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

被引：26
|
作者：
Yin, Jiefu [1 ]
Pelliccione, Christopher J. [2 ]
Lee, Shu Han [3 ]
Takeuchi, Esther S. [1 ,2 ]
Takeuchi, Kenneth J. [1 ]
Marschilok, Amy C. [1 ]
机构：
[1] SUNY Stony Brook, Chem & Mat Sci & Engn, Stony Brook, NY 11794 USA
[2] Brookhaven Natl Lab, Energy Sci Directorate, Upton, NY 11973 USA
[3] SUNY Buffalo, Chem & Biol Engn, New York, NY 14260 USA
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2016年 / 163卷 / 09期
关键词：
ELECTROCHEMICAL INSERTION; INTERCALATION ELECTRODES; APROTIC ELECTROLYTES; WATER-CONTENT; V2O5; CATHODE; NANOTUBES; SODIUM; H2O;
D O I：
10.1149/2.0781609jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Magnesium intercalated vanadium oxide xerogels, Mg0.1V2O5 center dot 2.35H(2)O and Mg0.2V2O5 center dot 2.46H(2)O 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 center dot 2.46H(2)O. Elemental analysis after cycling in Li+ or Mg2+ based electrolytes revealed the magnesium content was unchanged, indicating structural Mg2+ are retained. The Mg0.1V2O5 center dot 2.35H(2)O material displayed high voltage, energy density, and discharge/charge efficiency, indicating promise as a cathode material for future magnesium based batteries. (C) The Author(s) 2016. Published by ECS. All rights reserved.
引用
收藏
页码：A1941 / A1943
页数：3
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