Solar cell module

Abstract

The invention discloses a solar cell module, which includes a solar cell, and also includes a back plate, a transparent glass plate and a water-proof layer, the back plate and the transparent glass plate are respectively arranged on the bottom and the top of the solar cell, and the water-proof layer is located on the back Between the plate and the transparent glass plate, and surrounding the solar cell, the back plate includes an outer weather-resistant layer, a water vapor barrier layer, an oxygen barrier layer, a base layer and an inner weather-resistant layer stacked in sequence. The solar cell component has strong barrier properties to water vapor and oxygen, can prolong the service life of the solar cell, and increase the output power of the solar cell.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell assembly. Background technique [0002] As an inexhaustible clean energy source, solar energy has a wide range of applications. Since solar cell components are exposed to the atmosphere for a long time, they must withstand the erosion of various external environmental factors such as water vapor, oxygen, and ultraviolet rays. If they cannot be effectively Resisting these environmental factors will shorten the service life of solar cells, and the main function of solar cell components is to protect solar cells from the erosion of these environmental factors. The blocking requirements are relatively high. At present, the commonly used backsheet materials mainly include TPT structure, that is, two layers of Tedlar film developed and produced by DuPont Company are used as the weather-resistant layer to coat the middle layer of PET polyester film; TPE structure, one ...

AI Technical Summary

Problems solved by technology

[0003] However, since the molecular chain of PET polyester is relatively soft, in order to avoid the repulsive force between atoms during the accumulation process, it is prone to relative motion, so that there is more space in the accumulation body, and small molecules such as oxygen and water vapor are easily dissolved in PET. Therefore, PET polyester is only a medium barrier material, and its barrier properties to water vapor and oxygen are relatively limited, which also affects the barrier properties of the entire backsheet, which is not conducive to long-term use

At the same time, little research has been done on the packaging materials of solar cell modules and the water resistance of surface panels.

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