TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The inorganic material is silica, talc, alumina, gamma-lithium aluminate, titanium dioxide, zeolite, molybdenum phosphate hydrate or tungsten phosphate hydrate. The electrolyte solution comprises lithium salt from lithium perchlorate, lithium triflate, lithium hexafluorophosphate, lithium tetrafluoroborate or lithium trifluoromethanesulfonylimide.Preferred Composition: The inorganic material is added in an amount of 1-100 wt.% based on the total weight of the polymer of the second porous matrix. The lithium salt is dissolved in the electrolyte solution at 1-200 wt.% based on the total weight of the polymer of the first polymer matrix and the second polymer matrix.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The inorganic material is silica, talc, alumina, gamma-lithium aluminate, titanium dioxide, zeolite, molybdenum phosphate hydrate or tungsten phosphate hydrate. The electrolyte solution comprises lithium salt from lithium perchlorate, lithium triflate, lithium hexafluorophosphate, lithium tetrafluoroborate or lithium trifluoromethanesulfonylimide.Preferred Composition: The inorganic material is added in an amount of 1-100 wt.% based on the total weight of the polymer of the second porous matrix. The lithium salt is dissolved in the electrolyte solution at 1-200 wt.% based on the total weight of the polymer of the first polymer matrix and the second polymer matrix.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The electrolyte solution is made of ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, methylethyl carbonate, tetrahydrofuran, 2-methyltetrahydrofuran, dimethoxyethane, methyl formate, ethyl formate and/or gamma-butyrolactone. The co-solvent is ethanol, methanol, isopropyl alcohol, acetone, dimethylformamide, dimethylsulfoxide, and/or N-methylpyrrolidone.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The first porous polymer is polyethylene, polypropylene, polyimide, polysulfone, polyurethane, PVC, cellulose, nylon, polyacrylonitrile, polyvinylidene fluoride, polytetrafluoroethylene and/or its copolymer. The single ion conductor is perfluorinated ionomer, methylmethacrylate/alkaline metal methacrylate copolymer ionomer, methylmethacrylate/alkaline itaconate copolymer ionomer, methylmethacrylate/alkaline maleate copolymer ionomer and/or polystyrene ionomer. The second porous polymer is a vinylidene fluoride based polymer, an acrylate based polymer and/or its copolymer. It can be a copolymer of vinylidene fluoride and hexafluoropropylene, a copolymer of vinylidene fluoride and trifluoroethylene, a copolymer of vinylidene fluoride and tetrafluoroethylene, polymethylacrylate, polyethylacrylate, polymethylmethacrylate, polyethylmethacrylate, polybutylacrylate, polybutylmethacrylate, polyvinylacetate, polyethylene oxide, polypropylene oxide and/or its copolymer.Preferred Property: The first polymer matrix has a thickness of 10-25 microns and the second polymer matrix has a thickness of 0.5-10 microns.Preferred Composition: The electrolyte solution is impregnated into the first polymer matrix and the second polymer matrix at 1-1000 wt.% based on the total weight of the polymer of the first polymer matrix and the second polymer matrix.