中文摘要：

将乙烯硫脲与不同格氏试剂EtMgBr／THF、PhMgBr／THF、PhMgCl／THF反应制得了3种乙烯硫脲一格氏试剂／TI-IF电解液．通过循环伏安测试了在Pt电极上的镁沉积．溶出性能．结果表明。形成的乙烯硫脲．格氏试剂/THF电解液未改变电解液的镁沉积一溶出性能，却拓宽了其电化学窗VI．如乙烯硫脲．PhMgBr／THF溶液的氧化分解电位可达2．3V（vs．Mg^2＋），该电解液的电导率随溶液溶度增大先升后降，0．9mol·L。时其电导率最高，可达615μS·cm^-1．比较乙烯硫脲．PhMgBr／THF在Pt、Ni、Cu和Al四种金属电极的电化学性能，发现在Ni电极的氧化分解电位最高，可达2．4V（vs．Mg／Mgn），且具有良好的镁沉积一溶出性能．CR2016扣式电池的循环测试表明，Ni基底上的镁沉积招出电位较低，其循环效率可达到92％，适宜作为实用电池的集流体．

英文摘要：

Three kinds of ethylenethiourea-Grignard reagent/THF electrolytes were prepared by reacting ethylenethiourea with different Grignard reagents such as EtMgBr/THF, PhMgBr/THF and PhMgC1/THF. Cyclic voltammetry tests on Pt disk electrode show that the electrolytes have good performance of magnesium deposition-dissolution as Grignard reagents and higher anodic stabilities than Grignard reagents. The oxidative decomposition potential of ethylenethiourea-PhMgBr/THF on Pt electrode can reach 2.3 V（vs. Mg/Mg^2＋）. The conductivity of ethylenethiourea-PhMgBr/THF electrolyte initially increases and then decreases with the increase of the concentration and reaches to the highest value of 615 txS μm^-1 at 0.9 mol .L^-1. The comparison in cyclic voltammograms of 0.9 mol. L^-1 ethlenethiourea-PhMgBr/THF electrolyte on Pt, Ni, Cu and Al electrodes demonstrates that the oxidative decomposition potential on Ni electrode is the highest （2.4 V （vs, Mg/Mg2＋））. Constant-current discharge and charge tests of coin cells further show that the magnesium deposition-dissolution potential on Ni substrate is low and the stable cycle efficiency can reach 92%. For ethlenethiourea-PhMgBr/THF electrolyte, nickel is suitable to be used as a practical current collector.