Polymer ionic liquids membranes (PILIMs) have been used in microbial fuel cells (MFCs).
MFCs with PILIMs yield suitable power to be used as proton exchange membranes (PEMs).
MFCs with PILIMs yield higher COD reduction than anaerobic digester.
PILIMs could supersede conventional PEMS such us Nafion®.
PILIMs could improve the efficiency of MFC and the reduction of its capital cost.