Magnesium-antimony liquid metal battery for stationary energy storage

David J. Bradwell, Hojong Kim, Aislinn H.C. Sirk, Donald R. Sadoway

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

Batteries are an attractive option for grid-scale energy storage applications because of their small footprint and flexible siting. A high-temperature (700 °C) magnesium-antimony (Mg||Sb) liquid metal battery comprising a negative electrode of Mg, a molten salt electrolyte (MgCl 2-KCl-NaCl), and a positive electrode of Sb is proposed and characterized. Because of the immiscibility of the contiguous salt and metal phases, they stratify by density into three distinct layers. Cells were cycled at rates ranging from 50 to 200 mA/cm 2 and demonstrated up to 69% DC-DC energy efficiency. The self-segregating nature of the battery components and the use of low-cost materials results in a promising technology for stationary energy storage applications.

Original languageEnglish (US)
Pages (from-to)1895-1897
Number of pages3
JournalJournal of the American Chemical Society
Volume134
Issue number4
DOIs
StatePublished - Feb 1 2012

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Antimony
Liquid metals
Energy storage
Magnesium
Electrodes
Salts
Metals
Electrolytes
Energy efficiency
Molten materials
Solubility
Technology
Costs and Cost Analysis
Temperature
Costs

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Bradwell, David J. ; Kim, Hojong ; Sirk, Aislinn H.C. ; Sadoway, Donald R. / Magnesium-antimony liquid metal battery for stationary energy storage. In: Journal of the American Chemical Society. 2012 ; Vol. 134, No. 4. pp. 1895-1897.
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Magnesium-antimony liquid metal battery for stationary energy storage. / Bradwell, David J.; Kim, Hojong; Sirk, Aislinn H.C.; Sadoway, Donald R.

In: Journal of the American Chemical Society, Vol. 134, No. 4, 01.02.2012, p. 1895-1897.

Research output: Contribution to journalArticle

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