I'm working on Membrane-less Redox Flow Batteries (MRFBs). MRFBs offer several advantages over conventional RFBs, including lower cost and complexity, higher power density, and improved efficiency due to reduced mass transport losses and lower resistance in interphace. However, MRFBs also face several challenges, including the need for careful electrolyte selection and management to maintain stable performance and prevent crossover, and the potential for unwanted side reactions at the electrode surfaces.