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Comparison of Chloroaluminate Melts for Aluminum Graphite Dual‐Ion Battery Application

Elia, Giuseppe Antonio; Hoeppner, Katrin; Hahn, Robert

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 : AlCl$_{3}$) electrolyte and two popular deep eutectic solvents (DESs), namely urea : AlCl$_{3}$ and acetamide:AlCl$_{3}$. The three electrolytes′ characteristics have been evaluated in terms of Al‐stripping deposition capability and cycling behavior in AGDICs. The results evidence the EMIMCl : AlCl$_{3}$′s Al‐stripping deposition and rate capability in AGDICs superior characteristics addressed to the lower viscosity and higher conductivity with respect to the urea : AlCl$_{3}$ and acetamide:AlCl$_{3}$. On the other hand, the urea : AlCl$_{3}$ guarantees a much higher columbic efficiency in AGDICs, thanks to the superior electrochemical window stability.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129749
Veröffentlicht am 16.02.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Helmholtz-Institut Ulm (HIU)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 02.2021
Sprache Englisch
Identifikator ISSN: 2566-6223, 2566-6223
KITopen-ID: 1000129749
Erschienen in Batteries & supercaps
Verlag Wiley
Band 4
Heft 2
Seiten 368–373
Vorab online veröffentlicht am 23.11.2020
Nachgewiesen in Web of Science
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