Lithium-based transition-metal oxides for battery electrodes analyzed by x-ray photoelectron spectroscopy. VIII. Li_1.2Ni_0.15Co_0.1Mn_0.55O ₂

Journal Article · Tue May 21 00:00:00 EDT 2019 · Surface Science Spectra

DOI:https://doi.org/10.1116/1.5080240· OSTI ID:1566132

Haasch, Richard T.  ^[1]; Abraham, Daniel P. ^[2]

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1. Univ. of Illinois, Urbana, IL (United States). Frederick Seitz Materials Research Lab. (FS-MRL)
2. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division

X-ray photoelectron spectroscopy (XPS) and x-ray-induced Auger electron spectroscopy were used to analyze untreated Li_1.2Ni_0.15Co_0.1Mn_0.55O ₂ powder obtained from TODA America. X-ray photoelectron and x-ray-induced Auger electron spectra were obtained using incident monochromatic Al Kα radiation at 0.83 01 nm. A survey spectrum together with Ni 2p, Co 2p, Mn 2p, Ni LMM, O 1s, C 1s, Ni 3s, Co 3s, Mn 3s, Ni 3p, Co 3p, Li 1s, and Mn 3p are presented. The spectra indicate the principal core level photoelectron and Auger electron signals. Making use of the O 1s, Ni 3p, Co 3p, Mn 3p, and Li 1s lines and neglecting the components related to surface contaminants, XPS quantitative analysis reveals an altered stoichiometry of the air-exposed powder surface of Li_1.2Ni_0.4Co_0.2Mn_0.9O_2.8.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1566132
• Journal Information: Surface Science Spectra, Vol. 26, Issue 1; ISSN 1055-5269
• Publisher: American Vacuum Society - AIP
• Country of Publication: United States
• Language: English

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reference XPS spectra