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Fluorine-Free Electrolytes for Lithium and Sodium Batteries
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.ORCID iD: 0000-0002-2004-5869
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.ORCID iD: 0000-0003-2538-8104
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Structural Chemistry.ORCID iD: 0000-0002-9862-7375
2022 (English)In: Batteries & Supercaps, E-ISSN 2566-6223, Vol. 5, no 6, article id e202100373Article, review/survey (Refereed) Published
Abstract [en]

Fluorinated components in the form of salts, solvents and/or additives are a staple of electrolytes for high-performance Li- and Na-ion batteries, but this comes at a cost. Issues like potential toxicity, corrosivity and environmental concerns have sparked interest in fluorine-free alternatives. Of course, these electrolytes should be able to deliver performance that is on par with the electrolytes being in use today in commercial batteries. This begs the question: Are we there yet? This review outlines why fluorine is regarded as an essential component in battery electrolytes, along with the numerous problems it causes and possible strategies to eliminate it from Li- and Na-ion battery electrolytes. The examples provided demonstrate the possibilities of creating fully fluorine-free electrolytes with similar performance as their fluorinated counterparts, but also that there is still a lot of room for improvement, not least in terms of optimizing the fluorine-free systems independently of their fluorinated predecessors.

Place, publisher, year, edition, pages
Wiley John Wiley & Sons, 2022. Vol. 5, no 6, article id e202100373
Keywords [en]
electrolytes, fluorine-free, lithium, sodium, batteries, sustainability
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-483640DOI: 10.1002/batt.202100373ISI: 000767130900001OAI: oai:DiVA.org:uu-483640DiVA, id: diva2:1692038
Funder
EU, Horizon 2020, 875514EU, Horizon 2020, 963542StandUpAvailable from: 2022-08-31 Created: 2022-08-31 Last updated: 2024-01-15Bibliographically approved

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Hernández, GuiomarMogensen, RonnieYounesi, RezaMindemark, Jonas

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