Aluminum Bis(trifluoromethanesulfonyl)imide as a Chloride-Free Electrolyte for Rechargeable Aluminum Batteries. Issue 9 (1st January 2017)

• Record Type: Journal Article
• Authors: Chiku, Masanobu; Matsumura, Shota; Takeda, Hiroki; Higuchi, Eiji; Inoue, Hiroshi
• Is Part Of: Journal of the Electrochemical Society. Volume 164:Issue 9(2017)
• Page Start: A1841
• Page End: A1844
• Publication Date: 2017-01-01
• Subjects: Aluminum bis(trifluoromethanesulfonyl)imide -- Rechargeable aluminum battery; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0701709jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Aluminum bis(trifluoromethanesulfonyl)imide (Al(TFSI)3 ) was synthesized by a simple substitution reaction and investigated as the Al 3+ source for the electrolyte of a rechargeable Al battery. The electrochemical window was extended to 3.6 V with the electrolyte containing Al(TFSI)3 in AN, whereas it was ∼2.5 V with the conventional electrolyte for the Al rechargeable battery. A reversible electrochemical Al deposition/dissolution reaction was observed on a Mo plate electrode with small overpotential less than 0.5 V. NMR and Raman spectra identified the main Al species in the electrolyte as Al(TFSI − ) x (AN)6- x 3- x ( x = 1 ∼ 6).