TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The absorbent material is included in a support element at a humidity-absorbed state, and is embedded in a capsule. The capsule is a controlled release capsule that dips the absorbent material inside the cell of the microporous, and has a size of less than or equal to 5 mu m. The absorbent material forms a coating layer on a portion of the electrode and/or the separation film, and is fixed with a binder polymer. The inorganic particle is hygroscopic inorganic particle. The inorganic particle is silicon dioxide, titanium dioxide, aluminum chloride, zirconium oxide, tin oxide, cerium oxide, magnesium oxide, calcium oxide, zinc oxide, yttrium oxide, lead zirconium titanate, lead lanthanum zirconium titanate (Pb1-xLaxZr1-yTiyO3), lead magnesium niobate-lead titanate (Pb(Mg3Nb(2/3))O3-PbTiO3), barium titanate, hafnium oxide and strontium titanate. The absorbent material consists of soda-lime, amine-grafted zeolite, lithium-silica monoethanolamine, diethanolamine, triethanolammine, N-methyldiethanol amine, 2-(2-aminoetoxy) ethanol, 2-amino-2-methyl-1,3-propanol, epoxy compound, amine compound, phosphine group of formula (CuR1(PH3)2), chromium pentacarbonyl hydride sodium complex, chromium pentacarbonyl hydride potassium complex, chromium pentacarbonyl hydride lithium complex, nickel phosphine, calcium hydroxide, magnesium hydroxide, barium hydroxide and strontium hydroxide.R1 = H or alkyl group.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The binder polymer consists of polyethylene oxide, polyvinylidene fluoride, polyvinylidene fluoride-hexa fluoro propylene, polyvinylidene fluoride-trichloroethylene, polymethyl methacrylate, poly acrylonitrile, polyacrylonitrile-styrene copolymer, polyvinylchloride, polyvinyl pyrrolidone, polyvinylacetate, ethylene vinyl acetate copolymer, gelatin, cyanoethyl pullulan, cyanoethyl polyvinyl alcohol, cyanoethylcellulose, cyanoethyl sucrose, pullulan, cellulose acetate, cellulose acetate butylate, cellulose acetate propionate, polyethylene glycol, polyethylene glycol dimethyl ether and carboxylmethylcellulose.