively prevent Ag/Au catalytic sites from the direct blockage. Thus, an efficient and effective method in this work offers a new insight into architecture designing and synergetic surface/interface strategy settling.

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Aug 2018, accepted on 11 Oct 2018 and first published on 12 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA07884J
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
  •   Request permissions

    Extending Cycling Life of Lithium-Oxygen Batteries Based on Novel Catalytic Nanofiber Membrane and Controllable Screen-Printed Method

    C. Li, X. Zhang, W. Fan, H. Li, S. Zhao, J. Wang and B. Wang, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA07884J

Search articles by author

Spotlight

Advertisements