Double-sided photovoltaic module adopting transparent plastic back plate and preparation process thereof

Abstract

The invention discloses a double-sided photovoltaic module adopting a transparent plastic back plate and a preparation process thereof. The solar cell module comprises coated glass, a cell layer and aback plate, the cell layer is located between the coated glass and the back plate, the lower portion of the coated glass is connected with the cell layer through a first EVA adhesive film, and the lower portion of the cell layer is connected with the back plate through a second EVA adhesive film. Through the surface treatment process, the surface energy of the PET layer can be improved; the PET layer is more tightly bonded with the fluorine-containing PVDF layer and the PVF layer; the PET layer contains aluminum silicate, silicon dioxide and a coating on the PVDF layer; the photovoltaic module backboard can improve the endurance capability of the backboard to external stimulation, effectively improves the strength and anti-aging capability of the backboard, prolongs the service life, improves the blocking capability to ions, prevents the ions from migrating in the module, alleviates the PID effect in the photovoltaic module, improves the inhibition capability of the backboard to the PID effect, and is suitable for wide popularization and application.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a double-sided photovoltaic module using a transparent plastic backplane and a preparation process thereof. Background technique [0002] Photovoltaic module is a device that directly converts light energy into electrical energy through the photoelectric effect. In the photovoltaic industry, its components are researched in many aspects. The solar back panel is located on the back of the photovoltaic module, which protects and supports the cells. The double-sided photovoltaic modules generally use glass as the backplane. When the frame is not framed, the modules are easy to bend and deform, resulting in cell cracking and glass bursting, and yellowing, delamination, and cracking will also occur. The transparent plastic backplane and glass Compared with the back sheet, its weather resistance and anti-aging properties are poor. Therefore, we propose a bifacial photovoltaic module using...

AI Technical Summary

Problems solved by technology

[0002] Photovoltaic modules are devices that directly convert light energy into electrical energy through the photoelectric effect. In the photovoltaic industry, various researches have been carried out on its components. The solar backsheet is located on the back of the photovoltaic module, which protects and supports the cells. Double-sided photovoltaic modules generally use glass as the backsheet. When there is no frame, the module is easy to bend and deform, resulting in cell cracks and glass bursts, and yellowing, delamination, and fragmentation. Transparent plastic backsheets and glass Compared with the backsheet, its weather resistance and aging resistance are poor

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