TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Salt: The lithium salt is chosen from lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), lithium bis(oxalato)borate, lithium hexafluoro antimonate (LiSbF6), lithium hexafluoro arsenate (LiAsF6), lithium chlorate (LiClO4), lithium salt (LiCF3SO3, LiN(CF3SO2)2, LiN(C2F5SO2)2, LiSO3CF3, LiN(CxF2x+1SO2)(CyF2y+1SO2), LiAlO4, LiAlCl4) and their mixtures, where x and y are natural numbers. The cathode active material is carbon-based material. The anode active material is lithiated intercalation compound.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: At least one alcohol is chosen from polyethylene glycol, polypropylene glycol, alkanediol, ethoxylated alkanediol, propoxylated alkanediol, trimethylolpropane, ethoxylated trimethylolpropane, propoxylated trimethylolpropane, ditrimethylolpropane, ethoxylated ditrimethylolpropane, propoxylated ditrimethylolpropane, pentaerythritol, ethoxylated pentaerythritol, propoxylated pentaerythritol, dipentaerythritol, ethoxylated dipentaerythritol, propoxylated dipentaerythritol, bisphenol A, ethoxylated bisphenol A and propoxylated bisphenol A. The non-aqueous organic solvent is chosen from carbonate, ester, ether, ketone, nitrile and their mixtures, and comprises a carbonate-based solvent and an aromatic hydrocarbon-based organic solvent. The aromatic hydrocarbon-based organic solvent is an aromatic compound of formula (9), preferably benzene, fluorobenzene, toluene, fluorotoluene, trifluorotoluene, xylene and/or their mixtures.R2 = halogen and/or 1-10C alkyl; andq = integer ranging from 0-6.The polymer electrolyte further comprises a carbonate additive chosen from vinylene carbonate, divinyl sulfone, ethylene sulfite, carbonate having substituents chosen from halogen, cyano (CN) and nitro (NO2), and their mixtures, preferably carbonate having substituents chosen from halogen, cyano and nitro groups. The carbonate additive is of formula (10), preferably fluoroethylene carbonate.X1 = halogen, cyano and/or nitro groups.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The polymer is obtained by polymerizing at least monomer (I) and monomer (II) of formula: CH2=CR1-C(=O)-O-X (2), CH2=CR1-O-X (3), CH2=CR1-O-C(=O)-X (4), CH2=CH-CH2-O-X (5), CH2=CH-S(=O)2-X (6) and/or CH2=CR1-C(=O)-O-CH2CH2-NH-C(=O)-O-X (7), preferably monomer (II) is of formula (3,6 and/or 7).R1 = H, 1-10C hydrocarbon and/or 6-10C aromatic hydrocarbon; andX = 1-20C hydrocarbon, 1-20C halogenated hydrocarbon, 6-20C aromatic hydrocarbon and/or 6-20C halogenated aromatic hydrocarbon. Preferred Definitions:    A and B = group chosen from (meth)acryl, vinyl, allyl, vinyl sulfonyl, urethane (meth)acryl and their mixtures.