離子液體是液體中的鹽。在某些情況下，該術(shù)語(yǔ)僅限于熔點(diǎn)低于某一任意溫度的鹽，如100°C(212°F)。普通液體如水和汽油主要由電中性分子組成，而離子液體主要由離子和短壽命的離子對(duì)組成。這些物質(zhì)被稱(chēng)為液體電解質(zhì)、離子熔體、離子液體、熔鹽、液體鹽或離子玻璃。它們被稱(chēng)為“未來(lái)的溶劑”和“設(shè)計(jì)溶劑”。離子液體被描述為具有許多潛在的應(yīng)用。它們是強(qiáng)大的溶劑和導(dǎo)電流體（電解質(zhì)）。在近環(huán)境溫度下為液體的鹽對(duì)電池應(yīng)用很重要，并且由于其極低的蒸汽壓力而被認(rèn)為是密封劑。
1,3-Dimethylimidazolium Dimethyl Phosphate
1-Butyl-2,3-dimethylimidazolium Trifluoromethanesulfonate
N-Butyl-N-methylpyrrolidinium bromide
N-butyl-N-methyl-piperidinium bromide
3-Hexadecyl-1-methyl-1H-imidazol-3-ium bromide
1-Ethylpyridin-1-ium bromide
2-hydroxy-N,N,N-trimethylethanaminium chloride
Tetrabutylammonium hydrogensulfate
Tetraethylammonium chloride
1-Butyl-3-methylpyridin-1-ium hexafluorophosphate(V)
1-Ethyl-3-methyl-1H-imidazol-3-ium thiocyanate
Benzyl triethylammonium chloride
1-propenyl-3-methylimidazolium bromide
1-Allyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
1-Decyl-3-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide
1-(2’-hydroxylethyl)-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
1-(2’-hydroxylethyl)-3-methylimidazolium chloride
1,3-Dimethylimidazolium Bis(trifluoromethanesulfonyl)imide
1,3-dimethylimidazolium hexafluorophosphate
3-Allyl-1-methyl-1H-imidazol-3-ium thiocyanate
1-Allyl-3-methylimidazolium tetrafluoroborate
1-butyl-3-methylimidazolium dicyanamide
1-butyl-3-methylimidazolium thiocyanate
1-carboxymethyl-3-methylimidazolium chloride
1-dodecyl-3-methylimidazolium chloride
1-ethyl-3-methylimidazolium trifluoroacetate
1-hexadecyl-3-methylimidazolium hexafluorophosphate
1-Propyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
1-tetradecyl-3-methylimidazolium bromide
1-vinyl-3-ethylimidazolium hexafluorophosphate
