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

101 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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