新蓄电池
Chinese LABAT Man
混合型硅溶胶的制备及在电动助力车用
蓄电池中的应用
翟进，翟洋2，刘娟？，唐晓东3，孙玉仁3
（1.扬州大学化学化工学院，江苏扬州225002；2.江苏省委党校研究生班，江苏扬州225002；
3.扬州阿波罗蓄电池有限公司，江苏扬州225002）
摘要：以气相二氧化硅为原料，将胶体电解剂中占总量50%以上的SiO，与KOH反应，生成 K,SiO，溶液，而将其余的SiO2采用机械搅拌方法分散于其中，配制成混合硅溶胶。这种硅溶胶兼有两种胶体的优点。实现人为主动调节胶体颗粒大小分布和胶体电解剂性能。混合胶体应用于6DZM10电动助力车用蓄电池，能满足0.85C%大电流放电使用条件，电池经100%DOD大电流充、放电循环，寿命达到300次以上。
关键词：硅溶胶；胶体电解剂；气相二氧化；电动助力车用VRLA蓄电池：深循环寿命中图分类号：TM912.9
文献标识码：B文章编号：1006-0847(2010)04-172-06
Preparationandapplicationofmixed-typesilicasolinVRLA
batteriesforelectricbikes
QU Jin', QU Yang, LIU Juan', TANG Xiaodong, SUN Yuren
(l. School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou Jiangsu, 225002; 2. Posigraduate of Party School of CO0C Jiangsu Committee,Yangzhou Jiangsu,225002; 3.Yangzhou
Apollo Battery Co., Ltd. Yangzhou Jiangsu, 225002)
Abstract: The fumed SiO, (≥ 50 wt.% in gelled electrolyte) reacts with KOH to form K,SiO, solution, the rest SiO, is dispersed into the solution by using mechanical stirring, and then mixed with H,SO, to pre-pare a mixedtype silicasol. The silicasol has the properties of both silicasols. The size distribution of the silicasol particles and the behaviors of the gelled electrolyte can be expediently and forwardly regulated in the mixedtype silicasol system. The application conditions of highcurrent dischargeing at 0.85Cre A are allowable if the mixed-type silicasol is used in 6DZM10 VRLA batteries for electric bikes. After 100 % DOD cycling at high rate, the deep-cycle life of the battery can reach more than 300 cycles.
Key words: silicasol; gelled electrolyte; fumed SiO2; VRLA battery for electric bike; deep-cycle life
1前言
胶体电解液蓄电池具有不漏酸、充/放电过程
收稿日期：2009-11-10 172F2010No4Vo 万方数据
中无酸雾溢出，电池中电解质储存在胶体网络结构中，在垂直方向上没有酸浓度的分层现象。胶体电池中电解质的总量比同型号贫液ACM电池的多，电池充电接受性能好，水分损失少，故胶体电池相对不易产生热失控。大电流放电性能优越，深放电后恢复性能明显优于贫液式阀控电池。郭永榔"曾报道，将胶体蓄电池搁置3年，其容量仍有1/3，