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 abstractthree types of chlorideconducting membranes based on polyvinyl chloride , commercial gelatin , and polyvinyldifluoridehexafluoropolymer are introduced in this report . 
 the polymers are mixed with chloridecontaining salts , such as tetrabutylammonium chloride , and cast to form membranes . 
 we studied the structural properties , thermal stability , and electrochemical response of the membranes to understand chloride migration and transport . 
 finally , the membranes are tested in a prototype solidstate chlorideion battery setup . 
 the feasibility of the membranes for their potential use in anion batteries is discussed . 
Supporting information