Improvement of Ultra Soft X-ray Absorption Spectroscopy and Photoelectron Spectroscopy Beamline for Studies on Related Materials and Cathodes of Lithium Ion Batteries

AbstractNickel aluminum layered double hydroxide (NiAl LDH) with nitrate in its interlayer is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the performance of the material is investigated in 1 M LiPF6 in EC/DMC vs. Li. The NiAl LDH electrode based on sodium alginate (SA) binder shows a high initial discharge specific capacity of 2586 mAh g−1 at 0.05 A g−1 and good stability in the potential range of 0.01–3.0 V vs. Li+/Li, which is better than what obtained with a polyvinylidene difluoride (PVDF)-based electrode. The NiAl LDH electrode with SA binder shows, after 400 cycles at 0.5 A g−1, a cycling retention of 42.2% with a capacity of 697 mAh g−1 and at a high current density of 1.0 A g−1 shows a retention of 27.6% with a capacity of 388 mAh g−1 over 1400 cycles. In the same conditions, the PVDF-based electrode retains only 15.6% with a capacity of 182 mAh g−1 and 8.5% with a capacity of 121 mAh g−1, respectively. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. Graphical abstract The as-prepared NiAl-NO3−-LDH with the rhombohedral R-3 m space group is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the material’s performance is investigated in 1 M LiPF6 in EC/DMC vs. Li. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. This work highlights the possibility of the direct application of NiAl LDH materials as negative electrodes for LIBs.

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Unveiling the Complex Redox Reactions of SnO2 in Li-Ion Batteries Using Operando X-ray Photoelectron Spectroscopy and In Situ X-ray Absorption Spectroscopy

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c17936 ◽

2021 ◽

Vol 13 (2) ◽

pp. 2547-2557

Author(s):

Marta Mirolo ◽

Xiaohan Wu ◽

Carlos A. F. Vaz ◽

Petr Novák ◽

Mario El Kazzi

Keyword(s):

Absorption Spectroscopy ◽

Photoelectron Spectroscopy ◽

Redox Reactions ◽

Li Ion Batteries ◽

X Ray ◽

Li Ion ◽

X Ray Absorption

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IODINE LOCAL ENVIRONMENT IN HIGH PRESSURE BOROSILICATE GLASSES: AN X-RAY PHOTOELECTRON SPECTROSCOPY AND X-RAY ABSORPTION SPECTROSCOPY INVESTIGATION

Journal of Nuclear Materials ◽

10.1016/j.jnucmat.2021.153050 ◽

2021 ◽

pp. 153050

Author(s):

Yann MORIZET ◽

Valentin JOLIVET ◽

Nicolas TRCERA ◽

Tomo SUZUKI-MURESAN ◽

Jonathan HAMON

Keyword(s):

High Pressure ◽

Absorption Spectroscopy ◽

Photoelectron Spectroscopy ◽

Local Environment ◽

Borosilicate Glasses ◽

X Ray ◽

X Ray Absorption

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Ni-(In,Ga)As Alloy Formation Investigated by Hard-X-Ray Photoelectron Spectroscopy and X-Ray Absorption Spectroscopy

Physical Review Applied ◽

10.1103/physrevapplied.2.064010 ◽

2014 ◽

Vol 2 (6) ◽

Cited By ~ 9

Author(s):

Lee A. Walsh ◽

Greg Hughes ◽

Conan Weiland ◽

Joseph C. Woicik ◽

Rinus T. P. Lee ◽

...

Keyword(s):

Absorption Spectroscopy ◽

Photoelectron Spectroscopy ◽

Alloy Formation ◽

X Ray ◽

X Ray Absorption

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