Mg-Ni非晶合金电极容量衰退机理研究

The study on capacity deterioration of the amorphous Mg Ni alloy electrode

对Ｍｇ－Ｎｉ非晶合金电极的容量衰退机理研究表明，充放电过程中Ｍｇ在电解液中的腐蚀氧化是导致其容量急剧降低的主要原因，所形成的Ｍｇ（ＯＨ）２腐蚀产物包围在合金颗粒周围使其与周围基体脱离接触。

The study on capacity deterioration of the amorphous Mg Ni alloy electrode shows that the quick oxidation of Mg during charging discharging cycling leads to the deterioration because the particles surrounded by the oxidation cluster fail to charge or discharge hydrogen. The study also shows that the composition of alloys and charging discharging cycling have less effect on the diffusion of hydrogen atom.