Aluminized high water resistant solar battery back membrane and manufacturing method thereof

Abstract

The invention relates to an aluminized high water resistant solar battery back membrane and a manufacturing method thereof, belonging to the technical field of solar-cell panel back membranes. The back membrane comprises seven layers of structures arranged in sequence from top to bottom, wherein a high-fluorine mixcrystal coating is coated between the lower surface of a first basic level and the upper surface of a second basic level, a PET (polyethylene terephthalate) layer is coated between the lower surface of a third basic level and the upper surface of a fourth basic level and an aluminum sheet layer is arranged between the lower surface of the second basic level and the upper surface of the third basic level which are arranged between the high-fluorine mixcrystal coating and the PET layer. The aluminized high water resistant solar battery back membrane with seven layers of structures is prepared by adopting a advanced high-fluorine mixcrystal interconnection permeating fusion technology, a plasma titanium silicide nanometer treatment technology, a high-precision unrippled coating technology and aluminum surface silylation, and the compositely arranged silylation aluminum sheet enhances the water-resistance of the product. The membrane is subjected to vacuum thermal forming integrally with ethylene vinyl acetate (EVA) sealing wax, solar battery plates and high-transmittance nonferrous glass for 15min, and the forming temperature is 135 DEG C. The assembly after forming satisfies the performance requirement of photovoltaic devices and has over 25 years of service life.

Description

technical field [0001] The invention belongs to the technical field of solar cell panel back film, and in particular relates to a compound aluminum type high water resistance solar cell back film and a manufacturing method thereof. Background technique [0002] Solar energy is an inexhaustible clean energy in nature. In recent years, the utilization of photoelectric conversion solar energy has made great progress, technology has continued to improve, and the market has expanded rapidly. Since the photoelectric conversion efficiency of silicon solar cells is higher than that of other types of solar cells, it has developed rapidly. In particular, solar panels made of solar cell backsheets combined with polycrystalline silicon solar cells have gradually become the mainstream of the market. [0003] As a green alternative to conventional methods of electricity production, photovoltaic cell modules are used to generate electricity from sunlight. Photovoltaic modules are assemble...

AI Technical Summary

Problems solved by technology

However, there are waves on the coating surface of the solar back film in the prior art, which causes the coatings to be not tight, the durability of the device is not high, and the water resistance is not high.

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