液态铅在大气条件下的氧化行为  

Oxidation behavior of molten lead in atmosphere

作　　者：杨泽焱[1] 冼爱平[1] 

机构地区：[1]中国科学院金属研究所沈阳材料科学国家(联合)实验室,辽宁沈阳110016

出　　处：《电源技术》2011年第1期66-70,共5页Chinese Journal of Power Sources

基　　金：国家高技术研究发展计划项目(2002AA322040)

摘　　要：液态铅在大气条件下的氧化是铅酸电池制造中的一个重要问题。采用表面刮渣法和X射线光电子能谱(XPS)研究了液态纯铅在大气条件下的氧化行为,结果表明温度对氧化速度有重要影响;温度从380℃增加到500℃,表面氧化渣生成速度提高到原来的3.7倍。液态纯铅在大气条件下20min氧化后形成的表面氧化膜成分有一平台区,420℃氧化时,表面氧化膜为Pb3O2,厚度为32nm,500℃氧化时,表面氧化膜为Pb5O3,厚度为68nm,两者均为新的未知铅氧化物。氧化膜成分平台区以下有一过渡区。由平台区与过渡区的总厚度估算表层氧化膜的厚度为:420℃时为116nm,500℃时为212nm。The oxidation of molten Pb under atmosphere was an important issue in manufacture of the Pb acid battery,which was studied by scraping slag method and XPS analysis.The results show that the temperature has a significant influence on the oxidation rare of the molten pure Pb;the forming rate of the Pb oxide slag exposed at 500 ℃ is as about 3.7 times as that exposed at 380 ℃.After exposure to air for 20 min,the oxide film of molten Pb consists of a platform zone with constant O/Pb ratio and a transition zone;the oxide film is Pb3O2 with the thickness of about 32 nm for the platform zone at 420 ℃;and Pb5O3 with the thickness of about 68 nm at 500 ℃.Both the oxides are new unknown Pb-oxides.The total thickness of the oxide film is about 116 nm at 420 ℃ and 212 nm at 500 ℃,respectively.

关 键 词：铅 液态金属 氧化 铅酸电池 

分 类 号：TM912[电气工程—电力电子与电力传动]