TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The quaternary ammonium cation is chosen from trialkyl amino ethyl methacrylate ammonium cation, trialkyl amino ethyl acrylate ammonium cation, trialkyl aminopropyl acrylamide ammonium cation, 1-alkyl-3-vinyl imidazolium ion, 4-vinyl-1-alkyl pyridinium cation, 1-(4-vinyl benzyl)-3-alkyl imidazolium ion, 1-(vinyloxy ethyl)-3-alkyl imidazolium ion, 1-vinyl imidazolium ion, 1-allyl imidazolium ion, N-alkyl-N- allyl ammonium cation, 1-vinyl-3-alkyl imidazolium ion, 1-vinyl-3-alkyl imidazolium ion, 1-glycidyl 3-alkyl-imidazolium ion, N-allyl-N-alkyl pyrrolidinium cation and quaternary diaryl-dialkyl ammonium cation. The salt with anion is chosen from bis((trifluoromethyl)sulfonyl)imide anion, 2,2,2- trifluoro N-((trifluoromethyl)sulfonyl)acetimido anion, bis((pentafluoroethyl)sulfonyl)imide anion, bis((fluoro) sulfonyl)imide anion, tetra-fluoroborate anion, hexafluoro phosphate anion and trifluoromethane sulfonyl imide anion. An ion source is lithium salt chosen from lithium tetrafluoroborate, lithium hexafluorophosphate, lithium fluorosulfonimide, lithium bis(trifluoromethylsulfonyl)imide, lithium bispentafluoroethanesulfonimide, lithium tris(trifluoromethylsulfonyl)methide, lithium 2,2,2-trifluoro-N-((trifluoromethyl)sulfonyl)acetamide, and lithium salt of formula: CnF2n+1CO2Li, CnF2n+1SO3Li and (R-SO2-N-SO2CF3)Li, proton donor chosen from fluoroboric acid, hexafluorophosphoric acid, fluorosulfonimide, (trifluoromethylsulfonyl)imide, pentafluoroethane sulfonimide, tris(trifluoromethylsulfonyl)imide, 2,2,2-trifluoro-N-((trifluoromethyl)sulfonyl)acetamide, and proton donor of formula: CnF2n+1CO2H , CnF2n+1SO3H and R-SO2-NH-SO2CF3 and/or iodine redox ion pair (I3-/I-) or bromine redox ion pair (Br3-/Br-).R=aliphatic group or aromatic group;andn=1-4.    TECHNOLOGY FOCUS - POLYMERS - Preferred Compound: The polymer (a) is fluorine-containing copolymer of formula: -(CR3R4-CR5F)m-(CR1R2-CFX)n (II) and/or -(CH2-CF2)m-(CF2-CFCl)n- (III).R3,R4,R5=R1;m=99-65 mol%;andn=1-35 mol%.Preferred Composition: The molten salt monomers (3-40 mol%) are graft-polymerized to the polymer (a). The composite polymer electrolyte composition contains monomer composition including charge-transfer ion source. The composite polymer electrolyte composition has layered structure containing the fluorinated polymer and graft polymer. Preferred Process: The fluorinated polymer is obtained by removing halogen atoms other than the fluorine from the polymer (a), and graft-polymerizing molten salt monomer by atom transfer radical polymerization.