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研究了铝空气电池阳极合金Al-0.5Mg-0.1Sn-0.05Ga(质量分数,%)在铸态及40%变形状态下、在2 mol/L NaCl及4 mol/L NaOH溶液中的电化学性能,以期改善该合金的放电性能。结果表明,40%变形工艺提高了该合金的电化学活性,同时减小了合金的腐蚀速率。这是由于通过变形使铸态合金晶粒细化所致。合金的放电形貌及电化学阻抗谱(EIS)测试结果与电化学性能相符,变形合金作为阳极的空气电池,在2 mol/L NaCl溶液中的工作电位及阳极利用率高于Zn在4 mol/L NaOH溶液中相应的性能。
The electrochemical properties of Al-0.5Mg-0.1Sn-0.05Ga (mass fraction,%) in aluminum-air battery anode alloy in 2 mol / L NaCl and 4 mol / L NaOH solution at as-cast and 40% Performance, in order to improve the discharge performance of the alloy. The results show that the 40% deformation process improves the electrochemical activity of the alloy, while reducing the corrosion rate of the alloy. This is due to deformation through the as-cast alloy grain refinement caused. The discharge morphology and electrochemical impedance spectroscopy (EIS) test results of the alloy are in accordance with the electrochemical performance. The working potential and anode utilization ratio of the alloy as the anode in 2 mol / L NaCl solution is higher than that of Zn in the 4 mol / L NaOH solution in the corresponding performance.