The effect of barium additives on the process of anodic corrosion of lead-tin-calcium alloys in a 4.8 М sulfuric acid solution was studied. Cyclic voltammetry, impedance spectroscopy, weight loss measurements and sca...The effect of barium additives on the process of anodic corrosion of lead-tin-calcium alloys in a 4.8 М sulfuric acid solution was studied. Cyclic voltammetry, impedance spectroscopy, weight loss measurements and scanning electronic microscope analysis have allowed exploring the oxidation process and characterizing the formed corrosion layer. According to our results, barium introduction into lead-tin-calcium alloys increases their hardness, reduces their electrochemical activity, and improves their corrosion stability. Reduction of the calcium content in the alloy can be compensated by adding barium. Barium dopation at lead-tin-calcium alloys decreases the resistance of the oxide layer formed on the grid surface, in a deeply discharged state, and raises its resistance during floating conditions and at a charged state of the positive electrode.展开更多
A detailed investigation on Pb-Ca-Sn alloys was made in order to choose suitable grid alloys materials for thin plate lead-acid batteries. The electrochemical performances of alloys were investigated by electrochemica...A detailed investigation on Pb-Ca-Sn alloys was made in order to choose suitable grid alloys materials for thin plate lead-acid batteries. The electrochemical performances of alloys were investigated by electrochemical corrosion experiment, scanning electron microscope (SEM), and cyclic voltammetry (CV) test. The results indicate that Pb-Ca-Sn-Bi-Cu alloys can be used to make the grids used for thin grid lead-acid batteries, the content of bismuth has primary effects on the corrosion resistance of grid alloys, the composition of alloys plays an important role on batteries performance, and appropriate scale of elements can be choosed to obtain optimal electrochemical performance. The lead-acid batteries using this kind of grid show good performance by cycle life test.展开更多
An investigation on Pb-Ca-Sn alloys has been performed in order to choose suitable grid alloys materials for spirally wound lead-acid batteries. The electrochemical performances of alloys were characterized by electro...An investigation on Pb-Ca-Sn alloys has been performed in order to choose suitable grid alloys materials for spirally wound lead-acid batteries. The electrochemical performances of alloys were characterized by electrochemical corrosion experiment, SEM, EIS and Cyclic voltammetry test. The results indicate that alloys have different electrochemical performance due to the difference in components. They also have different corrosion resistance. The secondary phase formation could be avoided by adjusting the ratio of the component elements. So choosing a suitable ratio of elements is beneficial to corrosion resistance. The Pb-Ca-Sn-Bi-Cu alloy can be rolled to lead foil for use in thin grid of spirally wound lead-acid batteries with good electrochemical performance. The cycle life test showed good battery performance for this kind of batteries.展开更多
文摘The effect of barium additives on the process of anodic corrosion of lead-tin-calcium alloys in a 4.8 М sulfuric acid solution was studied. Cyclic voltammetry, impedance spectroscopy, weight loss measurements and scanning electronic microscope analysis have allowed exploring the oxidation process and characterizing the formed corrosion layer. According to our results, barium introduction into lead-tin-calcium alloys increases their hardness, reduces their electrochemical activity, and improves their corrosion stability. Reduction of the calcium content in the alloy can be compensated by adding barium. Barium dopation at lead-tin-calcium alloys decreases the resistance of the oxide layer formed on the grid surface, in a deeply discharged state, and raises its resistance during floating conditions and at a charged state of the positive electrode.
文摘A detailed investigation on Pb-Ca-Sn alloys was made in order to choose suitable grid alloys materials for thin plate lead-acid batteries. The electrochemical performances of alloys were investigated by electrochemical corrosion experiment, scanning electron microscope (SEM), and cyclic voltammetry (CV) test. The results indicate that Pb-Ca-Sn-Bi-Cu alloys can be used to make the grids used for thin grid lead-acid batteries, the content of bismuth has primary effects on the corrosion resistance of grid alloys, the composition of alloys plays an important role on batteries performance, and appropriate scale of elements can be choosed to obtain optimal electrochemical performance. The lead-acid batteries using this kind of grid show good performance by cycle life test.
文摘An investigation on Pb-Ca-Sn alloys has been performed in order to choose suitable grid alloys materials for spirally wound lead-acid batteries. The electrochemical performances of alloys were characterized by electrochemical corrosion experiment, SEM, EIS and Cyclic voltammetry test. The results indicate that alloys have different electrochemical performance due to the difference in components. They also have different corrosion resistance. The secondary phase formation could be avoided by adjusting the ratio of the component elements. So choosing a suitable ratio of elements is beneficial to corrosion resistance. The Pb-Ca-Sn-Bi-Cu alloy can be rolled to lead foil for use in thin grid of spirally wound lead-acid batteries with good electrochemical performance. The cycle life test showed good battery performance for this kind of batteries.
