July 2017The picture shows X-ray photo electron spectroscopy (XPS) detail spectra of the elements oxygen, carbon and lithium observed on a Lithium surface which was in contact to the battery electrolyte 1.3-dioxolane. Organic solvents decompose on metallic lithium leading to a passivation of the surface. Using XPS we could identify these decomposition products by detecting elements and distinguish their oxidation states. The challenge is to identify the resulting signal pattern of each component represented in the picture by the line structure above the spectra. (Picture submitted by Carsten Fiedler.)https://www.uni-giessen.de/en/faculties/f08/departments/physchem/janek/gallerypotm/pom2017/BdM0717.jpg/viewhttps://www.uni-giessen.de/@@site-logo/logo.png
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July 2017
The picture shows X-ray photo electron spectroscopy (XPS) detail spectra of the elements oxygen, carbon and lithium observed on a Lithium surface which was in contact to the battery electrolyte 1.3-dioxolane. Organic solvents decompose on metallic lithium leading to a passivation of the surface. Using XPS we could identify these decomposition products by detecting elements and distinguish their oxidation states. The challenge is to identify the resulting signal pattern of each component represented in the picture by the line structure above the spectra. (Picture submitted by Carsten Fiedler.)
