期刊
JOURNAL OF POWER SOURCES
卷 174, 期 2, 页码 1234-1240出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2007.06.206
关键词
magnesium electrochemistry; rechargeable batteries; ionic liquids; insertion electrodes
We report herein on recent studies related to nonaqueous magnesium electrochemistry and R&D of rechargeable magnesium batteries. Extensive attempts have been made to examine electrolyte systems based on ionic liquids as potential solutions for nonaqueous magnesium batteries. In general, magnesium electrodes are reactive with many imidazolium-based ionic liquids. In those liquids in which Mg electrodes are apparently stable, they develop a blocking passivation. It was possible to develop improved solutions for rechargeable magnesium batteries based on mixtures of THF, tetraglyme (where the high boiling point of the polyether improves the safety features), and complexes based on Lewis acid-Lewis base reactions between AlCl2R and MgR2 or RMgCl. The choice of the type of Lewis base, the R group and the appropriate acid-base ratios enables a reasonable specific conductivity to be obtained, 100% cycling efficiency of Mg electrodes, and a wide electrochemical window, up to 2.4 V. This work included rigorous studies by Raman spectroscopy, electron microscopy, ICP, and a variety of electrochemical techniques. In parallel, Mg insertion cathodes based on cubic TiS2, NiSx NiSSe and CuSx were also investigated. (C) 2007 Elsevier B.V. All tights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据