TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The salts are lithium perchlorate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium hexafluorophosphate, lithium hexafluoroantimonate, lithium triflate salt, lithium pentafluorobenzensulfonate, lithium 2,2,3,3,4,4,5,5,5-nonafluoropentanoate, lithium tris(trifluoromethanesulfonyl) methane, lithium bisperfluoroethylsulfonyl imide, lithium bis(trifluoromethyl sulfonyl)imide, lithium tetrachloroaluminate, lithium tetrachlorogallate, lithium thiocyanate, lithium oxide, lithium triflate, lithium trifluoroacetate, lithium fluorosulfate (LiSO6F), lithium tetraphenylborate, chloroborane lithium, lithium tetraphenylborate, lithium bromide, lithium iodide, lithium chloride, imides, lithium-methide, lithium-imide and/or lithium alkyl fluorophosphates, an organoborate salt of formula (II) or (III), bis(bidentate)borate salt, preferably lithium bis-oxalato borate, a dihalo mono(bidentate) borate or lithium difluoro oxalatoborate. In formula (II):M+ = a metal ion comprising group I or group II elements;Y1, Y2 = CX(CR2)aCX-, CZZ1a(CR2)nCZZ1a, CX(CR2)aCZZ1a, -SO2(CR2)bSO2 or CO(R2)bSO2;X = O;X1 = =O or =NR1a;Z = (halo)alkyl, C=NR1a or CR1a3 or R;Z1a = not defined;V1 = (halo)alkyl, C=NR1a, CR1a3 or R1a;R1a = halo or H;R = H, (halo)alkyl, CN or halo;a = 0-4; andb = 1-4.In formula (III):M+ = a metal ion form group I or group II;Y3 = -CX(CR2)aCX, CZZ1a(CR2)aCZZ1a, CX(CR2)aCZZ1a, SO2(CR2)bSO2 or CO(CR2)bSO2;X = (=O) or =NR1a;Z = (halo)alkyl, C=NR1a, CR1a3, or R1a;Z1a = (halo)alkyl, C=NR1a, CR1a3 or R1a;R2a = halo;R1a = halo or H;R = H, (halo)alkyl, CN or halo;a = 0-4; andb = 1-4.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The first substituent is a (non)crosslinking side-chain. The carbonate moiety is a cyclic carbonate moiety. The electrolyte further comprises an organic solvent. The organic solvent comprises one or more cyclic or linear carbonates. The organic solvent is propylene carbonate, ethylene carbonate, butylene carbonate, vinylene carbonate, dimethyl carbonate, diethyl carbonate, ethylmethyl carbonate, dipropyl carbonate, dialkyl carbonates, 1,2-dimethoxyethane, methyl propyl carbonate, ethyl propyl carbonate, methyl formate, methyl acetate, ethyl propionate, gamma -butyrolactone, 1,2-ethoxyethane, ethoxymethoxyethane, tetrahydrofuran, 2-methyltetrahydrofuran, dimethylsulfoxide, 1,3-dioxolane, formamide, acetoamide, dimethylformamide, dioxolane, acetonitrile, propylnitrile, nitromethane, ethylmonoglyme,triester phosphate, trimethoxymethane, sulforane, methylsulforane, 1,3-diemthyl-2-imidazoline, 3-methyl-2-oxazolidinone, ethylether, 1,3-propanesultone, anisole or N-methylpyrrolidone. The second silane is of formula (SiR4-x-yR1axR2ay) (IV). The first silane is of formula (CH3-Si(CH3)2-O-(CH2-CH2O)n-CH3) (VIIID) (where n is not defined). The second siloxane is of formula (R5-Si(R1)(R3)-O-Si(R2)(R4)-R6) (V), (R6-Si(R5)(R6)-O-Si(R1)(R2)-O-Si(R3)(R4)-R7) (VI), (Z3Si-O-Si(R19)(R20)-O-SiZ3) (VII) or (Z3Si-O-Si(R21)(R22)-O-Si(R21)(R23)-O-SiZ3) (VIII), preferably tetrasiloxane, trisiloxane or disiloxane (preferred). The first siloxane is of formula (R12-(O-CH(R10)-CH2)x-O-R8-Si(R5)(R6)-O-Si(R1)(R2)-O-Si(R1)(R2)-Si(R3)(R4)-R7-O-(CH2-CH(R9)-O)y-R11) (IX), preferably tetrasiloxane, trisiloxane or disiloxane (preferred). The solvent comprises one or more additives, preferably o-phenylene carbonate, vinyl carbonate, vinyl ethylene carbonate, ethylene sulfite, propylene sulfite, 1,3-dimethyl butadiene, styrene carbonate, an aryl carbonate, vinyl pyrrole, vinyl piperazine, vinyl piperidine, vinyl pyridine or phenyl ethylene carbonate. The poly(alkylene oxide) moiety comprises an oxygen linked directly to a silicon in the one or more first siloxanes and/or the one or more first silanes; an oxygen linked directly to a silicon in the first silane. The one or more components in the solvent are disiloxane. The first siloxane and/or first silane are a separate compound from second siloxane and/or second silane. In formula (IV):R = alkyl, aryl or halo;R1ax = -R9-O-(CH2-CH(R10)-O)n-R11 (preferred) or -R14-O-(CH2-CH(R16)-O)n-R15-second silane;R2ay = a cyclic ring of formula (VIIIB);x, y = 0-4;4-x-y = number of R substituents, where the sum of x and y is at least 1;R9, R14, R15 = 0 or an organic spacer, where R9 and R14 are preferably 0;R10, R16 = H, alkyl or aryl;R11 = alkyl or aryl;R12 = an organic spacer;n = 1-15;p = 1 or 2; andsecond silane = another silane.In formula (V):R1-R4 = alkyl or aryl;R5 = -R9-O-(CH2-CH(R10)-O)n-R11, a cyclic ring (VIIIB) or -R14-O-(CH2-CH(R16)-O)n-R15-second siloxane;R6 = alkyl, aryl, -R17-O-(CH2-CH(R18)-O)q-R19 or a cyclic ring of formula (VIIE);R9, R14, R15, R17 = 0 or spacer;R10, R16, R18 = H, alkyl or aryl;R11, R19 = aryl or alkyl;R12, R20 = an organic spacer;p = 1 or 2;n, q = 1-12; andsecond siloxane = another siloxane.In formula (VI):R1, R2 = alkyl;R3-R6 = alkyl or aryl;R7 = -R9-O-(CH2-CH(R10)-O)n-R11 or a cyclic ring (VIIIB);R8 = R13-O-(CH2-CH(R14)-O)q-R15 or a cyclic ring of formula (VD);R9, R13 = 0 or a spacer;R10, R14 = H, alkyl or aryl;R11, R15 = alkyl or aryl;n, q = 1-12;p = 1 or 2; andR16 = an organic spacer.In formula (VII):R19 = alkyl or aryl;R20 = a cyclic ring of formula (VIa), -O-CH2-CH(R23)r-O-R24 or -R25-O-(CH2-CH(R27)-O)n-R26-second siloxane;R21 = an organic spacer;p = 1 or 2;r, n = 1-12;R25, R26 = 0 or a spacer;R27 = H, alkyl or aryl; andsecond siloxane = another siloxane.In formula (VIII):R20, R21 = alkyl or aryl;R22 = -R24-O-(CH2-CH(R25)-O)p-R26;R23 = -O-(CH2-CH(R28)-O)q-R29 or a cyclic moiety of formula (IVC);R24 = an organic spacer or 0;R25, R28 = H, alkyl or aryl;R25, R29 = alkyl or aryl;p, q = 1-12;R30 = an organic spacer; andr = 1 or 2.In formula (IX):R1, R2 = alkyl;R3-R6, R11, R12 = alkyl or aryl;R7, R8 = 0 or a spacer;R9, R10 = H, alkyl or aryl;R10 = H, alkyl or aryl; andx, y = 1-12.