title: Composition and growth behavior of the surface and electrolyte decomposition layer of/on a commercial lithium ion battery LixNi1/3Mn1/3Co1/3O2 cathode determined by sputter depth profile X-ray photoelectron spectroscopy.
abstract: A detailed X-ray photoelectron spectroscopy (XPS) study of the surface and electrolyte decomposition layer of a LixNi1/3Mn1/3Co1/3O2 (NMC) cathode from commercial NMC/graphite cells by intense sputter depth profiling (SDP) using a polyatomic ion gun is provided. Cathodes of a cell after electrochemical formation and a cell at a state of initial capacity (SOIC) of 80%, which was reached after 2500 full cycles at 30 °C, are investigated.
authors.affiliation: Westfaelische Wilhelms-Universitaet Muenster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstr. 46, 48149 Muenster, Germany.
authors.forename: Philip
authors.initials: P
authors.lastname: Niehoff
authors.forename: Martin
authors.initials: M
authors.lastname: Winter