This paper presents the performance of a dual-purpose Zinc|ferricyanide desalination battery for simultaneous desalination and energy storage operations. The zinc|ferricyanide battery consists of an anode chamber with a zinc electrode immersed in ZnCl₂(aq) electrolyte, a cathode chamber with a graphite electrode and electrolyte solution of K₃[Fe(CN)₆](aq) and K₄[Fe(CN)₆](aq), as well as a middle chamber with saline water to be desalinated. These chambers are separated by anionic and cationic exchange membranes, respectively. A series of experiments were conducted to study the impact of charging and discharging cycles on desalination-salination rates, power storage, and discharge rates at different charging capacities. The electrochemical cell was also characterized in terms of power density and desalination performance under various conditions. Results from this study confirm that the electrochemical battery desalination method has the potential to store energy and the charging-discharging cycles of the battery can provide a mechanism for desalination, which is achieved free of energy consumption. A desalination rate of 30.3% can be achieved during a 12-hr discharge period, which decreased the salinity levels from 41.2 g/L to 28.7 g/L. This result indicates that the process is also suitable for pre-desalination or pretreatment of high saline waters, which is a major challenge for current membrane processes.

本文介绍了同时进行脱盐和储能操作的两用铁氰化锌脱盐电池的性能。氰化锌电池由具有浸入ZnCl ₂（aq）电解质中的锌电极的阳极室，具有石墨电极和K ₃ [Fe（CN）₆ ]（aq）和K ₄ [电解质溶液]的阴极室组成。铁（CN）₆]（aq），以及要用盐水淡化的中间室。这些室分别由阴离子和阳离子交换膜隔开。进行了一系列实验，研究了充电和放电循环对不同充电容量下的脱盐-盐化速率，功率存储和放电速率的影响。还根据各种条件下的功率密度和脱盐性能表征了电化学电池。这项研究的结果证实，电化学电池的脱盐方法具有储存能量的潜力，并且电池的充放电循环可以提供一种实现脱盐的机制，从而实现无能耗的目的。在12小时的放电期间，脱盐率可达到30.3％，盐度水平从41.2 g / L降至28.7 g / L。该结果表明该方法也适用于高盐分水的预脱盐或预处理，这是当前膜工艺的主要挑战。