Novel phosphonium-based ionic liquid electrolytes for battery applications

Abstract: In this study, we address the fundamental question of the physicochemical and electrochemical properties of phosphonium-based ionic liquids containing the counter-ions bis(trifluoromethanesulfonyl)imide ([TFSI]−) and bis(fluorosulfonyl)imide ([FSI]−). To clarify these structure–property as well as structure–activity relationships, trimethyl-based alkyl- and ether-containing phosphonium ILs were systematically synthesized, and their properties, namely density, flow characteristics, alkali metal compatibility, oxidative stability, aluminum corrosivity as well as their use in Li-ion cells were examined comprehensively. The variable moiety on the phosphonium cation exhibited a chain length of four and five, respectively. The properties were discussed as a function of the side chain, counter-ion and salt addition ([Li][TFSI] or [Li][FSI]). High stability coupled with good flow characteristics were found for the phosphonium IL [P1114][TFSI] and the mixture [P1114][TFSI] + [Li][TFSI], respectively

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch
• Anmerkungen: Molecules. - 27, 15 (2022) , 4729, ISSN: 1420-3049

Beteiligte, Orts- und Zeitangaben

• Ereignis: Veröffentlichung
• (wo): Freiburg
• (wer): Universität
• (wann): 2022
• Urheber: Hofmann, Andreas ; Rauber, Daniel ; Wang, Tzu-Ming ; Hempelmann, Rolf ; Kay, Christopher W. M. ; Hanemann, Thomas
• Beteiligte Personen und Organisationen: Albert-Ludwigs-Universität Freiburg. Professur für Werkstoffprozesstechnik

Weitere Informationen

• DOI: 10.3390/molecules27154729
• URN: urn:nbn:de:bsz:25-freidok-2287844
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 25.03.2025, 13:58 MEZ