Low-Temperature and High-Rate Rechargeable Aluminum Batteries Enabled by Ternary Eutectic Electrolytes.

Autor: Vadthya R; University of New Mexico, Department of Chemical and Biological Engineering, 1 University of New Mexico, United States, 87131, Albuquerque, UNITED STATES., Fetrow C; University of New Mexico, Department of Chemical and Biological Engineering, 1 University of New Mexico, United States, 87131, Albuquerque, UNITED STATES., Oladiyon O; University of New Mexico, Department of Chemical and Biological Engineering, 1 University of New Mexico, United States, 87131, Albuquerque, UNITED STATES., Wu J; NASA Glenn Research Center, Power Division, 21000 Brookpark Rd, United States, 44135, Cleveland, UNITED STATES., Sergei I; Los Alamos National Laboratory, Materials Physics and Applications Division, P.O. Box 1663, 87506, Los Alamos, UNITED STATES., Wang Y; University of New Mexico, Department of Chemistry and Chemical Biology, 1 University of New Mexico, United States, 87131, Albuquerque, UNITED STATES., Chen D; University of New Mexico, Department of Chemistry and Chemical Biology, 1 University of New Mexico, Albuquerque, NM 87131, United States, 87131, Albuquerque, UNITED STATES., Zhou XD; University of Connecticut, Department of Chemical and Biomolecular Engineering, 191 Auditorium Rd Room 204, 06269, Storrs, UNITED STATES., Wei S; University of New Mexico, Chemical and Biological Engineering, 1 University of New Mexico, 01 1120, 87102, Albuquerque, UNITED STATES OF AMERICA.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2024 Jul 29, pp. e202400983. Date of Electronic Publication: 2024 Jul 29.
DOI: 10.1002/cssc.202400983
Abstrakt: Rechargeable aluminum batteries (RABs) have garnered extensive scientific attention as a promising alternative chemistry due to the inherent advantages associated with aluminum (Al) metal anodes, including their high theoretical capacities, cost-effectiveness, environmental friendliness, and inherent non-flammable properties. Nonetheless, the practical energy density of RABs is constrained by the electrolytes that support lower operational voltage windows. Herein, we report a ternary eutectic electrolyte composed of 1-ethyl-3-methylimidazolium chloride ([C2C1im]Cl):1-butyl-3-methylimidazolium chloride ([C4C1im]Cl):aluminum chloride (AlCl3) for the application of RABs. The electrolyte exhibits a high operational potential window (~3V vs. Al/Al3+ on SS 316) and high ionic conductivity (~8.3 mS.cm-1) while exhibiting only a low temperature glass transition at -65 oC suitable for all-climate conditions. Al||graphene nanoplatelets cell delivers a high capacity of ~117 mAh/g, and ~43 mAh/g at a very high current densities of 1A/g and 5A/g, respectively. The cells render a reversible capacity of 20 mAh/g at -20 oC and 17 mAh/g at -40 oC, indicating their suitability for operation under extreme environmental conditions. We comprehensively evaluated the design and optimization of carbon paper-based battery systems. The ternary eutectic electrolyte demonstrates exceptional electrochemical performance, thus signifying its substantial potential for utilization in high-performance energy storage systems in all climates.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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