TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The gelled polymeric electrolyte comprises metal salt selected from lithium hexafluorophosphate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium hexafluroantimonate, lithium perchlorate Lithium tetrachloroaluminate, lithium tetrachlorogallate, lithium nitrate, LiC(SO2CF3)3, lithium bis(trifluoromethyl sulfonyl)imide, lithium thiocyanate, LiO3SCF2CF3, LiC6F5SO3, LiO2CCF3, lithium triflate, LiB(C6H5), and/or lithium trifluoromethanesulfonate. The cathode material is selected from elemental sulfur, organic sulfide, carbon composites and aluminum, vanadium, titanium, chromium, copper, niobium, lithiated nickel oxide, cobalt and manganese, lithiated sulfide, lithiated selenide, lithiated telluride, lithium-based phosphide, lithium aluminum compounds, and lithiated mixture borides. The negative electrode material is selected from metallic lithium, a lithium alloy, a phase-stable, spherical carbon, vapor phase grown carbon fibers, carbon nanotubes, graphene, coke, graphite, carbon black, acetylene black, carbon fiber, glassy carbon, lithium titanium oxide, silicon, a silicon alloy, tin, and/or tin-based alloy.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The non-aqueous solvent contained in the electrolyte salt is selected from ethylene carbonate, propylene carbonate, butylene carbonate, dipropyl carbonate, anhydride, N- methylpyrrolidone, N- methyl formamide, dimethyl formamide, gamma - butyl lactone, acetonitrile, dimethyl sulfoxide, dimethyl sulfite, 1,2-dimethoxyethane, 1,2-dibutoxyethane, tetrahydrofuran, 2-methyltetrahydrofuran, propylene oxide, methyl acetate, methyl butyrate, ethyl butyrate, methyl propionate, ethyl propionate, dimethyl carbonate, diethyl carbonate, or ethyl methyl carbonate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The polymer is derived from a maleimide group-containing functional group of a precursor A and precursor B-containing Lewis base in advance in the non-aqueous electrolyte solution after the addition reaction to form a prepolymer, and introduced into an alkaline accelerator to the prepolymer C to start the polymerization reaction in situ to form a polymer cross-linking. The maleimide group-containing functional group of a precursor A has structure e.g. of formula (AA) or (BB).R1a = R1 or functional groups of e.g. ethane-1,2-diol moiety, 1,4-diethyl-piperazine moiety, 1-methyl-2-(o-tolylmethyl)benzene or silicon moiety of formula (D1); andR4 = -(CH2CH2)n, -C(O)-, -C(CH3)2-, -O-, -O-O-, -S-, -S-S-, -S(O)-, -(O) S (O)-, -O(C6H4)C(CF3)2(C6H4)O-; andn = 1-4..