(哈尔滨工业大学 应用化学系， 哈尔滨 150001)
摘 要: 影响铅酸蓄电池深循环的关键在于板栅界面腐蚀膜的导电性。 通过循环伏安和交流阻抗等测试， 考察了在铅钙合金和铅锑合金中添加金属铈和钇对合金性能的影响。结果表明： 金属铈和钇能提高铅钙合金和铅锑合金的析氢、 析氧过电位和合金的耐蚀性能， 并且可以抑制放电时腐蚀膜中PbO2的还原及非化学计量PbOn的生成， 使腐蚀膜更具导电性，提高板栅合金的深循环性能。
关键字: 铅酸蓄电池； 板栅合金； 铈； 钇
（Department of Applied Chemistry，
Harbin Institute of Technology， Harbin 150001， China）
Abstract:The conductivity of grid interface corruption film determines the deep-cycle performance of lead-acid battery. The effect of additional Ce and Y in Pb-Ca and Pd-Sb alloy were studied by means of cycle voltammetry and AC impedance. The results show that Ce and Y can improve the overpotential of hydrogen and oxygen evolution on Pb-Ca and Pd-Sb alloy and can restrain the reduction of PbO2 in the corrosion film and the formation of no-stoichiometric PbOn during discharge. Furthermore， they can improve the conductivity of the corrosion film and increase the deep-cycle performance of grid alloy.
Key words: lead-acid battery； grid alloy； Ce； Y
