一种高效快速的VRLA电池充电法  

A rapid and high efficiency charging method for VRLA battery

作　　者：陈静瑾[1] 

机构地区：[1]西安理工大学,陕西西安710048

出　　处：《电源技术》2004年第7期433-434,共2页Chinese Journal of Power Sources

摘　　要：在研究了电动自行车用阀控铅酸(VRLA)蓄电池分段恒流充电特性的基础上,通过对常规分段恒流充电法与快速分段恒流充电法的比较可见:由于后者提高了充电电流,从而使充电时间缩短到小于150 min,同时电池的循环寿命达到大于250次,但也造成了电池正极板腐蚀的提早发生。针对这一问题,提出了一种新的充电方法———高效分段恒流充电法。该方法仍采用三段恒流充电,不同于快速分段恒流充电法的是:该充电法每6次充电中5次充入电量为105%、一次充入电量为115%。该方法通过对电池充入电量的控制,防止了过充,缩短了充电时间,使电池充满,同时又使电池的温度降低,平均充电电压降低,正极板的腐蚀减小了40%,循环寿命提高了30%。Based on the research of charging characteristic with multi-step constant charging method for electric bike valve regulated lead acid (VRLA) battery system, compared with the normal multi-step constant current charging method and rapid multi-step constant current charging method, results show that the difference is the charging current is raised on latter method. The method shortens the charging time less then 150 min, and extends the cycle life more than 250, meanwhile, advances the corrosion of the grids in the positive plates. For this reason, a new method of multi-step constant current charging method called high efficiency multi-step constant current charging method was proposed. Under this method, three-step constant current charging was also used , the battery was charged with 105% of amount of charge five out of six times and once with 115% in order that it was fully charged. With controlling the amount of charge , this method prevented from overcharge, shortened the charging time, decreased the average voltage and temperature of battery, decreased the corrosion of the grids in the positive plates by about 40% , and extended the cycle life by about 30%.

关 键 词：阀控铅酸(VRLA)蓄电池 常规分段恒流充电法 快速分段恒流充电法 高效分段恒流充电法 循环寿命 

分 类 号：TM912.1[电气工程—电力电子与电力传动]