Boron-based electrolyte solutions with wide electrochemical windows for rechargeable magnesium batteries
Top Cited Papers
- 21 August 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Energy & Environmental Science
- Vol. 5 (10), 9100-9106
- https://doi.org/10.1039/c2ee22509c
Abstract
Recently, we have developed a boron based electrolyte system with outstanding electrochemical performance, formed through the reaction of tri(3,5-dimethylphenyl)borane (Mes3B) and PhMgCl in THF, for rechargeable magnesium batteries. In this paper, the main components and equilibria of the unique boron based electrolyte solutions are identified by NMR, single-crystal XRD, etc. The results prove that the solutions contain various magnesium species, such as Mg2Cl3 +, MgCl+, Ph2Mg and the tetracoordinated boron anion [Mes3BPh]−. Fluorescence spectra and Raman spectroscopy analyses indicate that the high anodic stability (ca. 3.5 V vs. Mg reference electrode (RE)) of the Mes3B–(PhMgCl)2 electrolyte is attributed to the non-covalent interactions between the anion [Mes3BPh]− and Ph2Mg. Furthermore, the air sensitivity of the boron based electrolyte and its electrochemical stability on the different current collectors are studied. Finally, the reversible electrochemical process of Mg intercalation into a Mo6S8 cathode confirms that the boron based electrolyte could be practically used in rechargeable Mg battery systems.Keywords
This publication has 28 references indexed in Scilit:
- Study of electronic effect of Grignard reagents on their electrochemical behaviorElectrochemistry Communications, 2010
- Challenges for Rechargeable Li BatteriesChemistry of Materials, 2009
- Building better batteriesNature, 2008
- Electrolyte Solutions for Rechargeable Magnesium Batteries Based on Organomagnesium Chloroaluminate ComplexesJournal of the Electrochemical Society, 2001
- Issues and challenges facing rechargeable lithium batteriesNature, 2001
- Prototype systems for rechargeable magnesium batteriesNature, 2000
- The electrodeposition of magnesium using solutions of organomagnesium halides, amidomagnesium halides and magnesium organoboratesElectrochemistry Communications, 2000
- Magnesium Deposition and Dissolution Processes in Ethereal Grignard Salt Solutions Using Simultaneous EQCM-EIS and In Situ FTIR SpectroscopyElectrochemical and Solid-State Letters, 1999
- Reversibility of electrochemical magnesium deposition from Grignard solutionsJournal of Applied Electrochemistry, 1997
- Nonaqueous Electrochemistry of Magnesium: Applications to Energy StorageJournal of the Electrochemical Society, 1990