TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The anion comprises dihydrogenphosphate, bis(trifluoromethylsulfonyl)imide, tris(pentafluoroethyl)triphosphate, bis-(trifluoromethylsulfonyl)amine ion ((N(SO2CF3)2)-) (all preferred), orthophosphate ion or phosphate ion ((HPO4)2-), as counter ion.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: (A) further comprises N-perfluoroalkyl-substituted imidazolyl-cation, where alkyl is a long chain carbon residue with 6-12C atoms, preferably N-perfluorooctyl substituted imidazolyl-cation. Preferred Process: In the process, imidazole in a solution of sodium hydroxide and ethanol is reacted with the corresponding perfluoroalkylbromide or -iodide to give N- or H-perfluoroalkylylimidazole and subsequently the corresponding acid is added to give the ionic salt.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The monomer of the polymer- or copolymer cation is derived from allylamine-derivative, 1-allylimidazole, 4-vinylpyridine, allylamine- and sulfonic acid-derivative, 1-allylimidazolium-3-(betan-4-sulfonate) or 3-vinylimidazolium-1-(betan-4-sulfonate), preferably from poly-(1-allyl-3-(betan-4-sulfonic acid)-imidazolium-bis(trifluoromethylsulfonyl)imide), poly-(1-allyl-imidazolium-dihydrogenphosphate), poly-(4-vinylpyridinium-dihydrogenphosphate), poly-(allyl-ammonium-dihydrogenphosphate), poly-(allyl-ammonium-bis(trifluoromethanosulfone)imide), poly-(1-betan-4-sulfonic acid-3-vinyl-imidazolium-bis(trifluoromethylsulfonyl)imide), poly(oleylamine), poly(diallylamine) or co-poly(allylamine-diallylamine). The membrane from the polymer electrolyte groups preferably comprises Nafion (RTM: Sulfonated tetrafluoroethylene copolymer) or polybenzimidazole/phosphoric acid. Preferred Process: The allyl- or vinyl monomer is reacted with the corresponding acid to give an ionic salt, and subsequently polymerized. The fuel cell membrane is obtained by impregnating a porous membrane matrix with the ionic liquid in an organic solvent and subsequently evaporating the solvent, or from (A) or its solution, preferably in a casting procedure. The electrode comprises (A) as a binder or the electrode is coated on the catalyst side with (A), the electrolyte is formed in vacuum, and the membrane is also impregnated with a conventional protonic acid, preferably phosphoric acid. The exterior of the polymer electrolyte membrane is coated with (A) to influence the water supply or the liquid electrolyte retention or to the reduction of direct methanol fuel cell permeability. EXAMPLE - The typical composition comprised of: 1-perfluorooctylimidazole (18 g) and bistrifluoromethane sulfonimide (10.4 g).