The study on three Pb Ca Sn Al alloys with 0.08%, 0.4% and 1.0% of Ce indicates that the addition of Ce results in an obvious increase in the tensile strength and hardness of the alloys, an increase in the overpotenti...The study on three Pb Ca Sn Al alloys with 0.08%, 0.4% and 1.0% of Ce indicates that the addition of Ce results in an obvious increase in the tensile strength and hardness of the alloys, an increase in the overpotentials of hydrogen and oxygen evolution and the corrosion resistance as well. The study on the corrosion film formed on the alloys by cyclic voltammetry shows that the addition of Ce slows down the formation of corrosion film. It is therefore concluded from the experimental results that the addition of Ce can increase the tensile strength and HB of Pb Ca alloy and the tensile strength and HB of the alloy increase with the increase of Ce; the addition of Ce also increases the hydrogen and oxygen evolution overpotentials of Pb Ca alloy, and when the content of Ce is 1.0%, the alloy has the highest hydrogen and oxygen evolution overpoteatials; the addition of Ce improves the anticorrosion capability of the alloy, and when the content Ce is 1.0%, the alloy has the best anticorrosion capability; and the addition of Ce also slows down the formation of corrosion film.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
研究不同锡含量的铅锡合金电极在硫酸溶液中阳极膜的生成情况。高电位循环伏安和恒电位1 h后的线性电位扫描测试表明:Pb O2阳极膜的还原峰电流和还原电量均随着锡含量的增加而减小,第10次循环伏安扫描时,由含锡0%时的电流及电量10.62 m ...研究不同锡含量的铅锡合金电极在硫酸溶液中阳极膜的生成情况。高电位循环伏安和恒电位1 h后的线性电位扫描测试表明:Pb O2阳极膜的还原峰电流和还原电量均随着锡含量的增加而减小,第10次循环伏安扫描时,由含锡0%时的电流及电量10.62 m A和0.71m C降至含锡1.73%时的7.82 m A和0.52 m C;在恒电位1.5 V的线性电位扫描中,电流及电量由含0%锡时的0.95 m A和1.43×10-2m C下降至含1.73%锡时的0.61 m A和9.79×10-2m C。在恒电位0.9 V的线性电位扫描中,Pb O+Pb O·Pb SO4阳极膜的还原峰电流随着锡含量的增加而减小,由含0%锡时的0.62 m A减小至含1.73%锡时的0.13 m A;但含0.61%锡时的还原峰电量最大,可能与锡氧化物还原有关。随着锡含量增加,铅(Ⅱ)阳极膜的电导增强。SEM结果表明,添加锡可使电极上Pb O2膜的裂缝增加,并细化铅(Ⅱ)阳极膜。展开更多
文摘The study on three Pb Ca Sn Al alloys with 0.08%, 0.4% and 1.0% of Ce indicates that the addition of Ce results in an obvious increase in the tensile strength and hardness of the alloys, an increase in the overpotentials of hydrogen and oxygen evolution and the corrosion resistance as well. The study on the corrosion film formed on the alloys by cyclic voltammetry shows that the addition of Ce slows down the formation of corrosion film. It is therefore concluded from the experimental results that the addition of Ce can increase the tensile strength and HB of Pb Ca alloy and the tensile strength and HB of the alloy increase with the increase of Ce; the addition of Ce also increases the hydrogen and oxygen evolution overpotentials of Pb Ca alloy, and when the content of Ce is 1.0%, the alloy has the highest hydrogen and oxygen evolution overpoteatials; the addition of Ce improves the anticorrosion capability of the alloy, and when the content Ce is 1.0%, the alloy has the best anticorrosion capability; and the addition of Ce also slows down the formation of corrosion film.
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.
文摘研究不同锡含量的铅锡合金电极在硫酸溶液中阳极膜的生成情况。高电位循环伏安和恒电位1 h后的线性电位扫描测试表明:Pb O2阳极膜的还原峰电流和还原电量均随着锡含量的增加而减小,第10次循环伏安扫描时,由含锡0%时的电流及电量10.62 m A和0.71m C降至含锡1.73%时的7.82 m A和0.52 m C;在恒电位1.5 V的线性电位扫描中,电流及电量由含0%锡时的0.95 m A和1.43×10-2m C下降至含1.73%锡时的0.61 m A和9.79×10-2m C。在恒电位0.9 V的线性电位扫描中,Pb O+Pb O·Pb SO4阳极膜的还原峰电流随着锡含量的增加而减小,由含0%锡时的0.62 m A减小至含1.73%锡时的0.13 m A;但含0.61%锡时的还原峰电量最大,可能与锡氧化物还原有关。随着锡含量增加,铅(Ⅱ)阳极膜的电导增强。SEM结果表明,添加锡可使电极上Pb O2膜的裂缝增加,并细化铅(Ⅱ)阳极膜。
