公开(公告)号：US4198594A

公开(公告)日：1980-04-15

申请号：US899939

申请日：1978-04-25

申请人： Harvey N. Seiger ,  Thomas T. Terjesen

发明人： Harvey N. Seiger ,  Thomas T. Terjesen

IPC分类号： H01M10/44 ,  H02J7/00 ,  H02J7/04

CPC分类号： H02J7/009 ,  H01M10/445 ,  Y02B40/90 ,  Y02E70/40

摘要： The improved method of the present invention comprises charging a vented alkaline electrolyte-containing electrochemical cell employing an electrode pair selected from the group consisting of nickel-zinc, nickel-cadmium, silver-zinc and silver-cadmium and at least periodic measuring the charging efficiency of the cell by determining the rate of gas evolution from the cell. The charging of the cell is terminated when the charging efficiency substantially decreases, signifying the cell having reached an about full charge. The charging efficiency at that point normally substantially decreases to a value of about 0.5.+-.0.2. In the alkaline electrolyte-containing cells, the charging efficiency is determined according to the formula E=1-(15.8/I) v wherein E is the charging efficiency, I is the current in amperes and v is the gas generation rate in the cell in cc per second. The improved method prevents overcharging of the cell and accurately determines when an about full charge is reached. Accordingly, charging can be carried out without risk of damage to the cell and with the greatest efficiency.

摘要翻译： 本发明的改进方法包括对使用选自镍锌，镍镉，银 - 锌和银 - 镉的电极对的排气的含碱性电解质的电化学电池进行充电，并且至少周期性地测量充电效率 的细胞通过确定从细胞中释放的气体的速率。 当充电效率显着降低时，电池的充电终止，表示电池已经达到约满充电。 此时的充电效率通常基本上降低到约0.5 +/- 0.2的值。 在含碱性电解液的电池中，充电效率根据公式E = 1-（15.8 / I）v确定，其中E是充电效率，I是电流，以安培为单位，v是电池中的气体产生速率 以cc /秒计。 改进的方法可以防止电池的过充电并且准确地确定何时达到约满电荷。 因此，可以进行充电，而不会损坏电池并且以最大的效率。