Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS
In this article, we present Near Ambient Pressure (NAP)-X-ray Photoelectron Spectroscopy (XPS) results from model and commercial liquid electrolytes for lithium-ion battery production using an automated laboratory NAP-XPS system. The electrolyte solutions were (<i>i</i>) LiPF<sub>6...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/11/1056 |
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| author | Paul M. Dietrich Lydia Gehrlein Julia Maibach Andreas Thissen |
| author_facet | Paul M. Dietrich Lydia Gehrlein Julia Maibach Andreas Thissen |
| author_sort | Paul M. Dietrich |
| collection | DOAJ |
| description | In this article, we present Near Ambient Pressure (NAP)-X-ray Photoelectron Spectroscopy (XPS) results from model and commercial liquid electrolytes for lithium-ion battery production using an automated laboratory NAP-XPS system. The electrolyte solutions were (<i>i</i>) LiPF<sub>6</sub> in EC/DMC (LP30) as a typical commercial battery electrolyte and (<i>ii</i>) LiTFSI in PC as a model electrolyte. We analyzed the LP30 electrolyte solution, first in its vapor and liquid phase to compare individual core-level spectra. In a second step, we immersed a V<sub>2</sub>O<sub>5</sub> crystal as a model cathode material in this LiPF<sub>6</sub> solution. Additionally, the LiTFSI electrolyte model system was studied to compare and verify our findings with previous NAP-XPS data. Photoelectron spectra recorded at pressures of 2–10 mbar show significant chemical differences for the different lithium-based electrolytes. We show the enormous potential of laboratory NAP-XPS instruments for investigations of solid-liquid interfaces in electrochemical energy storage systems at elevated pressures and illustrate the simplicity and ease of the used experimental setup (EnviroESCA). |
| first_indexed | 2024-03-10T14:41:45Z |
| format | Article |
| id | doaj.art-336bf0b9905f4e26ba0668c6ebe48029 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T14:41:45Z |
| publishDate | 2020-11-01 |
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| series | Crystals |
| spelling | doaj.art-336bf0b9905f4e26ba0668c6ebe480292023-11-20T21:42:30ZengMDPI AGCrystals2073-43522020-11-011011105610.3390/cryst10111056Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPSPaul M. Dietrich0Lydia Gehrlein1Julia Maibach2Andreas Thissen3SPECS Surface Nano Analysis GmbH, Voltastrasse 5, 13355 Berlin, GermanyInstitute for Applied Materials (IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanyInstitute for Applied Materials (IAM-ESS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, GermanySPECS Surface Nano Analysis GmbH, Voltastrasse 5, 13355 Berlin, GermanyIn this article, we present Near Ambient Pressure (NAP)-X-ray Photoelectron Spectroscopy (XPS) results from model and commercial liquid electrolytes for lithium-ion battery production using an automated laboratory NAP-XPS system. The electrolyte solutions were (<i>i</i>) LiPF<sub>6</sub> in EC/DMC (LP30) as a typical commercial battery electrolyte and (<i>ii</i>) LiTFSI in PC as a model electrolyte. We analyzed the LP30 electrolyte solution, first in its vapor and liquid phase to compare individual core-level spectra. In a second step, we immersed a V<sub>2</sub>O<sub>5</sub> crystal as a model cathode material in this LiPF<sub>6</sub> solution. Additionally, the LiTFSI electrolyte model system was studied to compare and verify our findings with previous NAP-XPS data. Photoelectron spectra recorded at pressures of 2–10 mbar show significant chemical differences for the different lithium-based electrolytes. We show the enormous potential of laboratory NAP-XPS instruments for investigations of solid-liquid interfaces in electrochemical energy storage systems at elevated pressures and illustrate the simplicity and ease of the used experimental setup (EnviroESCA).https://www.mdpi.com/2073-4352/10/11/1056NAP-XPSLi-ion battery (LIB)electrochemistrysingle crystalvanadium pentoxidesolid–liquid interfaces |
| spellingShingle | Paul M. Dietrich Lydia Gehrlein Julia Maibach Andreas Thissen Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS Crystals NAP-XPS Li-ion battery (LIB) electrochemistry single crystal vanadium pentoxide solid–liquid interfaces |
| title | Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS |
| title_full | Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS |
| title_fullStr | Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS |
| title_full_unstemmed | Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS |
| title_short | Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS |
| title_sort | probing lithium ion battery electrolytes with laboratory near ambient pressure xps |
| topic | NAP-XPS Li-ion battery (LIB) electrochemistry single crystal vanadium pentoxide solid–liquid interfaces |
| url | https://www.mdpi.com/2073-4352/10/11/1056 |
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