Direct Observation of the Redistribution of Sulfur and Polysufides in Li-S Batteries during the First Cycle by in Situ X-Ray Fluorescence Microscopy

Xiqian Yu, Huilin Pan, Yongning Zhou, Paul Northrup, Jie Xiao, Seongmin Bak, Mingzhao Liu, Kyung Wan Nam, Deyang Qu, Jun Liu, Tianpin Wu, Xiao Qing Yang

Research output: Contribution to journalArticlepeer-review

91 Scopus citations

Abstract

A novel in situ X-ray fluorescence microscopy combined with X-ray absorption spectroscopy technique is reported to investigate the Li-S batteries during electrochemical cycling. The evolution of morphology changes of the electrode is monitored in real time using the X-ray fluorescence images, while the changes of the sulfur chemical state are characterized simultaneously using the X-ray absorption spectroscopy spectra.

Original languageEnglish
Article number1500072
JournalAdvanced Energy Materials
Volume5
Issue number16
DOIs
StatePublished - 1 Aug 2015

Keywords

  • energy storage
  • in situ techniques
  • lithium-sulfur batteries
  • microspectroscopy
  • reaction mechanism

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