Vanadium acetylacetonate, or V(acac)₃, provides a model chemistry for investigating the performance of nonaqueous disproportionation flow batteries. A flow reactor was developed to implement studies of efficiency, energy capacity, and power capability with respect to electrolyte flow rate and current density. Reactors incorporating a porous separator allowed V(acac)₃ to be cycled without appreciable capacity fade at current densities up to 100 mAcm⁻². Experiments at the lowest flow rate, 12.5 mLmin^–1, revealed limitations imposed by residence time within the reactor, which manifested as high charging overpotentials. These overpotentials vanish above 25 mLmin^–1. A higher flow rate of 50 mLmin^–1 yielded performance similar to cells at 25 mLmin^–1, but could improve performance at current densities above 100 mAcm⁻². Extrapolation of power density's dependence on current suggests a maximum power of 0.22 Wcm⁻² for cells run at 206 mAcm⁻². Energy efficiency passes through a maximum of 71% at 40 mAcm⁻² and the corresponding energy density suggests that the chemistry can, in principle, deliver above 13 WhL⁻¹ in acetonitrile solutions and above 24 WhL⁻¹ in mixed-solvent solutions with higher V(acac)₃ solubility. A V(acac)₃ cell run at 40 mAcm⁻² is shown to exhibit stable capacity and performance for more than 150 cycles.

乙酰丙酮钒或V（acac）₃提供了用于研究非水歧化液流电池性能的化学模型。开发了流动反应器以进行关于电解质流速和电流密度的效率，能量容量和功率容量的研究。结合有多孔隔板的反应器允许V（acac）₃循环，而在电流密度高达100 mAcm ^-2时，容量没有明显下降。以最低流速12.5 mLmin ^{–1进行的}实验表明，反应器内停留时间强加了限制，表现为高充电超电势。这些过电位在25 mLmin ^–1以上时消失。50 mLmin ^–1的更高流速得到在25 mLmin类似于细胞性能^-1，但可以提高在高于100 MACM电流密度性能^-2。功率密度对电流的依赖性外推表明，对于以206 mAcm ^-2运行的电池，最大功率为0.22 Wcm ^-2。在40 mAcm ^-2时，能量效率最高可达到71％，并且相应的能量密度表明，该化学原理在乙腈溶液中原则上可提供13 WhL ^-1以上的溶液，而在更高浓度的混合溶剂溶液中则可提供24 WhL ^-1以上的溶液。 V（acac）₃溶解度。AV（acac）₃ 电池在40 mAcm ^-2下运行 被证明在超过150个循环中表现出稳定的容量和性能。