ELECTROLYTE, ELECTROLYTE MEMBRANE, MEMBRANE/ELECTRODE ASSEMBLY AND FUEL CELL POWER SOURCE

摘要

Sulfoalkyl groups or sulfonic groups as proton-conductive groups, and a phosphoalkyl group as oxidation-resistance imparting groups are introduced into a hydrocarbon electrolyte membrane. A fuel cell is provided wherein the membrane is insoluble in an aqueous methanol solution as a fuel and can stably generate electricity over extended periods of time. Sulfoalkyl groups or sulfonic groups as proton-conductive groups, and phosphoalkyl groups as oxidation-resistance imparting groups are introduced into a hydrocarbon electrolyte, and the resulting hydrocarbon electrolyte is used as an electrolyte of an electrode. A direct-methanol fuel cell (DMFC) is provided wherein the fuel cell is inexpensive and can operate stably over extended periods of time.