摘要
建立了一种原位监测钒电池正极电解液荷电状态SOC(State of Charge)的方法。通过测定钒电池正极电解液的氧化还原电位值ORPa(Oxidation Reduction Potential),利用ORPa值与ln(1/SOCa-1)在SOCa(正极电解液荷电状态)为(0,100%)的开区间内呈线性关系这一规律,建立了ORPa-SOCa关系方程,并对该方程进行温度修正。采用修正方程计算所得的SOCa值与电位滴定法测得的SOCa值比较,误差小于±1.50%,可实现正极电解液荷电状态的原位监测。
A method of in situ monitoring of SOC （State of Charge） for positive electrolyte in vanadium battery was presented, in which a temperature amended linear equation of oxidation reduction potential of positive electrolyte （ORPa） with state of charge of positive electrolyte （SOCa） was founded. The results show that the values of ORPa are keeping linear with the values of In （1/SOCa--1）in （0, 100%） region. There shows less than ± 1.50% error between the SOCacalculated by the ORPa-SOC, equation and mensurated by potentiometric titration analysis. Thus, the presented method can be realized in situ monitoring of SOCk.
出处
《电源技术》
CAS
CSCD
北大核心
2009年第4期295-297,共3页
Chinese Journal of Power Sources
关键词
氧化还原电位
钒电池
荷电状态
原位监测
oxidation reduction potential
vanadium battery
state of charge
in situ monitoring
