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Aluminum/Bromate and Aluminum/Iodate Mechanically Rechargeable Batteriesстатья
- Авторы: Modestov Alexander, Andreev Vladimir, Antipov Anatoliy
- Журнал: Batteries
- Том: 8
- Номер: 12
- Год издания: 2022
- Издательство: MDPI Publishing
- Местоположение издательства: Basel, Switzerland, Switzerland
- Номер статьи: 270
- DOI: 10.3390/batteries8120270
- Аннотация: The ever-increasing characteristics of microcomputers, sensors, actuators, and communication systems require more powerful and more compact autonomous power sources. Al/bromate and Al/iodate flow batteries are proposed as new power supply units for use in oxygen-deficient environments. The batteries employ a mechanically rechargeable aluminum anode flooded with aqueous salt electrolytes or seawater, a cation-exchange membrane, and a carbonaceous porous cathode, where acidified alkali metal bromate, or iodate, is reduced in a six-electron process. The theoretical energy density of an Al/bromate flow cell per reactants is 0.65 kWh kg−1. Seawater is assumed as an electrolyte for the anode compartment. Using a H2/iodate flow cell, it is shown that iodate–iodine–iodide electrochemical transformations can be realized in both directions in acidic media at carbonaceous electrodes. At 30 °C, the area-specific power of the single cells of the Al/bromate and Al/iodate flow batteries reaches 0.26 W cm−2 and 0.075 W cm−2, respectively.
- Добавил в систему: Андреев Владимир Николаевич