期刊
CHEMICAL COMMUNICATIONS
卷 52, 期 2, 页码 414-417出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc06774j
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资金
- KU Leuven [IDO/12/006 IREBAT]
- FWO Flanders [G.0B9613.N]
The first redox flow battery (RFB), based on the all-copper liquid metal salt [Cu(MeCN)(4)][Tf2N], is presented. Liquid metal salts (LMS) are a new type of ionic liquid that functions both as solvent and electrolyte. Non-aqueous electrolytes have advantages over water-based solutions, such as a larger electrochemical window and large thermal stability. The proof-of-concept is given that LMSs can be used as the electrolyte in RFBs. The main advantage of [Cu(MeCN)(4)][Tf2N] is the high copper concentration, and thus high charge and energy densities of 300 kC l(-1) and 75 W h l(-1) respectively, since the copper(I) ions form an integral part of the electrolyte. A Coulombic efficiency up to 85% could be reached.
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