目前我院和武汉大学共同研制的200瓦,24伏氨——空气燃料电池,允许±10％的电压波动。因每个单电池的电压只有0.75伏左右,要达到电源电压的上限26.4伏,应由35个单电池串接起来。我们在研制过程中发现,要使每个单电池的性能和寿命一致是十分困难的,它们之间的差别有时很大。这样,在电池组的长期供电中,就难免有一个或几 At present, our hospital and Wuhan University jointly developed a 200-watt, 24-volt ammonia-air fuel cell that allows ± 10% voltage fluctuations. Because each cell voltage is only about 0.75 volts, to reach the upper limit of the power supply voltage 26.4 volts, 35 cells should be connected in series. We found in the development process, to make the performance of each single cell and life expectancy is very difficult, the difference between them is sometimes great. In this way, in the long-term battery power supply, it is inevitable that there is one or a few