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Study on an novel zinc/vanadium redox flow battery

机译:新型锌钒还原液流电池的研究

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摘要

The novel Zinc/vanadium redox flow battery (ZVB) is proposed in the paper. The ZVB which employs the VO2 +/VO2* redox couple in the positive half-cell and the Zn/Zn2+ redox couple in the negative half-cell. The equilibrium potentials of positive and negative reactions are 1.0 V and -0.76 V versus the reversible hydrogen electrode (RHE), respectively. Therefore, an open circuit voltage of 1.76 V can be obtained. The performance of the batteries is carried out by using constant current charge / discharge technique. Typically, the coulombic efficiency of above 96% and the energy efficiency of about 70% were obtained at the current density of 20 mA /cm2.
机译:本文提出了新颖的锌/钒氧化还原液流电池(ZVB)。 ZVB在正极半电池中使用VO2 + / VO2 *氧化还原对,在负极半电池中使用Zn / Zn2 +氧化还原对。正反应和负反应的平衡电位相对于可逆氢电极(RHE)分别为1.0 V和-0.76V。因此,可以获得1.76V的开路电压。电池的性能通过使用恒定电流充电/放电技术来实现。通常,在20 mA / cm2的电流密度下,库仑效率高于96%,能量效率约为70%。

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