蓄电池
Chinese LABAT Man
固定型VRLA电池再充电特性的研究
高建峰13，柳颖23*
（1.苏州大学工程训练中心，江苏苏州215021；
2.苏州大学能源学院，江苏苏州215006；3.轻工业化学电源研究所，江苏苏州215006）
摘要：研究了固定型VRLA电池在不同充电条件下的再充电特性。结果表明：在均衡充电条件下，电池的放电容量可以100%恢复，电池的再充电特性极好：在浮充充电条件下，单体电池的再充电特性符合标准要求。因为均衡充电有利于提高电池的均匀一致性，所以在实际应用中，应定期对电池组进行均衡充电，避免电池自放电造成硫酸铬逐步积累，产生劣化单体电池。
关键词：再充电；固定型VRLA电池；均衡充电；浮充充电；不均衡率；硫酸盐化；劣化电池
中图分类号：TM912.1
文献标识码：B
文章编号：1006-0847(2017)03-142-05
ResearchonrechargingperformanceofstationaryVRLAbatteries
GAO Jianfeng ", LIU Ying 25
(1. Engineering Training Center of Soochow University; Suzhou Jiangsu 2/502I; 2. Energ) College of Soochow University; Suzhou Jiangsu 215006; 3. Institute of Electrochemical Power
Sourees of Light Industry,Suzhou Jiangsu 215006,China)
Abstract: The recharging performance of stationary VRLA batteries under the different charging conditions were studied in this paper. Test results showed that battery discharge capacity could be recovered up to 1oo % and the recharging feature was excellent under the equalizing charge condition. Under the condition of float charging the recharging performance of each cell conformed to the requirements of national standard. Because equalizing charge could help improving the uniform consistency of battery pack, the battery should be regularly charged in the process of practical application to avoid the gradual accumulation of lead sulfate from self-discharge and resulting in degradation of cells.
Keywords: recharging; stationary VRLA battery; equalizing charge; float charging; inconsistency: sulfation; degradation cell
1前言
多年来，经过各蓄电池生产厂家的不懈努力，阀控式铅酸电池已能够全面达到通信用蓄电池技术
收稿日期：2017-03-13 +通信作者
422017 No.2 Vol.54 万方数据
规范的要求。然而，在应用实践中，也出现了若干问题，主要是在使用2～3a以后，蓄电池容量显著下降，放电续航时间大大减少，电池组容量衰减呈现无规律可寻的现象")。而且，出现这些问题的场合往往供电状况良好，极少有市电长时间中断的情况发生，蓄电池组充放电使用的频率很低，呈浅充放电状态，因此用“因活性物质脱落、板栅腐蚀或电池失水、硫化等因素使容量逐渐降低”来解