Electrolyte system for use in an electrochemical component, comprising at least one tetrazolide anion A with a substituent R in the 5-position according to the following formula and at least one cation, characterised in that the substituent R is selected from the group: a) R = fluorine group (-F), b) R = trifluoromethyl group (-CF 3), c) R = alkyl radical (R f), which is completely or partly fluorinated with C1 to C8, in which the alkyl radical may be linear or branched, d) R = a sulfonyl group substituted by an electron-withdrawing substituent, e) R = a carboxyl group substituted by an electron-withdrawing substituent, f) R = an ether group substituted by an electron-withdrawing substituent, g) R = cyanosulfonyl group (-SO 2 CN), and that the electrolyte system comprises at least one cation K IL from the group: a) K IL = ammonium cations with various radicals (NRR 1 R 2 R 3), with R, R 1, R 2, R 3 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3,4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, b) K IL = imidazolium cations with various radicals in the 1-, 2-, 3-, 4- and 5-position (RR 1 R 2 R 3 R 4 lm), with R, R 1, R 2, R 3, R 4 = H, -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3, R 4 may be the same or different, c) K IL = pyrrolidinium cations with various radicals in the 1-position (RR 1 Py), with R, R 1 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1 may be the same or different, d) K IL = piperidinium cations with various radicals in the 1-position (RR 1 Pip), with R, R 1 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R and R 1 may be the same or different, e) K IL = pyridinium cations with various radicals in the 1-position (RPyri), with R = -(CH 2) n -CH 3 and n = 0,1, 2, 3, 4, 5, 6, 7, f) K IL = pyrazolium cations with various radicals in the 1-, 2-, 3-, 4- and 5-position (RR 1 R 2 R 3 R 4 Pyr), with R, R 1, R 2, R 3, R 4 = H, -(CH 2) n -CH 3 and n = 0,1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3, R 4 may be the same or different, g) K IL = phosphonium cations with various radicals (PRR 1 R 2 R 3), with R, R 1, R 2, R 3 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, h) K IL = sulfonium cations with various radicals (SRR 1 R 2), with R, R 1, R 2 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, or at least one cation K S from the group: a) K S = H +, b) K S = Li +, c) K S = Na +, d) K S = K +, e) K S = Mg 2+, f) K S = Ca 2+, g) K S = Ni 2+, h) K S = Pb 2+, i) K S = Fe 2+/3+, j) K S = V 2+/3+/4+/5+. a) R = fluorine group (-F), b) R = trifluoromethyl group (-CF 3), c) R = alkyl radical (R f), which is completely or partly fluorinated with C1 to C8, in which the alkyl radical may be linear or branched, d) R = a sulfonyl group substituted by an electron-withdrawing substituent, e) R = a carboxyl group substituted by an electron-withdrawing substituent, f) R = an ether group substituted by an electron-withdrawing substituent, g) R = cyanosulfonyl group (-SO 2 CN), a) K IL = ammonium cations with various radicals (NRR 1 R 2 R 3), with R, R 1, R 2, R 3 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3,4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, b) K IL = imidazolium cations with various radicals in the 1-, 2-, 3-, 4- and 5-position (RR 1 R 2 R 3 R 4 lm), with R, R 1, R 2, R 3, R 4 = H, -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3, R 4 may be the same or different, c) K IL = pyrrolidinium cations with various radicals in the 1-position (RR 1 Py), with R, R 1 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1 may be the same or different, d) K IL = piperidinium cations with various radicals in the 1-position (RR 1 Pip), with R, R 1 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R and R 1 may be the same or different, e) K IL = pyridinium cations with various radicals in the 1-position (RPyri), with R = -(CH 2) n -CH 3 and n = 0,1, 2, 3, 4, 5, 6, 7, f) K IL = pyrazolium cations with various radicals in the 1-, 2-, 3-, 4- and 5-position (RR 1 R 2 R 3 R 4 Pyr), with R, R 1, R 2, R 3, R 4 = H, -(CH 2) n -CH 3 and n = 0,1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3, R 4 may be the same or different, g) K IL = phosphonium cations with various radicals (PRR 1 R 2 R 3), with R, R 1, R 2, R 3 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, h) K IL = sulfonium cations with various radicals (SRR 1 R 2), with R, R 1, R 2 = -(CH 2) n -CH 3 and n = 0, 1, 2, 3, 4, 5, 6, 7, in which the radicals R, R 1, R 2, R 3 may be the same or different, a) K S = H +, b) K S = Li +, c) K S = Na +, d) K S = K +, e) K S = Mg 2+, f) K S = Ca 2+, g) K S = Ni 2+, h) K S = Pb 2+, i) K S = Fe 2+/3+, j) K S = V 2+/3+/4+/5+.