铅酸蓄电池正极板栅用铅基稀土合金的研究.pdf

蔓錾虿至卫医■墨蛋[二二二二二二二二二二：二二二二二二二二 铅酸蓄电池正极板栅用铅基稀土合金的研究 窦传龙一，李瑞珍2，陈红雨2 (1．湖南株洲冶炼集团，湖南株洲412004；2．华南师范大学化学与环境学院，广东广州510006) 铅酸蓄电池正极板栅的性质。实验结果表明，稀土元素Sm，La或者La-Ce混合稀土的加入能抑制阳极膜中高阻抗的 Pb(11)化合物的生长，降低腐蚀膜的阻抗，并增加膜的孔隙率。同时增加了析氢析氧的过电位，从而抑制了氢气和氧气的 析出，有利于电池免维护性能的提高。 关键词：铅一稀士合金；VRLA电池；阳极Pb(11)膜；正极板栅 中图分类号：TM912．1 文献标识码：A 文章编号：1002—087 X(2010)03-0276-04 oflead--rareearth as oflead-·acid Investigation alloyspositivegrid battery DOU Rui—zhen2，CHEN Chuan—lon91，LI Hong—yu2 J．ZhuzhouSmelter Hunan r GroupCo．，Ltd,Zhuzhou412004，China； 2．School and Normal ofChemistryEnvironment，SouChinaUniversity,GuangzhouGuangdong510006,China) Abstract：Theanodicbehavioroflead——rareearth insulfudcacidsolutionhasbeenstudiedlinear alloys using sweep electrochemical and circuit voltammetry(LSV)， impedancespectroscopy(EIS)，A．C。voltammetry，open resultsshowthatthe potential—time．The experimental elementsinthelead caninhibitthe ofthe the oftheanedicPb alloys growth anodic盹(II)films，reduceresistivity and ofthe andincreasethe overpotential (II)films， porosity．Moreover，thehydrogenoverpotentialoxygen are the is to themaintenance—free electrodeswithrareearth than higher counterparts，whichhelpfulimprove property ofleadacid