Jump to main content
Jump to site search


Facile one-pot synthesis of well-defined coaxial sulfur/polypyrrole tubular nanocomposites as cathodes for long-cycling lithium sulfur battery

Abstract

Well-defined core-shell structured coaxial sulfur/polypyrrole tubular nanocomposites, polypyrrole nanotubes wrapped by uniform rough sulfur layers, were fabricated as Li-S battery cathodes via a facile one-pot method. In the designed structure, the polypyrrole backbone can facilitate the charge transport and also restrain the soluble polysufides diffusion, while the active sulfur layer can efficiently react with Li+ assisted by the PPy nanotubes and the lithium polysufides can be massively trapped by the PPy nanotubes during charge-discharge process. The as-prepared coaxial sulfur/polypyrrole tubular nanocomposites with a sulfur loading of 53.3% exhibited a high initial discharge specific capacity of 1117 mAh/g with a remarkable cycling stability, retaining 692 mAh/g and 525 mAh/g after 200 cycles at the current density of 0.2 C and 1 C, respectively. Moreover, it expressed an excellent rate capability performance, maintaining 470 mAh/g at a high current density of 2 C.

Back to tab navigation

Publication details

The article was received on 22 Feb 2018, accepted on 07 Jun 2018 and first published on 08 Jun 2018


Article type: Paper
DOI: 10.1039/C8NR01530A
Citation: Nanoscale, 2018, Accepted Manuscript
  •   Request permissions

    Facile one-pot synthesis of well-defined coaxial sulfur/polypyrrole tubular nanocomposites as cathodes for long-cycling lithium sulfur battery

    W. Wei, P. Du, D. Liu, Q. Wang and P. Liu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR01530A

Search articles by author

Spotlight

Advertisements