Anion amphiprotic ionic liquids as protic electrolyte matrices allowing sodium metal plating

Piotr Jankowski*, Karolina Matuszek, Marcel Treskow, Michel Armand, Douglas MacFarlane, Patrik Johansson

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The sodium-ion battery (SIB) is proposed as a complementary technology to today's commercially dominant lithium-ion battery (LIB). While much know-how can be transferred from LIBs to SIBs, adjustments are still necessary, not the least for the electrolytes employed. Here the use of anion amphiprotic ionic liquid (AAIL) based electrolytes is proposed for SIB application. Two different AAILs, based on organic trifluoromethylsulfonylamide (TFSAm) and inorganic HSO4 anions, respectively, doped with NaTFSI salt have been studied, focusing on electrochemical stability and transport properties, complemented by studies of the ion–ion interactions, and final sodium-ion battery performance via stripping/plating vs. sodium metal electrodes.
Original languageEnglish
JournalChemical Communications
Volume55
Issue number83
Pages (from-to)12523-12526
ISSN1359-7345
DOIs
Publication statusPublished - 2019

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