A short review on the comparison between Li battery systems and rechargeable magnesium battery technology

D. Aurbach, Y. Gofer, Z. Lu, A. Schechter, O. Chusid, H. Gizbar, Y. Cohen, V. Ashkenazi, M. Moshkovich, R. Turgeman, E. Levi

Research output: Contribution to journalConference articlepeer-review

223 Scopus citations

Abstract

An active metal that should be considered as an anode material in high energy density batteries is definitely magnesium. It is relatively cheap, much safer to use and handle than lithium, and its compounds are usually non-toxic. Similar to lithium, magnesium is covered by surface films in any 'inert' atmosphere that contains atmospheric contaminants, and in most of the relevant electrolyte solutions for batteries. In contrast to lithium where the surface films covering the active metal are Li-ion conductors, surface films formed similarly on magnesium cannot conduct the bivalent Mg2+ ions. We developed new electrolyte solutions based on ethers of the 'glyme' family and magnesium aluminates whose electrochemical window is 2.5 V wide. The efficiency of Mg deposition-dissolution cycles in these solutions is higher than 99%. We also showed that it is possible to construct rechargeable Mg batteries using these electrolyte solutions and cathodes of the MgxMoSy type (chevrel phase), which operate at 1-1.5 V, and can deliver more than 1000 charge-discharge cycles. Some technical details of these battery systems are discussed.

Original languageEnglish
Pages (from-to)28-32
Number of pages5
JournalJournal of Power Sources
Volume97-98
DOIs
StatePublished - Jul 2001
Event10th International Meeting on Lithium Batteries - Como, Italy
Duration: 28 May 20012 Jun 2001

Bibliographical note

Funding Information:
This work was supported by Advanced Technology Upgrading (ATU Ltd.), Israel.

Funding

This work was supported by Advanced Technology Upgrading (ATU Ltd.), Israel.

FundersFunder number
ATU Ltd.
Advanced Technology Upgrading

    Keywords

    • Ethereal electrolyte solutions
    • Li batteries
    • Mg batteries
    • MgMoS cathodes

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