Improved electrolyte solutions for rechargeable magnesium batteries

Yosef Gofer; Orit Chusid; Haim Gizbar; Yulia Viestfrid; Hugo E. Gottlieb; Vered Marks; Doron Aurbach

doi:10.1149/1.2186003

Improved electrolyte solutions for rechargeable magnesium batteries

Yosef Gofer, Orit Chusid, Haim Gizbar, Yulia Viestfrid, Hugo E. Gottlieb, Vered Marks, Doron Aurbach

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

124 Scopus citations

Abstract

Electrolyte solutions of magnesium organo-halo-aluminates in ethers are suitable for rechargeable magnesium batteries as they enable highly reversible electrodeposition for magnesium while they possess a wide electrochemical window (>2.2 V). Adding LiCl or tetrabutylammonium chloride to these solutions considerably improves their ionic conductivity, the kinetics of the Mg deposition-dissolution processes, and the intercalation behavior of Mg _xMo₆S₈ Chevrel cathodes. The dissolution of both salts in the electrolytic solutions involves acid-base reactions with complex species. Multinuclei nuclear magnetic resonance and Raman spectroscopy were used in conjunction with electrochemical techniques to study these systems. The nature of these reactions, their products, and the way they influence the various properties of these solutions, are discussed herein.

Original language	English
Pages (from-to)	A257-A260
Journal	Electrochemical and Solid-State Letters
Volume	9
Issue number	5
DOIs	https://doi.org/10.1149/1.2186003
State	Published - 2006

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AU - Gofer, Yosef

AU - Chusid, Orit

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AU - Viestfrid, Yulia

AU - Gottlieb, Hugo E.

AU - Marks, Vered

AU - Aurbach, Doron

PY - 2006

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AB - Electrolyte solutions of magnesium organo-halo-aluminates in ethers are suitable for rechargeable magnesium batteries as they enable highly reversible electrodeposition for magnesium while they possess a wide electrochemical window (>2.2 V). Adding LiCl or tetrabutylammonium chloride to these solutions considerably improves their ionic conductivity, the kinetics of the Mg deposition-dissolution processes, and the intercalation behavior of Mg xMo6S8 Chevrel cathodes. The dissolution of both salts in the electrolytic solutions involves acid-base reactions with complex species. Multinuclei nuclear magnetic resonance and Raman spectroscopy were used in conjunction with electrochemical techniques to study these systems. The nature of these reactions, their products, and the way they influence the various properties of these solutions, are discussed herein.

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Improved electrolyte solutions for rechargeable magnesium batteries

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