锂离子电池正极材料软 X 射线吸收光谱的材料/元素依赖性荧光产率模式,AIP Advances

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锂离子电池正极材料软 X 射线吸收光谱的材料/元素依赖性荧光产率模式
AIP Advances ( IF 1.4 ) Pub Date : 2016-03-01 , DOI: 10.1063/1.4943673
Daisuke Asakura ₁ , Eiji Hosono ₁ , Yusuke Nanba ₁ , Haoshen Zhou ₁ , Jun Okabayashi ₂ , Chunmei Ban ₃ , Per-Anders Glans ₄ , Jinghua Guo _{4,

5} , Takashi Mizokawa ₆ , Gang Chen ₇ , Andrew J. Achkar ₈ , David G. Hawthron ₈ , Thomas Z. Regier ₉ , Hiroki Wadati ₁₀

Affiliation

National Institute of Advanced Industrial Science and Technology 1 Energy Technology Research Institute, , Tsukuba, Ibaraki 305-8568, Japan
The University of Tokyo 2 Research Center for Spectrochemistry, , Bunkyo-ku, Tokyo, 113-0033, Japan
National Renewable Energy Laboratory 3 The Chemical and Materials Science Center, , Golden, Colorado, 80401, USA
Lawrence Berkeley National Laboratory 4 Advanced Light Source, , Berkeley, California, 94720, USA
University of California 5 Department of Chemistry and Biochemistry, , Santa Cruz, California, 95064, USA.
The University of Tokyo 6 Department of Complexity Science and Engineering, , Kashiwa, Chiba, 277-8561, Japan
Jilin University 7 College of Physics/State Key Laboratory of Superhard Materials, , Changchun, 130012, People’s Republic of China
University of Waterloo 8 Department of Physics and Astronomy, , Waterloo, Ontario, N2L 3G1, Canada
University of Saskatchewan 9 Canadian Light Source, , Saskatoon, Saskatchewan, S7N 0X4, Canada
The University of Tokyo 10 Institute for Solid State Physics, , Kashiwa, Chiba, 277-8581, Japan

我们评估了几种锂离子电池正极材料的软 X 射线吸收光谱 (XAS) 中荧光产量 (FY) 模式的效用。在 LiNi0.5Mn1.5O4 的总 FY (TFY) XAS 的情况下，Mn L3 边缘 XAS 的线形在很大程度上受到自吸收和饱和效应的影响，而在 Ni L3 处的变形不太明显边缘。反偏 FY (IPFY) 光谱的失真被抑制。我们发现，在正极材料中，IPFY XAS 对 Cr、Mn 和 Fe L 边缘非常有效，而 TFY 和 PFY 模式对于远离 OK 边缘的 Ni L 边缘足够有用。

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更新日期：2016-03-01

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