Abstract
Aqueous organic redox flow batteries (AORFBs) have recently gained significant attention as a potential candidate for grid-scale electrical energy storage. Successful implementation of this technol...
Highlights
The cost of renewable solar and wind electricity has dropped so much that the greatest barrier to their widespread adoption is their intrinsic intermittency
Capacity fade may have both temporal or electrochemical cycling contributions, with the former dominating the lifetimes of the organic molecules that have been carefully studied to date.[27]
The cell lost 5.3% of its capacity, which corresponds to 0.78% loss per day. This rate is almost identical to the 0.74%/day loss rate when cycled at 100 mA/cm[2], demonstrating that bislawsone can be cycled at high current density under alkaline conditions without compromising its stability
Summary
The cost of renewable solar and wind electricity has dropped so much that the greatest barrier to their widespread adoption is their intrinsic intermittency. The diffusion coefficient (D) of bislawsone was determined by rotating disk electrode measurement and calculated according to the Levich plot of limiting current versus square root of rotation rate to be 4.54×10-6 cm2/s (Figure 1D, 1E), which is in line with those of most small organic molecules. To confirm that all four electrons in bislawsone can be accessed reversibly, the cell was cycled at different current densities ranging from 20 mA/cm[2] to 250 mA/cm[2] (Figure 2A).
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