2021年1月1日 · X-ray photoelectron spectroscopy (XPS) is a widely used technique to study surface chemistry and ageing mechanisms of LiNi x Mn y Co z O 2 (NMC) based cathodes of lithium ion batteries.

2018年5月31日 · Quantitative analysis of Ni 2+ /Ni 3+ using X-ray photoelectron spectroscopy (XPS) is important for evaluating the crystal structure and electrochemical performance of Lithium-nickel–cobalt-manganese oxide (Li [Ni x Mn y Co z]O 2, NMC).

While the O 1s spectra of NMC cathodes from NMC-LTO and NMC-graphite cells show only minor dissimilarities, the O 1s spectrum of NMC from NMC-Li-metal cell displays much larger peak at...

2024年4月23日 · In this work we explore the possibility of using NMC materials of different metallic ratios (NMC 622 and 811) as oxygen evolution and hydrogen evolution catalysts under alkaline conditions. We show that both materials are excellent oxygen evolution reaction (OER) electrocatalysts but perform poorly for the hydrogen evolution reaction.

2024年8月6日 · Coating LiNi x Mn y Co 1−x−y O 2 (NMC) with refractory materials has been widely used to improve the stability of the cathode-electrolyte interface, but mixed results have been reported for Al...

Download scientific diagram | XPS spectra of NMC electrodes extracted from NMC/LTO cells after the first charge−discharge cycle between 1.45 and 3.05 V at C/20 with a 60 h potentiostatic hold...

摘要 使用 X 射线光电子能谱 (XPS) 对 Ni2+/Ni3+ 进行定量分析对于评估锂镍钴锰氧化物 (Li [NixMnyCoz]O2, NMC) 的晶体结构和电化学性能非常重要。 然而，基于高斯/洛伦兹 (G/L) 峰拟合的定量分析面临重现性和有效性的挑战。

2022年5月12日 · Therefore, measuring the surface composition is an important step to fully understanding the mechanism of how Al 2 O 3 ALD coating recovers the electrochemical performance of DNMC811. XPS was applied to characterize the surface composition change of DNMC811 and Al 2 O 3 coated DNMC811 particles.

2021年1月1日 · X-ray photoelectron spectroscopy (XPS) is a widely used technique to study surface chemistry and ageing mechanisms of LiNi x Mn y Co z O 2 (NMC) based cathodes of lithium ion batteries.

2022年3月8日 · High-resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) were used to analyze the surface degradation of the NMC cathode, and these measurements were coupled with three-electrode electrochemical impedance spectroscopy (EIS) to probe the ion transport behavior across the NMC interface.