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EVA composite adhesive film used for photovoltaic packaging and having anti-PID performance

A composite adhesive, photovoltaic technology, applied in the direction of film/sheet adhesives, adhesives, adhesive types, etc., can solve the problems of photovoltaic module products failing to pass PID test, battery power reduction, etc., to achieve good PID performance , the effect of improving service life and improving efficiency

Inactive Publication Date: 2016-08-03
SAITERUI SOLAR ENERGY SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, although some progress has been made in the research of photovoltaic EVA packaging film for anti-PID technology, it requires simultaneous PID treatment at the solar cell end, including UV lamp, laughing gas, ozone and other oxidation treatments on the solar cell, and this After treatment, the power of the cell will be reduced by about 1%; if the anti-PIDEVA packaging film is used with the cell without PID treatment, the photovoltaic module produced will not pass the PID test

Method used

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  • EVA composite adhesive film used for photovoltaic packaging and having anti-PID performance
  • EVA composite adhesive film used for photovoltaic packaging and having anti-PID performance
  • EVA composite adhesive film used for photovoltaic packaging and having anti-PID performance

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Embodiment 1

[0045] combined with figure 1 As shown, the present embodiment provides a kind of EVA composite adhesive film with anti-PID performance for photovoltaic encapsulation, which comprises an anti-ultraviolet EVA adhesive film layer 1, a transparent EVA adhesive film layer 2 and a white reflective EVA adhesive film layer 3 successively, wherein, The transparent EVA film layer 2 and the side of the reflective EVA film layer 3 are fixed to form a bag-shaped structure with one side opening, the solar cells are placed in the bag-shaped structure, and the ultraviolet-proof EVA film layer 1 is arranged on the front side of the battery sheet; the surface of the transparent EVA film layer 2 opposite to the reflective EVA film layer 3 is provided with patterns.

[0046]Wherein, the VA content of the anti-ultraviolet EVA film layer is 20%, the VA content of the transparent EVA film layer is 22%, and the VA content of the white reflective EVA film layer is 24%.

[0047] The thicknesses of th...

Embodiment 2

[0062] combined with figure 1 As shown, the present embodiment provides a kind of EVA composite adhesive film for photovoltaic encapsulation with anti-PID performance, it comprises anti-ultraviolet EVA adhesive film layer 1, transparent EVA adhesive film layer 2 and white reflective EVA adhesive film layer 3 successively, wherein, The transparent EVA film layer 2 and the side of the white reflective EVA film layer 3 are fixed to form a bag-like structure with one side opening, the solar cells are placed in the bag-like structure, and the ultraviolet-proof EVA film Layer 1 is arranged on the front side of the battery sheet; the surface of the transparent EVA film layer 2 opposite to the white reflective EVA film layer 3 is provided with patterns.

[0063] Wherein, the VA content of the anti-ultraviolet EVA film layer is 22%, the VA content of the transparent EVA film layer is 24%, and the VA content of the white reflective EVA film layer is 26%.

[0064] The thicknesses of the...

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Abstract

The invention provides an EVA (Ethylene Vinyl Acetate) composite adhesive film used for photovoltaic packaging and having anti-PID (Potential Induced Degradation) performance. The EVA composite adhesive film comprises 0.05-7% of an acrylamide crosslinker, 0.05-3% of an assistant crosslinker, 0.02-0.5% of an ultraviolet stabilizer, 0.02-0.5% of an assistant antioxidant, 0.02-0.5% of a tackifier, a conventional additive and the balance of EVA. According to the EVA composite adhesive film used for photovoltaic packaging and having anti-PID performance, provided by the invention, the EVA composite adhesive film is endowed with high anti-PID performance through EVA formula adjustment and structure improvement.

Description

technical field [0001] The invention relates to an EVA composite adhesive film, in particular to an EVA composite adhesive film for photovoltaic packaging with anti-PID performance. Background technique [0002] Solar energy is a green, non-polluting and inexhaustible energy source. Compared with other energy sources, solar energy is ubiquitous and can be used locally in most areas of the earth. Therefore, in the past ten years, the solar energy industry It has become the focus of the development of countries all over the world. The utilization of solar energy is mainly to convert it into electrical energy through solar panels, and then do other purposes, such as solar air conditioners, street lamps, electric vehicles and so on. Since the working environment of solar cell modules is mainly outdoors, and cells for photovoltaic modules cannot be directly exposed to natural conditions such as sunlight and rain, it is necessary to seal them. [0003] U.S. Patent No. 2001 / 00452...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J131/04C09J11/06
CPCC09J7/00C08K5/098C08K5/20C08K5/3492C08K5/526C08K5/5425C08L2201/08C08L2203/16C08L2203/20C09J11/06C09J131/04
Inventor 杨同禄
Owner SAITERUI SOLAR ENERGY SUZHOU CO LTD
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