TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic dopant is polyacid, polyacid salt, polyacid hydrate, silicate, sulfate, selenite or arsenide, or preferably oxide, orthophosphate, or condensed phosphate. The inorganic dopant is silicon dioxide, zirconium dioxide, boron phosphate, zirconium phosphate, zirconium phosphates, hydrogen zirconium phosphate, or titanium phosphate. Preferred Parameters: The inorganic dopant and the fluorine-containing ion exchange resin are at mass ratio of 0.5-50:100, preferably 1-25:100. The inorganic dopant has grain diameter of 0.005-50 mu m.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The fluorine-containing olefin is tetrafluoroethylene, trifluorobromomethane, trifluoroethylene, hexafluoropropylene and/or vinylidene fluoride, preferably tetrafluoroethylene or trifluorobromomethane. The fluorine-containing vinyl chloride monomer with functional group is of formula Y'1(CF2)a(CFRf1)b(CFRf2)cO(C(CF2X)FCF2O)n-CF=CF2, Rf3CF=CF(CF2)dY'2, or F2C=CFOCF2C(CF2OC3)FOCF2CF2Y'3. The fluorine-containing vinyl chloride monomer with crosslinking site is of formula F2C=CFRf4Y'4, or Y5(CF2)a'(CFRf5)b'(CFRf6)c'O(C(CF2X1)FCF2O)n'-CF=CF2.a, b, c=0-1;n=0-1;X=F, Cl, Br or I;d=0-5;Rf1, Rf2, Rf3= are respectively selected from perfluoroalkyl or chlorofluoroalkyl;Y'1, Y'2, Y'3=SO2M, COOR3 or PO(OR4)(OR5);M=F, Cl, OR, or NR1R2;R=Me, Et or propyl, H, Na, Li, K or NH4+;R1, R2=H, Me, Et or propyl;R3=H, Na, Li, K, NH3, Me, Et or propyl;R4, R5=H, Na, Li, K, N4+, Me, Et or propyl;Y'4 and Y'5=Cl, Br, I or CN;a', b'and c'=0 or 1;X1=F, Cl, Br or I;n'=0 or 1; andRf4, Rf5 and Rf6=perfluoroalkyl.Provided that a, b and c are not 0 at the same time; and a'+b'+c'is not equal to 0.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The cellular film is organic cellular film or inorganic cellular film, polymer film, ultra-thin ceramic film and ultra-thin molecular sieve film, fluorocarbon polymer film, ultra-thin silicon dioxide film, titanium dioxide film, zirconium dioxide film, or preferably porous glass film. The fluorine-containing ion exchange resin in the film is crosslinked on surface of the cellular film or the apertures of the cellular film. Preferred Parameters: The cellular film has an aperture of 0.1-1 mu m, thickness of 5-100 mu m, and pore rate of 30-99 (preferably 70-97)%. The prepared resin solution has solid content of 1-80 wt.%. Preferred Method: The fluorine-containing ion exchange resin is formed by polymerization of fluorine-containing olefin, fluorine-containing vinyl chloride monomers with functional groups and fluorine-containing vinyl chloride monomers with crosslinking sites. In the method of preparing the film, the processes such as casting, extrusion, thermal press, spin coating, screen painting, spray finishing and/or dipping utilize dimethyl formamide, dimethyl acetamide, methyl formamide, dimethyl sulfoxide, N-methyl pyrrolidine, hexamethyl phosphoramide, acetone, water, ethanol, methanol, propanol, isopropanol, glycol and/or propanetriol. When the film is formed, it is subjected to heat treatment at 30-300 degrees C for 10-100 minutes.