TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: Lithium salt is lithium perchlorate (LiClO4), lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), lithium bis(oxalato)borate (LiBOB), lithium difluoro(oxalato)borate (LiODFB), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), lithium trifluoromethanesulfonate (LiCF3SO3), lithium bis(trifluoromethanesulfonimide) (LiN(CF3SO2)2), and/or lithium oxalyldifluoroborate (LiBF2C2O4). Additive is solid electrolyte interface forming improving agent, cathode protection agent, lithium salt stabilizer, overcharge protection agent, fire-retardant additive, lithium deposition improving agent, ionic salvation enhancement agent, aluminum corrosion inhibitor, wetting agent, and/or viscosity diluter. Anode is natural graphite, artificial graphite, modified graphite, amorphous graphite, mesocarbon microbeads, silicon-based materials, tin-based materials, and/or lithium titanate (Li4Ti5O12). Cathode is lithium cobaltate (LiCoO2), lithium nickelate (LiNiO2), LiNi1-(x+y)CoxMyO2, lithium iron phosphate (LiFePO4), lithium vanadium phosphate (LiVPO4), lithium manganese phosphate (LiMnPO4), LiFe1-a-bVaMnbPO4, lithium iron silicate (Li2FeSiO4), lithium manganese silicate (Li2MnSiO4), and/or Li2FezMn1-zSiO4.M=Mn or Al; andx, y, z, x+y, a, b, a+b=0-1.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: Organic solvent is ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, dipropyl carbonate, dibutyl carbonate, ethyl methyl carbonate, methyl propyl carbonate, butyl formate, 1,4-butanolide, 2-methyltetrahydrofuran, 1,2-dimethoxyethane, methyl acetate, methyl propionate, ethyl propionate, methyl butyrate, trifluoroethyl methacrylate, dimethyl sulfoxide, sulfolane, propanesultone, glycol sulfite, and/or diglycol dimethyl ether. Crosslinking agent is N,N'-methylenediacrylamide, ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, trimethylolpropane triacrylate, tripropylene glycol diacrylate, tetraethoxysilane, tetramethoxysilane, trimethoxysilane, and/or divinylbenzene. Initiator is dimethyl 2,2'-azobis(2-methylpropionate), azobisisobutyronitrile, azobisisoheptonitrile, dicumyl peroxide, di-tert.-butyl peroxide, benzoyl peroxide, lauroyl peroxide, and/or tert.-butyl peroxy benzoate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Parameters: Prepolymer has weight average molecular weight of 100-5000 g/mol, preferably 200-2000 g/mol. Gel polymer electrolyte has conductivity of 3.5-6.9x 10-3 S/cm. Preferred Compositions: Polyamides are polycaprolactam, polycapryllactam, polyphthalamide, polyterephthalamide, poly(hexamethylene sebacamide), polytrimethylhexamethyleneterephthalamide, poly(p-phenylene terephthalamide), poly(m-phenylene isophthalamide), poly(hexamethylene adipamide), and/or poly(p-benzamide). Prepolymers further contain polyimides e.g. bismaleimide prepolymer, bismaleimide triazine resin, polyesterimide, ketone anhydride polyimide, polyetherimide, maleic anhydride polyimide, poly(pyromellitimido-1,4-phenylene), and/or polyarylene imide sulfide. Monomer is dimethyl cis-butenedioate, methyl acrylate, ethyl acrylate, 2-propenoic acid, methyl methacrylate, ethyl methacrylate, methallyl methacrylate, monomethyl maleate, dimethyl maleate, diethyl maleate, dibutyl maleate, diisooctyl maleate, diisopentyl maleate, N,N-dimethylacrylamide, acrylamide, and/or methacrylamide. The composition contains 0.5-30 wt.%, preferably 2.5-15 wt.% prepolymer, 7.5-15.5 wt.%, preferably 10.5-12.5 wt.% lithium salt, 70-99.34 wt.%, 85-90 wt.% organic solvent, 0.1-8 wt.%, preferably 0.8-4 wt.% crosslinking agent, 0.01-5 wt.%, preferably 0.1-1 wt.% initiator, 0-8 wt.%, preferably 0.8-3.5 wt.% monomer, and 0.1-10 wt.%, preferably 0.2-5 wt.% additive, and total content is 100 wt.%. Prepolymer further contains polycarbonates, polymethyl methacrylate, polyacrylamide, polyvinyl acetate, polyvinylidenefluoride, polyvinylidenefluoride-hexafluoropropylene copolymer, polyurethane, polyethyleneoxide, polyethyleneglycol dimethylether, polyethyleneglycol diethyl ether, polyethyleneglycol dimethacrylate, and/or polypropyleneglycol diacrylate. Separator is polyethylene film and/or polypropylene film. Preferred Conditions: Polymerization reaction temperature is 20-100 degrees C, preferably 60-85 degrees C.