Autonomous and portable electronic devices require cheap energy storage units of ever-increasing power and energy densities. Zinc/halogenate flow battery is proposed as a new type of reserve or emergency power supply unit. The battery uses a mechanically rechargeable zinc anode in contact with neutral aqueous salt electrolyte, cation-exchange membrane, and a carbonaceous flow through cathode, at which aqueous acidified halogenate is reduced to halide in a six-electron process. A new multielectron oxidizer, aqueous iodate, that can be used in other electrochemical power sources, is introduced. It is shown that iodate can be readily reduced in acidic media at cheap carbonaceous electrodes. Electrochemical experiments with stationary and rotating disk glassy carbon electrodes reveal that in acidic aqueous electrolytes reduction of iodate can be as fast as earlier studied reduction of bromate. Theoretical energy densities per reactants of Zn/bromate and Zn/iodate batteries are 1.2 and 1.45 kWh L⁻¹, respectively. Area-specific power of the single cells of these batteries reaches 0.57 W cm⁻² at 50 °C.

中文翻译：

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新型水性锌卤化物液流电池作为锌空气燃料电池的后代，用于缺氧环境

自主和便携式电子设备需要具有不断增加的功率和能量密度的廉价能量存储单元。锌/卤​​酸盐液流电池被提议作为一种新型的备用或应急电源装置。该电池使用机械可充电锌阳极与中性盐电解质水溶液、阳离子交换膜和碳质流过阴极接触，在六电子过程中，酸化卤化物水溶液被还原为卤化物。介绍了一种新的多电子氧化剂，碘酸盐水溶液，可用于其他电化学电源。结果表明，碘酸盐可以在廉价的碳质电极上在酸性介质中轻松还原。使用固定和旋转圆盘玻璃碳电极的电化学实验表明，在酸性水性电解质中，碘酸盐的还原速度与早期研究的溴酸盐的还原速度一样快。锌/溴酸盐和锌/碘酸盐电池每个反应物的理论能量密度分别为 1.2 和 1.45 kWh L^-1，分别。这些电池的单体电池的面积比功率在 50°C 时达到 0.57 W cm ^-2。