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Investigations of the Solid Electrolyte Interphase Using X‐Ray Photoelectron Spectroscopy In situ Experiment on the Lithium‐Based Solid Electrolyte LiPSON
Author(s) -
Michel Fabian,
Becker Martin,
Janek Juergen,
Polity Angelika
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900336
Subject(s) - electrolyte , x ray photoelectron spectroscopy , lithium (medication) , sputtering , materials science , interphase , fast ion conductor , anode , inorganic chemistry , analytical chemistry (journal) , chemistry , chemical engineering , thin film , electrode , nanotechnology , chromatography , medicine , biology , engineering , genetics , endocrinology
Lithium phosphorus sulfuric oxide nitride (LiPSON) is prepared by radio frequency (RF) sputtering using a sputter target with compositions of 50 wt% Li 3 PO 4 and 50 wt% Li 2 SO 4 . Knowledge about the present phases at the solid electrolyte–lithium anode interface, the so‐called solid electrolyte interphase (SEI), is achieved by performing an in situ sputtering of metallic lithium on the electrolyte and subsequently measuring the chemical bonding by X‐ray photoelectron spectroscopy (XPS). Information about the SEI is of essential interest to understand the process of lithium‐ion conduction in the half cell. Therefore, the information about the formation of lithium phases in the SEI is crucial.