Redox-flow batteries employ dissolved active materials separated by a semi-permeable membrane to store energy. Cell life and capacity are maximized when active materials can be sequestered in their respective cell compartments at high concentrations. Here I will demonstrate the design of active materials whose infinite miscibility with many non-aqueous electrolytes allow for high volumetric capacity. The macromolecular design of these active materials makes them sufficiently large to be excluded by a microporous membrane, while maintaining substantially faster electron transfer kinetics than competing polymeric and colloidal active materials.

All-organic redox-active materials designed for high volumetric capacity and low crossover in redox-flow batteries

256th National Meeting (2018)

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