TECHNOLOGY FOCUS - POLYMERS - Preferred Polymer: The homopolymer is linear (preferably) or non-linear. The copolymer is selected from statistical, random, alternating, block and graft copolymers. It may be crosslinked, non covalently crosslinked or physically crosslinked.Preferred Property: The polymer has a molecular weight greater than 90000. It has an ionic conductivity greater than 1 x 10-6, preferably greater than 1 x 10-3. The nanoparticles have an average size of 2-25 nm.Preferred Electrolyte: The polymer gel electrolyte further includes a base, radical scavenger, complexing agent, pinhole-filler and/or compound reducing the charge recombination. It further includes an amine, redox couple, salt, solvent and nanoparticles. The polymer gel electrolyte is selected from:(1) polyethylene oxide, lithium perchlorate, propylene carbonate (PC) and/or ethylene carbonate (EC);(2) polyethylene oxide, ammonium perchlorate, propylene carbonate, and/or ethylene carbonate;(3) polyethylene oxide and/or polymethyl methacrylate, lithium perchlorate, propylene carbonate and/or ethylene carbonate;(4) polyacrylonitrile, lithium and/or magnesium trifluoromethanesulfonate, propylene carbonate and/or ethylene carbonate;(5) polyethylene oxide and poly(2-vinylpyridine), lithium perchlorate, 7,7,8,8-tetracyanoethylene-1,4-quinodimethane and/or tetracyanoethylene (TCNE);(6) polyethylene oxide and polyaniline, Li(CF3SO2)2N and H(CF3SO2)2N;(7) polyaniline grafted with poly(ethyleneoxy)carboxylate; or(8) polyethylene oxide and poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT-PSS).Preferred Composition: The polymer constitutes 1-10, preferably 1-5, wt.% of the polymer gel electrolyte.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The amine is pyridine or a pyridine derivative selected from 4-tert-butylpyridine, 2-vinylpyridine and poly(2-vinylpyridine). The redox couple is iodine I-/I3- with the counterion being lithium, sodium, potassium, tetrabutylammonium, cesium or 1-propyl-2,3-dimethylimidazolium iodide (DMPI) (molten salt). The salt is a redox inert salt, preferably bistrifluoromethanesulfonamide lithium Li((CF3SO2)2N. The solvent is propylene carbonate, ethylene carbonate, dimethyl carbonate or acetonitrile. EXAMPLE - Polyethylene oxide was dissolved in tetrahydrofuran (THF), stirred while heating up to 75 degrees C for 10 minutes, and cooled down to room temperature. Iodide and lithium iodide were dissolved in 0.5 ml THF and mixed with PC/EC (ratio 1:10 by weight). Li((CF3SO2)2N was added to the mixture (9.6 mg) (this concentration yields an ethylene oxide:lithium ratio of 20:1). The solutions were mixed and 50 microl were dropped on top of a dyed porous titanium dioxide electrode and kept overnight in the dark to allow the evaporation of THF. If applied, tert.-butylpyridine was added to the gel, or the dye-sensitized substrate was placed into a 50% solution in acetonitrile for 15 minutes before drop casting the polymer electrolyte.