Communication—cross-linked anionic polymer coating prepared by UV and thermal curing for long-life lithium-sulfur battery

Natsuki Nakamura, Hitoshi Mikuriya, Eri Kojima, Seongki Ahn, Kazuhiro Yamabuki, Toshiyuki Momma*, Tetsuya Osaka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

An anionic polymer coating produced by ultraviolet curing and thermosetting to suppress polysulfide dissolution of the sulfur cathode for lithium-sulfur batteries was investigated. An sulfur/Ketjenblack cathode with a high sulfur loading of 10 mg cm-2 was prepared using a three-dimensional foam current collector. From the current rate and cycle characteristics, the cross-linked polymer coating suppressed the polysulfide dissolution, and the discharge capacities were 1031 and 414 mAh g-1-sulfur at 0.1 and 1.0C, respectively. In a long-term cycle test of 300 cycles, a capacity retention rate was 41%. An average coulombic efficiency was 91% throughout the cycles.

Original languageEnglish
Article number110552
JournalJournal of the Electrochemical Society
Volume168
Issue number11
DOIs
Publication statusPublished - 2021 Nov

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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