钒氧化还原液流电池的充放电特性  

The charge-discharge characteristics of vanadium redox flow battery

作　　者：陈茂斌[1] 李晓兵[2] 张胜涛[1] 刘联[2] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《电池》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)

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.

关 键 词：钒氧化还原液流电池 集流体 能量效率 过充电 

分 类 号：TM912[电气工程—电力电子与电力传动]