(哈爾濱工業(yè)大學(xué) 應(yīng)用化學(xué)系， 哈爾濱 150001)
摘 要: 影響鉛酸蓄電池深循環(huán)的關(guān)鍵在于板柵界面腐蝕膜的導(dǎo)電性。 通過(guò)循環(huán)伏安和交流阻抗等測(cè)試， 考察了在鉛鈣合金和鉛銻合金中添加金屬鈰和釔對(duì)合金性能的影響。結(jié)果表明： 金屬鈰和釔能提高鉛鈣合金和鉛銻合金的析氫、 析氧過(guò)電位和合金的耐蝕性能， 并且可以抑制放電時(shí)腐蝕膜中PbO2的還原及非化學(xué)計(jì)量PbOn的生成， 使腐蝕膜更具導(dǎo)電性，提高板柵合金的深循環(huán)性能。
關(guān)鍵字: 鉛酸蓄電池； 板柵合金； 鈰； 釔
（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
