Simple, scalable, and economical preparation of sulfur-PAN composite cathodes for Li/S batteries

Aishuak Konarov, Denise Gosselink, The Nam Long Doan, Yongguang Zhang, Yan Zhao, P. Chen

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

The preparation of a sulfur/dehydrogenated polyacrylonitrile (S/DPAN) composite by manual mixing followed by heat treatment at 300 C in argon atmosphere is described. Electron microscopy analysis reveals very different morphology before and after heat treatment of the composites. Manually mixed S/DPAN cathode composites containing 48 wt% of sulfur exhibit a stable discharge capacity of 1050 mAh g-1 after 80 galvanostatic discharge-charge cycles at 0.2C, and good C-rate performance with up to 770 mAh g-1 at 1C. Results indicate that the long chains of polyacrylonitrile are retained during synthesis and may contribute to the enhanced electronic conductivity of the composite.

Original languageEnglish
Pages (from-to)183-187
Number of pages5
JournalJournal of Power Sources
Volume259
DOIs
Publication statusPublished - Aug 1 2014

Keywords

  • Cathode
  • Lithium sulfur battery
  • Nanocomposite
  • Polyacrylonitrile

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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