摘要
本文研究了全沉积型铅酸液流电池的充放电特性,分析了充放电制度、Pb2+浓度对电池充放电特性的影响规律。结果表明:在恒流充放电时电压比较稳定,随着充放电次数的增加,平均充电电压基本不变,而平均放电电压逐渐增大,能量效率也随之增大;随着放电电流密度的增大,放电电压和放电时间逐渐减小,而且电流密度过大或过小均导致库仑效率不高,经小电流循环充放电对电池激活后,再以较大电流充放电能显著提高电池的能量效率;随着Pb2+浓度的增加,电池的最大充电电压逐渐降低,放电电压逐渐增大,而且放电时间延长,表现出更好的充放电性能。
The charge and discharge characteristics of a novel lead-acid flow battery with a single electrolyte, lead （II） in methanesulfonic acid were studied in this paper. The effects of charging and discharging conditions and lead （II） concentrations on the performance of lead-acid flow battery are analyzed in detail. The results showed that the charging voltage was almost constant were the average discharge voltage and energy efficiency increased gradually with the increasing cycle numbers of charging and discharging. The discharging voltage and time decreased gradually with increasing discharge current density, and the coulomb efficiency was smaller when the discharging current density was too large or small. The lead-acid flow battery had good charging and discharging performance with large current density after it was activated by charging and discharging with small current density. The charging voltage decreased and the discharging time at larger voltage increased with increasing lead （II） concentration, which improved the charge and discharge performance of lead-acid flow battery,
出处
《蓄电池》
2013年第5期217-221,共5页
Chinese LABAT Man
关键词
无机非金属材料
石墨毡
泡沫镍
铅酸液流电池
充放电特性
inorganic non-metallic material
graphite felt
nickel foam
lead-acid flow battery
chargeand discharge characteristics
