Electrochemical behavior of magnesium electrodes in nonaqueous electrolytes: impedance analysis and

• 作 者: Ning Liu Lidong Wang Yaoming Wu Limin Wang
• 机 构: State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chi
• 出 处: The 60th Annual Meeting of The International Society of Elec
• 发表日期: 2009年8期

　　The electrochemical behavior of magnesium electrodes were studied in a variety of nonaqueous electrolyte solutions,using polarization and impedance spectroscopy.The solutions consisted of Mg,Li,Na,Al and rare earth salt solutions in N,N-dimethylformamide (DMF),propylene carbonate (PC) and tetrahydrofuran (THF).It was demonstrated that Mg in the electrolyte with Al3+ ions obtained the improved surface film.Mg dissolution and deposition in the solutions were analyzed and simulated a reaction model in which the complicated adsorption-desorption processes took place and Al3+ ions competed with the formation of oxidize adsorbates to slow down the passivation process.