The unique architecture of redox flow batteries enables energy and power to be decoupled and scaled up more easily than conventional batteries. With the objectives of achieving the cost target (USD$<100 (kW h)⁻¹) and superior performances, significant developments of redox and hybrid flow batteries have been made using various organic and inorganic redox couples in aqueous and nonaqueous electrolytes. To further improve the energy and power densities, desirable properties of these electrolytes are essential. In this article, comparisons and latest advances of these electrolytes in terms of stabilities, redox potentials, solubilities, viscosities, conductivities, opportunities, and economic prospects are discussed.

氧化还原液流电池的独特架构使能量和功率比传统电池更容易解耦和放大。为了实现成本目标（USD$<100 (kW h) ^-1）和卓越的性能，已在水性和非水性电解质中使用各种有机和无机氧化还原对进行氧化还原和混合液流电池的重大开发。为了进一步提高能量和功率密度，这些电解质的理想特性是必不可少的。在本文中，讨论了这些电解质在稳定性、氧化还原电位、溶解度、粘度、电导率、机会和经济前景方面的比较和最新进展。