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Water-blocking PID-resistant solar cell panel assembly and preparation method thereof

A technology for solar panels and solar cells, applied in the field of solar cells, can solve problems such as inability of water vapor to seep out, component failure, etc., to reduce the risk of cell fragmentation or cracking, prevent damage, and improve the effect of anti-PID effect.

Pending Publication Date: 2020-10-02
SUZHOU FIRST PV MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art of the composite backsheet among the above-mentioned numerous inventions simply enhances the water resistance of the polymer material. Compared with the inorganic glass used as the backsheet material, the water vapor transmission rate performance of all areas on the backside of this solution is the same. The infiltration of water vapor is prevented, and the water vapor cannot seep out; adopting the above scheme or using glass as a backplane package can solve the infiltration of water vapor on the front and back, but it does not consider how the water vapor that enters the module for a long time seeps out. There is also the problem of component failure

Method used

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  • Water-blocking PID-resistant solar cell panel assembly and preparation method thereof
  • Water-blocking PID-resistant solar cell panel assembly and preparation method thereof
  • Water-blocking PID-resistant solar cell panel assembly and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] A water-blocking and anti-PID solar panel assembly, as attached figure 1 As shown, it includes a backplane 100, a lower packaging adhesive film 200, a battery panel 300, an EVA adhesive film 400 and a glass 500. The structures are the same as those in the prior art, except that the front side of the backplane 100 (that is, the same as the lower packaging adhesive film) 200) is provided with a water-blocking layer, the water-blocking layer includes a high water-blocking area 600a and a low water-blocking area 600b, and the water vapor transmission rate of the high water-blocking area 600a is 0.1g / m 2 .d -1 , the water vapor transmission rate of the low resistance water zone 600b is 6g / m 2 .d -1 . The high water resistance area 600a is located in all cell areas of the battery board, and the low water resistance area 600b is located in all cell intervals of the battery board. The composition of the water blocking layer is a polymer of p-phenylene terephthalamide, which...

Embodiment 2

[0035] A water-blocking and anti-PID solar panel assembly, as attached figure 2 As shown, it includes a backplane 100, a lower packaging adhesive film 200, a battery panel 300, an EVA adhesive film 400 and a glass 500. The structures are the same as those in the prior art, except that the front side of the backplane 100 (that is, the same as the lower packaging adhesive film) 200) is provided with two water-blocking layers, the water-blocking layer includes a high water-blocking area 600a and a low water-blocking area 600b, and the water vapor transmission rate of the high water-blocking area 600a is 0.01g / m 2 .d -1 , the water vapor transmission rate of the low resistance water zone 600b is 10g / m 2 .d -1 . The high water resistance area 600a is located in all cell areas of the battery board, and the low water resistance area 600b is located in all cell intervals of the battery board. The composition of the water-blocking layer is tetrachloro-p-xylene ring dimer. In a vac...

Embodiment 3

[0037] A water-blocking and anti-PID solar panel assembly, as attached image 3 As shown, it includes a backplane 100, a lower packaging adhesive film 200, a battery panel 300, an EVA adhesive film 400, and a glass 500. The structures are the same as those in the prior art, except that the front side of the lower packaging adhesive film 200 (that is, the same as the battery panel 300 The contact surface) is provided with a water blocking layer, the water blocking layer includes a high water blocking area 600a and a low water blocking area 600b, and the water vapor transmission rate of the high water blocking area 600a is 0.3g / m 2 .d -1 , the water vapor transmission rate of the low resistance water zone 600b is 7g / m 2 .d -1 . The high water resistance area 600a is located in the entire cell area of ​​the battery panel and 10% of the cell intervals, and the low water resistance area 600b is located in 90% of the cell intervals of the battery panel.

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Abstract

The invention belongs to the technical field of solar cells, in particular to a water-blocking PID-resistant solar cell panel assembly and a preparation method thereof. The water-blocking PID-resistant solar cell module comprises a backboard, a lower packaging adhesive film, a cell panel, an EVA adhesive film and glass, the backboard or the lower packaging adhesive film is provided with a water blocking layer, the water blocking layer comprises a high water blocking area and a low water blocking area, the water vapor transmittance of the high water blocking area is smaller than 0.5 g / m < 2 >.D <-1 >, and the water vapor transmittance of the low water blocking area is larger than 5g / m < 2 >. D <-1 >. According to the invention, local water blocking is carried out on a cell assembly, the water vapor in the environment can be effectively prevented from entering the cell assembly, and the water vapor entering the cell assembly can be discharged, so that the PID-resistant effect of the cell assembly is improved.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a water-blocking and PID-resistant solar cell panel assembly and a preparation method thereof. Background technique [0002] The backside packaging of solar cell modules, the existing technology is to use polymer multilayer composite materials on the backside of single glass modules, and use glass on the backside of double glass modules, which are laminated and packaged with EVA film to form modules. The modules are used outdoors for a long time, especially in high temperature and high In wet areas, water vapor easily enters the interior of the module. On the one hand, it will cause appearance problems such as adhesion and delamination of the film, and on the other hand, water vapor will degrade the film and produce acidic substances. These acidic substances will corrode the conductive metal on the cell. layer, causing the power generation failure of the component...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/048H01L31/0481H01L31/18Y02E10/50Y02P70/50
Inventor 杨小旭潘建军王富成秦文彬许伟
Owner SUZHOU FIRST PV MATERIAL CO LTD
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