试验研究
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PE+AGM双层隔板在动力型VRLA电池中的应用
祁永军，孟祥辉
（河北奥冠电源有限公司，河北衡水053000）
摘要：本文根据动力型VRLA电池常见的单只落后现象，在原有VRLA动力型电池使用的AGM隔板基础上，在AGM和极板间加一层PE隔板用以避免极板间微短路的发生，同时观察此PE隔板对电解液的含浸效果以及较相对常规的AGM电池在内阻、失水、循环寿命等方面的影响。试验结果显示，PE隔板对电解液有更好的含浸能力，并且没有使电池内阻明显增加，也没有使电池在循环使用过程中明显失水，避免了微短路的同时改善了电池循环寿命的一致性，特别是对电池的负极其有明显的改善作用。
关键词：PE+AGM双层隔板；短路；失水；电解液含漫能力；电池内阻；动力型阀控蓄电池
中图分类号：TM912.9
文献标识码：A
文章编号：1006-0847(2016)02-59-05
TheapplicationofPE+AGMdoublelayersofseparatorsintheVRLA
batteriesforbicyclesandvehicles
QIYongjun,MENG Xianghui
(Heibei Algrand Power Co.,Ltd.,HengshuiHebei 053000,China)
Abstract: According to that the main failure mode of power VRLA batteries for bicycle and vehicles is single cell lagging because of capacity loss which is similar to short circuit, hence we added one thin layer of PE separator between AGM and negative plate to prevent battery from short circuit. In the other hand, we wanted to know the influences of PE separators on the battery performances of internal resistance, water loss, cycle life, etc. The test results showed that PE separator had the better ability to absorb water than AGM, not changed significantly the internal resistance and water loss, and prevented the battery from short circuit, in the meantime improved the consistency of cycle life especially for negative performance.
Key words: PE+AGM double layer separator; short-circuit; water-loss; infiltration capability of electrolyte; internal resistance; power VRLA batteries
0前言
目前，动力型免维护铅酸蓄电池遭遇顾客退收稿日期：2016-01-25
货的主要原因是单只落后，这种落后又表现在某一单格正负极容量同步衰减，出现短路的现象。动力型铅酸蓄电池的特点主要是不断地进行放电和再充电，输出电流大，特别是车辆开始起动或加速时，这就要求电池具有极板较薄、极板间距较小、电解液密度较大等特点。较薄的极板和较小的极板间距容易使电池极板间发生微短路的现象。这类电池所用隔板主要是AGM隔板，其特点是孔率较高，孔
2016 No.2 Vo1.5359