TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The lithium salt comprises lithium perchlorate, lithium bromide, lithium chloride, lithium iodide, lithium thiocyanate, lithium tetrafluoroborate, lithium-iron-phosphate or lithium hexafluoroarsenate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The polyol comprises: ethylene glycol, diethylene glycol, triglycol, tetraglycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, glycerol or trimethylolpropane; or aminobenzoic acid, butanedioic acid, adipic acid, succinic acid (which is present as chain or annular structure) or propane-1,2,3-tricarboxylic acid, (which is present as chain or annular structure). The acid anhydride comprises succinic anhydride, furan-2,5-dione, phthalic anhydride, trimellitic anhydride or 2-(2,5-dioxotetrahydrofuran-3-yl)acetic acid (which is present in chain or annular structure). The epoxy group and double bonds comprising monomer comprises glycidyl methacrylate, allyl glycidyl ether-amino acid or an oxirane derivative of formula (II). The cross-linking agent comprises acrylic esters with mono-functional group, methacrylate, vinyl ether, allyl glycidyl ether-amino acid, ethyoxyacrylate, salicylic acid, phosphorus oxychloride, 1,6-hexanediol acrylate, dipropylene glycol acrylate, polyethylene glycol (200) acrylate, polyethylene glycol (400) acrylate, polyethylene glycol (600) acrylate, trimethylolpropane triacrylate or trimethylolpropane trimethacrylate. The initiator comprises dibenzoyl peroxide, dicumylperoxide, di-tert-butyl peroxide, dilauroyl peroxide, tert-butylperoxy benzoate, bicyclohexyl, azodiisobutyronitrile or azo-bis-iso-heptonitrile. The plasticizer comprises butyrolactone, ethylene carbonate, propylene carbonate, dimethyl carbonate, ethyl methyl carbonate, 1,2-propanediol carbonate and/or polyethylene glycol, which are mixed in definite proportions to prepare a mixed solution.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The synthesis of hyperbranched photosensitive polymer resin comprises: (a) providing polyol having 2-3 hydroxyl groups or polyether or polyprotic acid having 2-3 hydroxyl groups or acid anhydride; (b) reacting the hydroxyl groups of polyol with acid groups of polyprotic acid or acid anhydride, where the obtained polymer molecule comprises carboxyl groups; and reacting the polymer with epoxy groups of glycidyl methacrylate comprising epoxy groups or double bonds to produce hyper branched photosensitive polymer containing unsaturated groups. The hyperbranched photosensitive polymer resin is prepared by gel permeation chromatography with polystyrene having a molecular weight of 500-2000 g/mole, as starting material, where the end group of the molecular chain comprises hydroxyl group or the group of formula (CH3-C(OH)-A) (I).A = C=C residue.