NOVELTY - A dye-sensitized nanocrystal solar battery quasi solid electrolyte comprises a mixture of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene), silicon dioxide nanoparticles, iodine/potassium iodide redox electron pair in a molar ratio of 1:7-1:10, lithium bis-(trifluoromethanesulfonylimide), and organic solvent. The total amount of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene) is 2-10% of organic solvent. The mass ratio of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene) is 1:4-4:1.    USE - Quasi solid electrolyte is used for dye-sensitized nanocrystal solar batteries (claimed).    ADVANTAGE - The quasi solid electrolyte improves short circuit current and photoelectric conversion efficiency of solar cells.    DETAILED DESCRIPTION - A dye-sensitized nanocrystal solar battery quasi solid electrolyte comprises a mixture of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene), silicon dioxide nanoparticles, iodine/potassium iodide redox electron pair in a molar ratio of 1:7-1:10, lithium bis-(trifluoromethanesulfonylimide), and organic solvent. The total amount of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene) is 2-10% of organic solvent. The mass ratio of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene) is 1:4-4:1. The amount of silicon dioxide nanoparticles is 10-30% of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene). The molar ratio of potassium of redox electron pair and oxygen of polyoxyethylene is 0.6-0.8. The organic solvent comprises propylene carbonate and ethylene glycol dimethyl ether in a volume ratio of 1:8-8:1. The amount of lithium bis-(trifluoromethanesulfonylimide) is 3-15% of the total weight of polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene). INDEPENDENT CLAIMS are included for the following:    (1) preparation of dye-sensitized nanocrystal solar battery quasi solid electrolyte, which involves weighing polyoxyethylene and poly(vinylidene fluoride-hexafluoropropylene) in organic solvent, heating in a water bath at 60-100 degrees C for dissolution, dissolving silicon dioxide nanoparticles in absolute ethyl alcohol and adding to the mixture, continuously heating and stirring uniformly to obtain high-molecular nanoparticles mixed solution, adding redox electron pair to the mixed solution, stirring at normal temperature for 4-8 hours to mix uniformly, adding lithium bis-(trifluoromethanesulfonylimide) to the obtained standard of solid electrolyte, and stirring to mix uniformly; and    (2) preparation of dye-sensitized nanocrystal solar battery, which involves dipping standard solid electrolyte on the surface of dye-sensitized nanocrystal film, baking the electrolyte to a gel in a baker at 60-100 degrees C, covering the platinum counter electrode and clamping the battery by clamp, and continuously roasting till the electrodes are firmly combined and capable of being assembled into dye-sensitized nano-crystal solar battery.