We finally discuss the possible mechanisms through which anolyte crossover may exacerbate ferricyanide losses. First, it is important to note that ferricyanide is known to degrade in alkaline conditions. The rate of this degradation is greater at higher electrolyte pH and in the presence of high frequency visible light and UV light. This is because light at these wavelengths promote the loss of cyanide ligands, which are replaced by water and then hydroxide ions. In this process, ferricyanide is irreversibly converted to a mixture of insoluble iron oxide and hydroxide precipitates over time. However, the exact mechanisms for capacity losses in ferrocyanide-based batteries are still debated; recently defended the use to ferrocyanide electrolytes in AORFBs, claiming they are stable in ambient light. Their argument is that the loss of ferricyanide is due to a chemical reduction to ferrocyanide, driven by a coupled chemical oxygen evolution reaction (OER). In this case, ferricyanide can be regenerated, which