Comparison of Chloroaluminate Melts for Aluminum Graphite Dual‐Ion Battery Application. Issue 2 (23rd November 2020)

• Record Type: Journal Article
• Authors: Elia, Giuseppe Antonio; Hoeppner, Katrin; Hahn, Robert
• Is Part Of: Batteries & supercaps. Volume 4:Issue 2(2021)
• Page Start: 368
• Page End: 373
• Publication Date: 2020-11-23
• Subjects: Electrochemistry -- Periodicals; Electrodes -- Periodicals; Electric batteries -- Periodicals; 621.31242
• DOI: 10.1002/batt.202000244
• Languages: English
• ISSNs: 2566-6223

Abstract

Abstract: Herein, we report a comparison of aluminum graphite dual‐ion cells (AGDICs) electrochemical characteristics employing the conventional 1‐ethyl‐3‐methylimidazolium chloride:aluminum trichloride (EMIMCl : AlCl3 ) electrolyte and two popular deep eutectic solvents (DESs), namely urea : AlCl3 and acetamide:AlCl3 . The three electrolytes′ characteristics have been evaluated in terms of Al‐stripping deposition capability and cycling behavior in AGDICs. The results evidence the EMIMCl : AlCl3 ′s Al‐stripping deposition and rate capability in AGDICs superior characteristics addressed to the lower viscosity and higher conductivity with respect to the urea : AlCl3 and acetamide:AlCl3 . On the other hand, the urea : AlCl3 guarantees a much higher columbic efficiency in AGDICs, thanks to the superior electrochemical window stability. Abstract : Let the best electrolyte win ! A comparison of aluminum graphite dual‐ion cells (AGDICs) electrochemical characteristics employing the conventional 1‐ethyl‐3‐methylimidazolium chloride:aluminum trichloride (EMIMCl : AlCl3 ) electrolyte and two popular deep eutectic solvents (DESs), namely urea : AlCl3 and acetamide:AlCl3, is shown here.