不同温度下阀控电池失水方式分析  

Analysis of the ways of water loss of VRLA batteries at different temperatures

作　　者：姚秋实[1] 李进兴[1] 方明学[1] 李鹏[1] 方广民 YAO Qiushi;LI Jinxing;FANG Mingxue;Li Peng;FANG Guangmin(Zhejiang Tianneng Battery Group Co.,Ltd.,Changxing Zhejiang 313100,China)

机构地区：[1]浙江天能电池集团有限公司,浙江长兴313100

出　　处：《蓄电池》2019年第1期35-37,共3页Chinese LABAT Man

摘　　要：采用ABS塑料电池壳组装成的12 V 20 Ah电池,分别在25℃和40℃下进行循环测试。相比之下,40℃条件下,充放电量比值较大,多充入的电量主要用于电解水。在120次循环后,40℃下的失水量占电解液总质量的2.94%,25℃下的失水量占电解液总质量的1.91%。通过实验计算,25℃下通过安全阀的失水量占总失水量的80%以上。在40℃下虽然通过安全阀的失水量仍占主导地位,但通过塑壳的失水量达到了总失水量的30%。因此,高温下通过塑壳失水达到了不可忽视的程度。The 12 V 20 Ah VRLA batteries assembled with ABS containers are tested at 25℃and 40℃.The charging ratio is higher at 40℃than that at 25℃because more electricity at 40℃is used for electrolysis of water.After 120 cycles,the water loss at 40℃is 2.94%of the total electrolyte,and the water loss at 25℃is 1.91%of the total electrolyte.Basing on the experiment calculation,the water loss through the safety valves is over 80%of the total water loss at 25℃.At 40℃,the main way of water loss is passing through the safety valves,but the water loss through the container is up to 30%of the total water loss.The water loss through the container should not be ignored at high temperature.

关 键 词：阀控式电池 温度 失水 电池壳 安全阀 ABS 

分 类 号：TM912.9[电气工程—电力电子与电力传动]