TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The electrolyte (E1) further comprises: a lithium salt selected from: Li(CF3CO2); Li(C2F5CO2); Li(ClO4); Li(BF4); Li(AsF6); Li(PF6); Li(PF2(C2O4)2); Li(PF4C2O4); Li(CF3SO3); Li(N(CF3SO2)2); Li(C(CF3SO2)3); Li(N(SO2C2F5)2); lithium alkyl fluorophosphates; Li(B(C2O4)2); Li(BF2C2O4); Li2(B12Z12-jHj); or Li2(B10Z10-j'Hj'). The concentration of the lithium salt present in the ionic liquid is 0.01 M to 1.5 M. The electrolyte (E1) further comprises: an aprotic solvent; an aprotic gel polymer carrier/solvent; and an electrode stabilizing additive.Z=halo;j=0-12;j'=1-10. Preferred Definitions:    R=-(CH2)-(OCH2CH2)n-(OCH3), -CH2Si(CH3)2(OSi(CH3)2)mOSi(CH3)3, or -(CH2)mSO2CH3;    R1-R3=1-6C alkyl, hydroxyalkyl, or haloalkyl;    R4-R6=H;    X-=(CF3CO2)-, (C2F5CO2)-, (ClO4)-, (BF4)-, (AsF6)-, (PF6)-, (PF2(C2O4)2)-, (PF4C2O4)-, (CF3SO3)-, (N(CF3SO2)2)-, (C(CF3SO2)3)-, (N(SO2C2F5)2)-, alkyl fluorophosphates, (B(C2O4)2)-, (BF2C2O4)-, (B12Y'12-kHk)2-, or (B10Y'10-k'Hk')2-;    Y'=halo;    k=0-12;    k'=1-10.    SPECIFIC COMPOUNDS - 104 Compounds are specified as ionic liquid salts (I)-(VI); e.g. triethyl-(methylenepentamethyldisiloxane)phosphonium bis(trifluoromethylsulfonyl)imide (VII); 1-ethyl-3-((2-methoxyethoxy)methyl)-1H-imidazol-3-ium bis(trifluoromethanesulfonyl)imide; 1-ethyl-3-((2-(2-methoxyethoxy)ethoxy)methyl)-1H-imidazol-3-ium bis(oxalato)borate; 1-ethyl-3-((2-oxo-1,3-dioxolan-4-yl)ethyl)-1H-imidazol-3-ium hexafluorophosphate; and triethyl-(methyleneoctamethyltetrasiloxane)phosphonium hexafluorophosphate.    EXAMPLE - A solution of triethyl-(methylenepentamethyldisiloxane)phosphonium bis(trifluoromethylsulfonyl)imide (48.8 g) in water (300 ml) was treated with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) (44.6 g). The solution was allowed to stir at room temperature for 12 hours. A layer formed at the bottom was dissolved in CH2Cl2, and washed with deionized water until no residual iodide in the rinse was be detected. The CH2Cl2 solution was stirred with carbon black and Al2O3 for 2 hours and filtered. The product was dried under high vacuum to obtain triethyl-(methylenepentamethyldisiloxane)phosphonium bis(trifluoromethylsulfonyl)imide (VII) (50 g). The ionic liquid compound (VII) was tested for Li/mesocarbon microbeads (MCMB) half-cell charge discharge profiles using 0.8M LiTFSI in the compound (VII). The first cycle charging curve showed that a solid electrolyte interphase formation (SEI) starting at 0.8 V. The second cycle and subsequent cycles showed regular lithium interaction and de-intercalation on the MCMB electrode. The introduction of the functional ionic liquid had (SEI) formation capability and the compound (VII) was completely compatible with graphite based material.