Sol Gel Based Synthesis and Electrochemistry of Magnesium Vanadium Oxide: A Promising Cathode Material for Secondary Magnesium Ion Batteries

  • Lee S
  • DiLeo R
  • Marschilok A
 et al. 
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Abstract

Magnesium-ion batteries are desirable due to the high environmental abundance and low cost of magnesium metal. Preparation, characterization, and an initial electrochemical study of Mg0.1V2O5 prepared by a novel sol gel method with no high temperature post processing is presented. Cyclic voltammetry showed the material to be quasi-reversible, with improved kinetics in an acetonitrile relative to a carbonate based electrolyte. Galvanostatic test data under a C/10 discharge showed a delivered capacity >250 mAh/g over several cycles. Projecting these results to a magnesium anode battery would yield an average operating voltage ∼3.2 V with an energy density ∼800 mWh/g for the cathode material, suggesting promise of our synthesized material as a viable cathode material for secondary magnesium batteries.

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Authors

  • S. H. Lee

  • R. A. DiLeo

  • A. C. Marschilok

  • K. J. Takeuchi

  • E. S. Takeuchi

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