摘要
Charge and discharge characteristics of Ni/MH batteries are investigated with experiments. During battery’s working, the voltage, capacity, temperature and internal resistance were recorded, corresponding curves were depicted. Variations of the aforementioned four parameters are differently obvious. Ending criteria of charge and discharge of Ni/MH batteries are discussed on the basis of the curves. Voltage, capacity and temperature of a battery can be used as ending criteria during charge. When discharge takes place, voltage, capacity and internal resistance can be chosen as ending criteria. As a whole, capacity is more suitable for being used as ending criteria of charge and discharge than the other three parameters. At last, the capacity of a battery is recommended to be ending criteria of charge and discharge. The conclusions will provide references to different capacity Ni/MH batteries for electric vehicles.
进行了镍氢电池的充放电实验 ,检测了电池工作时的电压、容量、温度和内阻 ,绘制了相应的曲线 .上述 4个参数的变化显著程度不同 .借助曲线 ,讨论了镍氢电池充放电终止指标的确定原则 .充电时 ,电池电压、容量和电池的温度可作为终止指标 .放电时 ,电池的电压、容量和内阻可作为终止指标 .总体而言 ,用容量作为充放电的终止指标比较准确 ,由此提出了以电池容量作为充放电终止指标的建议 ,所得到的结论对不同容量的镍氢电池具有参考意义 .
