LiNi0.8Co0.2O2-based high power lithium-ion battery positive electrodes analyzed by x-ray photoelectron spectroscopy: 1. Fresh electrode

Abstract

X-ray photoelectron spectroscopy(XPS) was used to analyze a fresh LiNi0.8Co0.2O2-based high power lithium-ion battery cathode. XP spectra were obtained using incident monochromatic AlKα radiation at 0.83401 nm. A survey spectrum together with F 1s, O 1s, C 1s, S 2p, P 2p, and Li 1s are presented. In addition, XP spectra were obtained using incident Mg Kα radiation at 0.98903 nm. A survey spectrum together with Ni 2p, Co 2p, and C 1s are presented. The spectra indicate the principal core level photoelectron and Auger electron signals and show only minor sulfur contamination.