密封MH-Ni电池快速充电控制方法的研究

Study on the control method for rapid charge of sealed Ni-MH battery

D型MH Ni电池以 1C电流充电 ,测量电池电压和温度 ,计算不同充入容量下的充电接受率。结果表明充入容量为电池实际容量 10 5 %～ 110 %时充电接受率最大 ,采用电池表面温度变化率dθ/dt=2℃ /2min控制电池充电终止 ,可使电池 1C充电时充入容量控制在此范围。此方法优于用 -ΔV和温度控制MH Ni电池充电终止的方法。

The voltage and temperature of D size Ni-MH battery were measured and the charging acceptable ratio was calculated when it was charged at 1 C rate. The results show that the charging acceptable ratio will be maximum when the charging capacity is 105%～110% of the real discharging capacity, the charging capacity can be confined in this scope when the control method of dθ/dt=2 ℃/2 min is adopted, this method is better than the methods of -ΔV and temperature for Ni-MH battery.