铅酸电池负极板栅用Al/Pb复合材料的制备及性能  

Preparation and performance of Al/Pb composite material for lead-acid battery negative grid

作　　者：郝科涛[1] 吕晓军[1] 贾明[1] 洪波[1] 蒋良兴[1,2] 方静[1] 赖延清[1,2] 李劼[1,2] 刘业翔[1] 

机构地区：[1]中南大学冶金与环境学院,长沙410083 [2]中南大学先进电池材料教育部工程研究中心,长沙410083

出　　处：《中国有色金属学报》2013年第6期1591-1597,共7页The Chinese Journal of Nonferrous Metals

基　　金：国家"十二五"科技支撑计划课题(2012BAA03B04);中央高校基本科研业务费青年教师助推项目(2012QNZ7023)

摘　　要：采用熔盐化学镀-金属浴工艺在金属Al表面镀制Pb镀层,并对复合材料的性能进行研究。利用扫描电镜和金相显微镜观察Al/Pb复合材料的表面形貌和结合界面的金相结构,利用万能材料试验机测试Pb镀层与基体的结合力,并对Pb镀层的完整性以及在5 mol/L H2SO4溶液中的耐腐蚀性和循环稳定性进行测试,结果表明:Pb镀层表面平整、光滑、无孔洞,镀层厚度均匀,且Al/Pb结合界面有明显的过渡层,形成了冶金结合;镀层与基体的结合强度均值达2.621 MPa,能够满足铅酸电池板栅的要求;采用熔盐化学镀-金属浴工艺制备的铅镀层的完整性、耐腐蚀性和稳定性满足铅酸电池负极板栅的要求,Al/Pb复合材料可以作为轻质板栅用于铅酸电池负极。Using molten salt electrolysis plating-metal bath process,Pb alloys were directly deposited on the surface of Al,and the properties of Al/Pb composite materials were studied.Using SEM and metallographic microscope,the surface morphology and combination interface of the Al/Pb composites materials were observed.Using universal testing machine,the combination strength between lead coating and matrix was tested.On the integrity,the corrosion resistance and cyclic stability of lead layer in 5 mol/L H2SO4 solution were tested.The results show that,the surface of lead layer is flat,smooth and non-holes,the thickness of the layer is uniform,and the interface of Al/Pb combination interface has obvious intermediate layer which indicates that a metallurgical combination is formed.The combination strength reaches 2.621 MPa,which can meet the requirements of lead acid battery.The integrity,corrosion resistance and stability of the lead coating prepared by this technology meet the grid requirements for lead-acid batteries,and Al/Pb composites can be used as a light-weight negative grid for lead-acid batteries.

关 键 词：AL Pb复合材料 轻型板栅 耐腐蚀性 

分 类 号：TF80[冶金工程—有色金属冶金]