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

Daisuke Asakura*, Eiji Hosono, Yusuke Nanba, Haoshen Zhou, Jun Okabayashi, Chunmei Ban, Per Anders Glans, Jinghua Guo, Takashi Mizokawa, Gang Chen, Andrew J. Achkar, David G. Hawthron, Thomas Z. Regier, Hiroki Wadati

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

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 L3 edge. 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.

Original languageEnglish
Article number035105
JournalAIP Advances
Volume6
Issue number3
DOIs
Publication statusPublished - 2016 Mar

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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