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Material/element-dependent fluorescence-yield modes on soft X-ray absorption spectroscopy of cathode materials for Li-ion batteries

  • Author(s): Asakura, D
  • Hosono, E
  • Nanba, Y
  • Zhou, H
  • Okabayashi, J
  • Ban, C
  • Glans, PA
  • Guo, J
  • Mizokawa, T
  • Chen, G
  • Achkar, AJ
  • Hawthron, DG
  • Regier, TZ
  • Wadati, H
  • et al.

Published Web Location

https://doi.org/10.1063/1.4943673
Abstract

© 2016 Author(s). We evaluate the utilities of fluorescence-yield (FY) modes in soft X-ray absorption spectroscopy (XAS) of several cathode materials for Li-ion batteries. In the case of total-FY (TFY) XAS for LiNi0.5Mn1.5O4, the line shape of the Mn L3-edge XAS was largely distorted by the self-absorption and saturation effects, while the distortions were less pronounced at the Ni L3edge. The distortions were suppressed for the inverse-partial-FY (IPFY) spectra. We found that, in the cathode materials, the IPFY XAS is highly effective for the Cr, Mn, and Fe L edges and the TFY and PFY modes are useful enough for the Ni L edge which is far from the O K edge.

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