Kilogram scale inverse vulcanization of elemental sulfur to prepare high capacity polymer electrodes for Li-S batteries

Jared J. Griebel, Guoxing Li, Richard S. Glass, Kookheon Char, Jeffrey Pyun

Research output: Contribution to journalArticle

75 Scopus citations

Abstract

The synthesis of high content sulfur copolymers via the inverse vulcanization of elemental sulfur and 1,3-diisopropenylbenzene (DIB) on a one-kilogram scale is reported in a single step process. Investigation into the effects of temperature, reaction scale, and comonomer feed ratios on the inverse vulcanization process of S8 and DIB were explored to suppress the Trommsdorf effect and enable large scale synthesis of these copolymers. The copolymers were then successfully used as the active cathode materials in Li-S batteries, exhibiting enhanced capacity retention and battery lifetimes (608 mAh/g at 640 cycles) at a C/10 rate.

Original languageEnglish (US)
Pages (from-to)173-177
Number of pages5
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume53
Issue number2
DOIs
StatePublished - Jan 15 2015

    Fingerprint

Keywords

  • Li-S batteries
  • Trommsdorf effect
  • copolymerization
  • inverse vulcanization
  • sulfur

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this