Development of thin metal anodes by vacuum deposition technology from raw and recycled lithium for solid-state battery and anolyte interlayer
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Journal Title
Journal ISSN
Volume Title
Kemian tekniikan korkeakoulu |
Master's thesis
Authors
Date
2022-10-18
Department
Major/Subject
Functional Materials for Global Challenges
Mcode
CHEM3061
Degree programme
Master's Programme in Advanced Materials for Innovation and Sustainability
Language
en
Pages
56 + 8
Series
Abstract
In a context of ecological concerns, the evolution of batteries is at the centre of the energy transition. From 2035 onwards, the sale of thermal cars will no longer be permitted in the European Union. Lithium metal, considered the holy grail of anode materials due to its extremely high specific capacity and low negative redox potential, is currently one of the best solutions for improving battery performance. Apart from safety issues that limit its use, supply complications are expected in the future. The proper management of lithium resources in the European Union is a priority; the need for lithium must be reduced and its recyclability increased. In order to address this problem, this master thesis investigates a thin film vapour deposition process that reduces the amount of lithium used in batteries and allows the use of lithium from the recycling industry. The paper describes the implementation of a vacuum evaporation process as well as the methods used to characterize the thin films of lithium. As the purity of lithium is an important factor for the durability and safety of the battery, it is shown that the evaporation process allows purification and therefore the use of recycled lithium with impurities.Description
Supervisor
Murtomäki, LasseThesis advisor
Lafort, AdelineFourdrinier, Lionel
Keywords
lithium metal anode, physical vapor deposition, all-solid-state battery, energetic transition, lithium recycling