复合添加剂对钒液流电池正极电解液的影响

Effect of compound additives on cathode electrolyte for vanadium flow battery

分别采用硫酸钠、乙醇以及将二者混合的复合物质作为钒电池电解液的添加剂,采用循环伏安、充放电、紫外可见光测试、热稳定性测试等方法研究了不同添加剂对电解液的影响,结果表明,复合添加剂(硫酸钠和乙醇的混合物)可以有效改善钒电池正极电解液的电化学活性以及热稳定性。

Na2O4, CH3CH2OH and the mixture of them were used as the electrolyte additives of vanadium flow battery respectively. The effects of the additives on the electrolyte were studied by cyclic voltammetry （CV）, charge-discharge technique and thermal performance test. The results indicate that the electrochemical activity and thermal stability of the electrolyte are improved by adding the mixture of Na2SO4 and CH3CH2OH.