CAJ | 학술논문

以甲基磺酸为溶剂，制备了用于氧化还原电池正极的钒电解液，并对不同自由酸浓度的电解液进行了电导率、粘度和热稳定性、电化学性能测试。结果表明，当 CH3 SO3 H的浓度为2 mol/L时，电解液的导电性最好；随着CH3 SO3 H浓度的升高，电解液的粘度逐渐增大，钒离子的扩散系数逐渐降低。当自由酸的浓度为4 mol/L时，电解液具有良好的稳定性，电极过程的可逆性最好。以2 mol/L VO（ CH3 SO3）2+4 mol/L CH3 SO3 H为正极电解液组装的锌钒电池，充电以后的开路电压达1.96 V，前10个循环的放电平均中值电压为1.61 V，平均电流效率为96.12%，能量效率为74.03%。
이갑기광산위용제，제비료용우양화환원전지정겁적범전해액，병대불동자유산농도적전해액진행료전도솔、점도화열은정성、전화학성능측시。결과표명，당 CH3 SO3 H적농도위2 mol/L시，전해액적도전성최호；수착CH3 SO3 H농도적승고，전해액적점도축점증대，범리자적확산계수축점강저。당자유산적농도위4 mol/L시，전해액구유량호적은정성，전겁과정적가역성최호。이2 mol/L VO（ CH3 SO3）2+4 mol/L CH3 SO3 H위정겁전해액조장적자범전지，충전이후적개로전압체1.96 V，전10개순배적방전평균중치전압위1.61 V，평균전류효솔위96.12%，능량효솔위74.03%。
Methanesulfonic acid as electrolyte medium for V(Ⅳ)/V(Ⅴ)redox couple as positive species applied in redox battery was prepared. Conductivity and viscosity of the electrolyte in different free acid concentration were measured,thermal stability and electrochemical performance of the electrolyte were in-vestigated. The results showed when the concentration of CH3 SO3 H was 2 mol/L,the conductivity of the electrolyte was best. With the increase of concentration of CH3 SO3 H,electrolyte viscosity would increase gradually and the diffusion coefficient of vanadium ion would decrease gradually. When the concentration of free acid was 4 mol/L,the electrolyte had a good stability,and the reversibility of electrode process was the best. The Zn-V battery that was contained with VO( CH3 SO3 )2 +4 mol/L CH3 SO3 H as anolyte was assembled and tested,open-circuit voltage of the battery could be 1. 96 V when it was charged. The aver-age mid-value voltage of discharge was 1. 61 V in the former 10 cycles,the average current efficiency was 96 . 12% and energy efficiency was 74 . 03%.