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| Properties of Anodic Scale of New Pb-Ca Grid Alloy |
| Dangguo Li;Genshu Zhou;Guanfa Lin;Maosheng Zheng |
| 西安交通大学材料科学与工程学院 |
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Abstract The corrosion-resistance properties of new grid alloy and traditional alloy were studied using anodic polarization curve and A.C impendance. The anodic films of comparative alloys formed in sulfuric solution at anodic 0.9V potential corrosion for 6h were investigated by means of XPS and XRD methods. The result showed that new grid alloy has batter corrosion-resistance behavior than that of traditional alloy, the growth of Pb(Ⅱ) dioxide in new alloy surface layer was inhabited. By means of A.C impendance method, the resistor of the corrosion layers were decreased, it was found that the new alloy can encourage the development of PbO2 in the scale, and enhance the conductivity of the anocdic scale, then, the deep recycling properties of the battery was promoted greatly. The new alloy can serve as the candidate for the grid material in maintenance-free lead/acid battery.
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Received: 19 July 2004
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