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为了获得铅含量更低的Mg-Al-Pb合金阳极材料,采用浸泡实验及电化学测试技术研究了Mg-9%Al-2.5%Pb(质量分数)合金的腐蚀及放电行为,并与Mg-6%Al-5%Pb合金进行比较。研究表明:与Mg-6%Al-5%Pb相比,更高的Al含量使得Mg-9%Al-2.5%Pb合金具有更低的自腐蚀速率及更高的阳极利用率;由于Pb含量降低,其放电活性有所减弱但仍能满足阳极材料的要求。因此,Mg-9%Al-2.5%Pb合金有望作为海水激活电池阳极的备选材料,并且其具有更低的Pb含量。
In order to obtain Mg-Al-Pb alloy anode material with lower lead content, the corrosion and discharge behavior of Mg-9% Al-2.5% Pb (mass fraction) alloy were investigated by immersion test and electrochemical test, 6% Al-5% Pb alloy for comparison. The results show that the higher Al content makes the Mg-9% Al-2.5% Pb alloy have lower self-corrosion rate and higher anode utilization than Mg-6% Al-5% Pb. Reduce its discharge activity weakened but still meet the anode material requirements. Therefore, Mg-9% Al-2.5% Pb alloy is expected to be an alternative material for seawater activated battery anodes, and it has lower Pb content.