TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The conducting salt is lithium conducting salt (which is lithium hexafluorophosphate, lithium bis(trifluoromethanesulfonylimide), lithium bis(trifluoroethanesulfonylimide), lithium tris(pentafluoroethyl)trifluorophosphate, lithium tris(nonafluorobutyl)trifluorophosphate, lithium-bis(oxalate)borate or lithium-difluoro-bis(oxalate)borate), or a compound comprising tetraethylammonium tetrafluoroborate, tetraethylammonium hexafluorophosphate, triethyl-methyl-ammonium tetrafluoroborate, triethyl-methyl-ammonium hexafluorophosphate, tetraethylammonium bis(trifluoromethylsulfonyl)azanide, triethyl-methyl-ammonium bis(trifluoromethylsulfonyl)azanide, tetraethylammonium tris(pentafluoroethyl)trifluorophosphate, or triethyl-methyl-ammonium tris(pentafluoroethyl)trifluorophosphate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of (I) comprises: preparing a heterocyclic cation (K1+) with alkyl-, carboxylate-, carbonate- or cyano-containing side chain as an onium-chloride or -bromide from the corresponding amine, phosphine, halocarboxylate, halocarbonate, halo-alkylnitrile or alkylhalo according to conventional wet chemical method; and reacting these cationic onium chloride or bromide with the corresponding anionic potassium- and/or sodium-fluoroalkyl-phosphates, potassium- and/or sodium-bis (fluoroalkyl)-phosphinate, potassium- and/or sodium-fluoroalkylphosphonate, fluoroalkylphosphoric acid, bis(fluoroalkyl)phosphinic acid, fluoroalkyl-phosphonic acid, alkyl- preferably methyl-bis(fluoroalkyl)phosphinate, lithium-imide or -methide, trifluoromethanesulfonic acid, potassium or lithium-trifluoroacetate, -triflate or alkyl-triflate, trimethylsilyl-triflate, trifluoromethanesulfonic anhydride or trifluoroacetic anhydride, and/or lithium- or potassium-borate, -phosphate or -aluminate in aqueous and/or alcoholic medium or optionally in organic solvent. Preferred Components: The aprotic solvent is organic open-chain or cyclic carbonates, carboxylic esters, nitriles, ethers and/or lactones. SPECIFIC COMPOUNDS - 188 Compounds (I) are disclosed e.g. allyl-triethyl-ammonium tris(pentafluoroethyl)trifluorophosphate of formula (((N(C2H5)-3(CH2-CH=CH2)))(F3P(C2F5)3)) (Ia), 1-allyl-1-methyl-pyrrolidinium tris(pentafluoroethyl)trifluorophosphate, ethoxycarbonylmethyl-triethyl-ammonium tris(pentafluoroethyl)trifluorophosphate, ethoxycarbonylmethyl-triethyl-ammonium tris(nonafluorobutyl)trifluorophosphate, and allyl-triethyl-ammonium di-trifluoroacetato oxalato borate.    EXAMPLE - To triethylamine (1 mole), 3-chloro-propene (1.1 mole) was added drop-wise and the temperature was maintained at 30-35 degrees C. The reaction mixture was stirred for 3-48 hours at 40-50 degrees C, and the obtained solid was diluted with dichloromethane or acetonitrile. The excess 3-chloro-propene and solvent was distilled off in vacuum at 2x 10-3 mbar to give allyl-triethyl-ammonium chloride (A). (A) (1 mole) and potassium tris(pentafluoroethyl)trifluorophosphate (1-1.1 mole) were added to a flask. The reaction mixture was heated to 100 degrees C for 1-20 hours under stirring and emerging methyl chloride and excess of potassium tris(pentafluoroethyl)trifluorophosphate were removed under vacuum to give allyl-triethyl-ammonium tris(pentafluoroethyl)trifluorophosphate.