High-radiation solar cell backboard

Abstract

The invention belongs to the technical field of solar cells and particularly relates to a high-radiation solar cell backboard. The high-radiation solar cell backboard is characterized by comprising an anti-scraping wear-resistant coating, a first adhesive layer, an aluminum alloy layer, a second adhesive layer, an insulation isolation layer, a third adhesive layer and an ethylene-vinyl acetate bonding layer which are connected in sequence. The high-radiation solar cell backboard has the advantages that aluminum alloy is good heat conductor, and heat generated in a cell component can be dissipated timely so as to guarantee the service life of a solar cell; the compact structure of the aluminum coil is good in moisture blocking performance, so that the moisture transmittance of the backboard is 0.001g / m<2>*d; the production cost of the backboard is lowered, the backboard moisture transmittance is reduced, the radiation performance of the cell component is increased, and the service life of the cell component is prolonged.

Description

[0001] technical field [0002] The invention belongs to the technical field of solar cells, and in particular relates to a solar cell backboard with high heat dissipation. [0003] Background technique [0004] Nowadays, the world's energy crisis is becoming more and more serious, and human beings have put forward high demands on new energy sources. Therefore, clean energy represented by solar energy and wind energy has gained a lot of room for development. Today, solar cells have been widely used in various technical fields in the world. At present, the common solar cell backplane structure has a TPT structure, where T refers to DuPont’s Tedlar film, which is composed of polyvinyl fluoride (PVF), and P refers to polyethylene terephthalate (PET) film, so TPT refers to PVF / PET / PVF structure, the three layers of film are bonded with a suitable adhesive. [0005] However, PVF film is only produced by DuPont of the United States in the world, and the price is high and the s...

AI Technical Summary

Problems solved by technology

[0006] In the existing technology, the water vapor transmission rate of the fluorine film is high, and it is easy to be scratched and scratched during transportation and use. Generally, the life of the battery components is required to be 25 to 30 years. However, due to the fluorine film itself and external conditions Influenced by the influence of water vapor through the back plate, the battery components are easily eroded by water vapor and shorten the service life; at the same time, the back plate cannot dissipate the heat generated by the sun in time, resulting in an increase in the temperature of the battery components. In the long run, the performance of the components is easily affected. damage

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