In this research, Mg-Ca binary alloys are evaluated as anode material candidates for primary Mg-air batteries. The effect of Ca content on self-corrosion and discharge performance of Mg anode is investigated through microstructure characterization, electrochemical measurements and half-cell discharge tests. Then the composition of Mg-Ca alloys is optimized in terms of reduced self-corrosion and improved discharge performance. The basic characteristics of Mg-air batteries with optimized Mg-Ca alloy as anode are tested and compared to those based on high purity Mg and defined commercial Mg alloys. The results show that Mg-0.1 wt. % Ca alloy has the best self-corrosion behavior and discharge performance among all prepared Mg-Ca alloys. The Mg-air battery with Mg-0.1 wt. % Ca alloy as anode offers higher cell voltage and specific energy than those based on high purity Mg, AM50 and AZ31 alloys.

在这项研究中，Mg-Ca二元合金被评估为一次Mg-空气电池的候选阳极材料。通过微观结构表征，电化学测量和半电池放电测试，研究了钙含量对镁阳极自腐蚀和放电性能的影响。然后根据减少的自腐蚀和改善的放电性能优化Mg-Ca合金的成分。测试了以优化的Mg-Ca合金为阳极的Mg空气电池的基本特性，并将其与基于高纯度Mg和确定的市售Mg合金的空气特性进行了比较。结果表明，Mg-0.1重量％。在所有制备的Mg-Ca合金中，％Ca合金具有最佳的自腐蚀行为和放电性能。Mg-0.1 wt。Mg-空气电池