镉镍电池组自放电检测方法

Self-discharge measuring method for Ni-Cd batteries

自放电是电池组的一项重要性能指标 ,而科学的检测方法是考核其高低的有效手段。分析了温度对电池组自放电的影响 ,并对常温搁置 2 8d和高温 5 0℃环境温度下搁置 7d进行了实验。结果表明 :常温搁置 2 8d和高温 5 0℃环境温度下搁置 7d ,其自放电量是不相等的。常温搁置 2 8d ,其荷电量不小于额定容量的 6 0 % ,而高温搁置 7d ,其荷电量不小于额定容量的 40 %。

Batteries self-discharge was an important characteristies guideline. Scientific method were availability artifice detecting batteries self-discharge. The affect of environment temperature to batteries self-discharge were analyzed, self-discharge of the battery after being shelved for 28 d at normal temperature and 7 d at 50 ℃ were tested. The results of experiment show that self-discharges are not equal between shelved 28 d at normal temperature and 7 d at 50 ℃. Batteries discharge capacity after shelved for 28 d at normal temperature is 60%, but discharge capacity is 40% for the battery shelved for 7 d at 50 ℃.