Recent Developments in Materials and Chemistries for Redox
To enable high-voltage flow batteries, the major focus is to design redox-active materials that can enable an extremely low or high redox potential in organic solvents as the
Different aspects of materials and components in redox flow batteries should be considered, including redox-active materials (redox potential, solubility, chemical stability), (2,3) ion-conductive membranes (ion conductivity, selectivity), (4) electrodes (carbon materials, microstructure, catalytic effect), and flow field design.
The second scenario analysis focuses on the membrane materials used for the flow batteries. Although Nafion® is commonly used as the membrane material in flow batteries, various alternative membrane materials have also been developed for battery use.
To enable high-voltage flow batteries, the major focus is to design redox-active materials that can enable an extremely low or high redox potential in organic solvents as the anolyte or catholyte, respectively.
The fundamental difference between conventional and flow batteries is that energy is stored in the electrode material in conventional batteries, while in flow batteries it is stored in the electrolyte.
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