Communication-Sol-Gel Synthesized Magnesium Vanadium Oxide, MgxV2O5 · nH2O: The Role of Structural Mg2+ on Battery Performance

Magnesium intercalated vanadium oxide xerogels, Mg0.1V2O5 · 2.35H2O and Mg0.2V2O5 · 2.46H2O were synthesized using an ion removal sol gel strategy. X-ray diffraction indicated lamellar ordering with turbostratic character. X-ray absorption spectroscopy indicated greater distortion of the vanadium-ox...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2016-01, Vol.163 (9), p.A1941-A1943
Main Authors: Yin, Jiefu, Pelliccione, Christopher J., Lee, Shu Han, Takeuchi, Esther S., Takeuchi, Kenneth J., Marschilok, Amy C.
Format: Article
Language:English
Subjects:
energy storage (including batteries and capacitors), charge transport, mesostructured materials
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Summary:Magnesium intercalated vanadium oxide xerogels, Mg0.1V2O5 · 2.35H2O and Mg0.2V2O5 · 2.46H2O were synthesized using an ion removal sol gel strategy. X-ray diffraction indicated lamellar ordering with turbostratic character. X-ray absorption spectroscopy indicated greater distortion of the vanadium-oxygen coordination environment in Mg0.2V2O5 · 2.46H2O. Elemental analysis after cycling in Li+ or Mg2+ based electrolytes revealed the magnesium content was unchanged, indicating structural Mg2+ are retained. The Mg0.1V2O5 · 2.35H2O material displayed high voltage, energy density, and discharge/charge efficiency, indicating promise as a cathode material for future magnesium based batteries.
ISSN:0013-4651
1945-7111
DOI:10.1149/2.0781609jes