TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The lithium salt is at least one of lithium hexaflourophosphate, lithium perchlorate, lithium tetrafluoroborate, lithium hexafluoro arsenide, lithium trifluoromethane sulfonate or trifluoromethanesulfonato-lithium(I) (Li((CF3SO3)2N)).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: (I) contains 0-30 wt.% of an additional solvent. The battery electrolyte solution contains no more than 5 wt.% of ethylene carbonate, propylene carbonate and/or a dialkyl carbonate. (I) further contains 0.5-10 wt.% of vinylene carbonate or 4-vinyl-1,3-dioxolan-2-one based on the combined weight of components (b) and (c). (I) further comprises at least one other additive comprising a cathode protection agent, a lithium salt stabilizer, a lithium deposition improving agent, an ionic solvation enhancer, a corrosion inhibitor, a wetting agent and a viscosity reducing agent. Preferred Components: The component (b) includes at least one 2-alkoxyethyl acetate, 2-alkoxy-1-alkylethyl acetate or 2-alkoxy-2-alkylethyl acetates having up to 12C, where: the alkoxy group contains 1-7C, preferably 1C or 2C and may be partially or completely fluorinated; and the alkyl group contains 1-7C, preferably 1C or 2C carbon atoms and may be partially or completely fluorinated, in an amount to dissolve the lithium salt. The component (b) is: 2-methoxyethyl acetate, 2-ethoxyethyl acetate, 2-methoxy-1-methylethyl acetate, 2-methoxy-2-methylethyl acetate, 2-ethoxy-1-methylethyl acetate and/or 2-ethoxy-2-methylethyl acetate; 2-methoxyethyl propionate, 2-ethyoxyethyl propionate, 2-methoxy-1-methylethyl propionate, 2-ethoxy-1-methylethyl propionate, 2-methoxy-2-methylethyl propionate, 2-ethoxy-2-methylethyl propionate, 2-methoxy-1-methylethyl acetate, 2-ethoxy-lmethylethyl acetate, 2-methoxy-2-methylethyl acetate, 2-ethoxy-2-methylethyl acetate, 2-methoxy-1-methylethyl acetate, 2-ethoxy-1-methylethyl acetate, 2-methoxy-2-methylethyl acetate and/or 2-ethoxy-2-methylethylacetate; or methyl formate, ethyl formate, propyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, amyl acetate, hexyl acetate, methyl propionate, ethyl propionate, propyl propionate, butyl propionate, pentyl propionate, methyl butyrate, ethyl butyrate, propyl butyrate, methyl valerate, ethyl valerate, ethyl isovalerate, ethyl hexanoate and/or methyl hexanoate. The ether ester compound has a structure of formulae (R1-C(=O)-O-R2-O-R3) and (R6-C(=O)-O-R7).Either R1 = H, 1-5C alkyl, or R4-O-R5 group; andR2 = 1-7C alkylene; andR3 = 1-3C alkyl; orR1R2R3 = up to 12C group; eitherR4 = alkyl; andR5 = alkylene; orR4R5 = up to 5C group, where at least one of R1, R2 and R3 is at least partially fluorinated; eitherR6 = H, 1-6C alkyl or R8-O-R9 group; andR7 = alkyl group having up to 6C, where at least one of R6 and R7 is at least partially fluorinated; orR6R7 = up to 7C; eitherR8 = alkyl; andR9 = alkylene; orR8R9 = up to 6C. EXAMPLE - Typical composition comprised: lithium hexaflourophosphate (1 M); methoxyethyl acetate (98 wt.%); and vinylene carbonate (2 wt.%).