摘要
采用恒流限压充放电法,研究了充放电电流密度对钒氧化还原液流电池的容量、库仑效率和能量效率的影响,同时研究了过充条件下的集流体腐蚀情况,初步建立了钒氧化还原液流电池稳定有效的充放电模式。理想的充放电电流密度为63.8 mA/cm2,对应的库仑效率是95.09%,能量效率是70.79%。充电电压上限不能超过1.75 V。
The influences of the charge-discharge current density on the capacity, coulombic efficiency and energy efficiency of vanadium redox flow battery were investigated by the galvanostatic limited voltage charge-discharge test. The corrosion of current collector under the overcharge was studied. The study established a stable and efficient charge-discharge mode of vanadium redox flow battery. The ideal charge-discharge current density was 63.8 mA/cm^2, corresponding to the coulombic efficiency of 95.09% and the energy efficiency of 70.79%. The upper limit of the charge voltage could not exceed 1.75 V.
出处
《电池》
CAS
CSCD
北大核心
2008年第1期37-39,共3页
Battery Bimonthly
基金
中国工程物理研究院电子工程研究所所长基金(JM200603)
关键词
钒氧化还原液流电池
集流体
能量效率
过充电
vanadium redox flow battery
current collector
energy efficiency
overcharge
