Pb-Al层状复合电极材料制备与性能初探

Study on Fabrication and Properties of Pb-Al Laminated Compound Electrode Materials

以Pb-Al层状复合电极材料与传统Pb合金电极为研究对象,通过在Pb与Al合金之间引入过渡金属Sn,通过物理场热镀膜及热包覆的方法制备Pb-Sn-Al层状复合电极材料,与Pb合金电极对比研究了其物理性能及电化学行为;测试了电阻分布、质量、电极极化曲线、耐蚀性、槽电压等。结果表明:与传统Pb合金电极相比,其电阻减少24%,质量减轻37.6%,电极极化电位降低2.3%,腐蚀损耗降低90.8%,槽电压降低200mV。因此Pb-Sn-Al层状复合电极材料是一种密度小、导电好、耐腐蚀的电极材料,有着重要的开发应用前景。

Pb-Sn-Al laminated compound electrode materials, based on the Pb-Al immiscible alloy system, were developed through the import of Sn as the third element. The difference of physical and electrochemical performance between the compound electrode materials and the Pb-alloy electrodes was compared and the resistivity distribution, mass, polarization curve, corrosion resistance and tank voltage were also investigated. The results show that the resistivity, mass, electrode potentials, corrosion rate, tank voltage reduces by about 24%, 37.6%, 2.3%, 90.8%, 200 mV respectively. So the Pb-Sn-Al laminated compound electrode materials have low density, good conductivity and corrosion resistance, which show a good prospect of exploiting and utilization.