title: Protection of lithium metal surfaces using chlorosilanes.
abstract: In this paper, we present a new approach for protecting metallic lithium surfaces based on a reaction between the thin native layer of lithium hydroxide present on the surface and various chlorosilane derivatives. The chemical composition of the resulting layer and the chemistry involved in layer formation were analyzed by polarization modulated infrared reflection absorption spectroscopy (PM-IRRAS), X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray analysis (EDX). Spectroscopy shows the disappearance of surface hydroxide groups and the appearance of silicon and chloride on the lithium surface. Differential scanning calorimetry (DSC) and electrochemical impedance spectroscopy (EIS) show that this surface treatment protects the lithium from certain gas-phase reactions and is ionically conductive.
authors.affiliation: Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, USA.
authors.forename: Filippo
authors.initials: F
authors.lastname: Marchioni
authors.forename: Kurt
authors.initials: K
authors.lastname: Star
authors.forename: Erik
authors.initials: E
authors.lastname: Menke
authors.forename: Thierry
authors.initials: T
authors.lastname: Buffeteau
authors.forename: Laurent
authors.initials: L
authors.lastname: Servant
authors.forename: Bruce
authors.initials: B
authors.lastname: Dunn
authors.forename: Fred
authors.initials: F
authors.lastname: Wudl