镁合金在Mg(ClO4)2溶液中腐蚀性能和放电性能研究

orrosion behavior, electrochemical characters and discharge performance of AZ31 magnesium alloy in various Mg(ClO4)2 solutions were investigated by means of polarization curve, electrochemical impedance spectroscopy and constant current discharge. The result shows that in 2.90 mol/L Mg(ClO4)2 solution, the transfer resistance of the alloy is the smallest and thereby the discharge capacity is the highest. The dense layer of corrosion products formed during the discharge process in Mg(ClO4)2 solution, which could inhibit the discharge process by covering effect. Finally, this paper prospects the development direction of magnesium primary batteries.