PE隔板在VRLA电池中的应用研究  

Application of PE separators in VRLA batteries

作　　者：刘玉 郭志刚 李桂发 邓成智 陈飞 陈志平 毛书彦 

机构地区：[1]天能集团研究院,浙江长兴313100

出　　处：《蓄电池》2016年第4期157-161,195,共6页Chinese LABAT Man

摘　　要：本文中,针对AGM隔板的缺陷,将PE与AGM组合形成复合隔板,然后从隔板的回弹性、极群的装配压力及电解液分层几方面对其进行了研究,并且从电池的常规性能和循环寿命两方面进行了应用验证。实验结果表明:AGM中增加PE层,能够减缓极群压力的下降,不会加剧电解液分层,可有效减少铅枝晶生长引起的短路现象;但在低温环境下,PE层增大了电池的内阻,对低温放电性能起到了明显的抑制作用,此外也降低了电池的氧复合效率,增大了电池的失水量。Because of the defects of AGM separators,the PE and AGM separators are combined to form a hybrid separator in this paper.Then the PE-AGM hybrid separator is studied mainly in view of resilience of separator,assembling pressure of group and stratification of electrolyte,and is verified from two aspects of conventional properties and cycle life of battery.The experiments results show that the PE-AGM hybrid separator can slow down pressure drop,reduce the short-circuit phenomenon caused by the lead dendrite,and will not increase electrolyte stratification.However,at low temperatures,the PE separator can increase the resistance,and play a significant inhibitory effect on low temperature discharge.In addition,it will reduce the efficiency of oxygen combination and increase water loss of the battery.

关 键 词：AGM隔板 PE隔板 回弹性 电解液分层 铅枝晶 铅酸蓄电池 失水 

分 类 号：TM912.1[电气工程—电力电子与电力传动]