Title: Investigations on LiF as Protective Layer for Lithium Metal Electrodes
Other Titles: Untersuchungen an LiF als Schutzschicht für Lithium-Metallelektroden
Language: English
Authors: Stadt, Michael Georg 
Qualification level: Diploma
Advisor: Fafilek, Günter 
Issue Date: 2021
Number of Pages: 87
Qualification level: Diploma
The improvement of lithium-ion batteries is necessary to get a higher specific capacity which is especially needed for the electromobility to ensure higher driving ranges. State of the art batteries offer specific energy densities of about 200 Wh/kg, which can be raised up to 350 Wh/kg with lithium metal as anode material. There are a few challenges upcoming with the usage of lithium metal due to its high reactivity. One approach to increase the chemical and electrochemical stability of lithium metal is a proper coating, for which lithium fluoride is a promising candidate due to its chemical stability and high surface energy.Different reported coating methods were used to obtain LiF coatings with different morphologies and thicknesses e.g., immersion in a NH4HF2/DMSO solution or gas phase reaction with R-134a. To investigate the influence of LiF on lithium metal, different analytical methods were carried out, focusing on the chemical stability at ambient conditions and electrochemical performance during plating/stripping cycles. The aim of this project is to re-evaluate the impact of LiF coatings on the stability of lithium metal electrodes.
Keywords: Lithiumbatterien; negatives Elektrodenmaterial; Metallelektrode
Lithium-batteries; negative electrode material; metal electrode
URI: https://doi.org/10.34726/hss.2021.75200
DOI: 10.34726/hss.2021.75200
Library ID: AC16132305
Organisation: E164 - Institut für Chemische Technologien und Analytik 
Publication Type: Thesis
Appears in Collections:Thesis

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