Dye-sensitized solar battery with sealing structure and preparation method thereof

Abstract

The invention discloses a dye-sensitized solar battery with a sealing structure, which comprises conducting glass and a platinum electrode substrate, and an electrolyte is filled between the platinum electrode and the conducting glass. The conducting glass is printed with a plurality of silver grids, light anodes smaller than the silver grids are printed inside the silver grids, and the silver grids are coated with at least one layer of film with an injection hole. The film seals the silver grids, the electrolyte is filled between the film and the silver grids, and the platinum electrode substrate covers the film. Moreover, the injection hole is sealed by curing glue. Because of the combination of the film, the silver grids and the platinum electrode substrate in the structure, the probability that the electrolyte corrodes the silver grids and a packing material is reduced, so that the problems of volatilization and leakage of the electrolyte are finally avoided, the stability of the dye-sensitized solar battery is ensured, and the dye-sensitized solar battery has good technical effect. In addition, the invention also discloses a preparation method of the dye-sensitized solar battery.

Description

technical field [0001] The invention belongs to the field of solar cells, in particular to a dye-sensitized solar cell with a novel sealing structure and a preparation method. Background technique [0002] With the world's energy shortage, solar energy has attracted worldwide attention as a clean and pollution-free energy source. Therefore, solar cells are developing rapidly under the needs of the times. At present, the industrialization efficiency of monocrystalline silicon solar cells has nearly reached more than 15%, but silicon solar cells are expensive and pollute seriously, while dye-sensitized solar cells are low in cost, do not require silicon as a raw material, and have a simple manufacturing process. [0003] A dye-sensitized solar cell refers to a photochemical cell that uses a dye-sensitized porous nanostructured oxide semiconductor film as a photoanode. The dye-sensitized solar cell is a new type of solar cell developed by imitating the principle of photosynthe...

AI Technical Summary

Problems solved by technology

Dye-sensitized solar cells have the problem of electrolyte volatilization and leakage due to the liquid electrolyte encapsulated between the two electrodes, and the electrolyte corrodes the silver grid and packaging materials.

[0005] In addition, in the prior art, due to the problems of the above-mentioned solar cell structure, the sealing method also has its own shortcomings

Generally speaking, the sealing methods we currently use mainly include: screen printing method and scraper method; and, it is usually necessary to drill holes on the counter electrode as electrolyte injection holes, and there are glass holes in the drilling process. Fragmentation, which leads to an increase in cost

In addition, the encapsulation resin used is easily eroded by the electrolyte and shortens the service life of the solar cell, and the resin may be inhomogeneous during the coating process, and the resin may intrude into the photoanode, affecting the efficiency of the solar cell

Images