Effect of Succinic Anhydride Addition on Electrochemical Behavior of Magnesium Metal Electrodes

We investigated the effect of succinic anhydride (SA) addition on electrochemical behavior of magnesium (Mg) metal electrodes. A sufficient amount of SA addition suppressed the decomposition of the anion and the formation of the carbonated layer. This made it possible to suppress the passivation of Mg metal, and revealed that the cross-section surface with high electrochemical activity had a significant effect on the electrochemical behavior of Mg metal electrodes. We investigated the electrochemical behavior of magnesium metal electrodes in the succinic anhydride-added electrolytes. By the succinic anhydride addition, the passivation of the magnesium metal electrode was suppressed, and the magnesium metal electrode with two slits, i.e., with a wide cross-section surface was more electrochemically active than that without a slit, i.e. with a narrow cross-section surface.