“…Membranes have always been at the heart of discussions on energy storage and conversion devices such as batteries and fuel cells (Park et al, 2016;Lu et al, 2017;Jiao et al, 2021). This is because they provide the functionality to isolate the cathode and anode as well as to conduct charge-carriers to complete the internal circuit (Guiver, 2022). The membranes must cater to the needs of high chemical and mechanical stability, high selectivity and conductivity, and low cost (Lee et al, 2014;Xiong et al, 2021;Li et al, 2022), since they play a decisive role in a device's performance and reliability.…”