Accessing the Primary Solid–Electrolyte Interphase on Lithium Metal: A Method for Low‐Concentration Compound Analysis
Accessing the Primary Solid–Electrolyte Interphase on Lithium Metal: A Method for Low‐Concentration Compound Analysis
Despite large research efforts in the fields of lithium ion and lithium metal batteries, there are still unanswered questions. One of them is the formation of the solid−electrolyte interphase (SEI) in lithium-metal-anode-based battery systems. Until now, a compound profile analysis of the SEI on lit...
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Personal Name(s): | von Holtum, Bastian |
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Kubot, Maximilian / Peschel, Christoph / Rodehorst, Uta / Winter, Martin / Nowak, Sascha / Wiemers-Meyer, Simon (Corresponding author) | |
Contributing Institute: |
Helmholtz-Institut Münster Ionenleiter für Energiespeicher; IEK-12 |
Published in: | ChemSusChem, 16 (2023) 9, S. e202201912 |
Imprint: |
Weinheim
Wiley-VCH
2023
|
DOI: |
10.1002/cssc.202201912 |
DOI: |
10.34734/FZJ-2024-02764 |
Document Type: |
Journal Article |
Research Program: |
Lillint - Thermodynamic and kinetic stability of the Lithium-Liquid Electrolyte Interface Fundamentals and Materials |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2024-02764 in citations.
Despite large research efforts in the fields of lithium ion and lithium metal batteries, there are still unanswered questions. One of them is the formation of the solid−electrolyte interphase (SEI) in lithium-metal-anode-based battery systems. Until now, a compound profile analysis of the SEI on lithium metal was challenging as the amounts of many compounds after simple contact of lithium metal and the electrolyte were too low for detection with analytical methods. This study presents a novel approach on unravelling the SEI compound profile through accumulation in the gas, liquid electrolyte, and solid phase. The method uses the intrinsic behavior of lithium metal to spontaneously react with the liquid electrolyte. In combination with complementary, state-of-the-art analytical instrumentation and methods, this approach provides qualitative and quantitative results on all three phases revealing the vast variety of compounds formed in carbonate-based electrolytes. |