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Photovoltaic module packaging adhesive film and photovoltaic module

A photovoltaic module packaging and packaging film technology, which is applied in photovoltaic power generation, adhesives, electrical components, etc., can solve the problems of low yield rate of high-efficiency thinning components, white film wrinkles, and easy cracks, etc., and achieve good power gain Effect, easy preparation, and high yield

Pending Publication Date: 2021-11-02
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a photovoltaic module encapsulation adhesive film, which can improve the low yield of existing high-efficiency thinned modules, defects such as cracks and fragments, and the white adhesive film that occurs during the lamination process of cells. Wrinkles, white overflow, flanging problems

Method used

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  • Photovoltaic module packaging adhesive film and photovoltaic module
  • Photovoltaic module packaging adhesive film and photovoltaic module
  • Photovoltaic module packaging adhesive film and photovoltaic module

Examples

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preparation example Construction

[0076] Another aspect of the present invention provides a method for preparing a photovoltaic module encapsulation adhesive film, comprising the following steps:

[0077] The interlayer is prepared by a melt extrusion process;

[0078] Prepare the upper coating on one side of the interlayer at 60-200°C by one of the methods of screen coating, mask coating, spray coating, inkjet printing, screen printing or transfer printing, and / or on the interlayer The other side of the undercoating layer is prepared by one of anilox coating, mask coating, spray coating, inkjet printing, screen printing or transfer printing process at 60-200°C;

[0079] Prepare the transparent layer by laminating or coating process;

[0080] The bonding layer is prepared by lamination or coating process.

[0081] The preparation method adopted in the photovoltaic module encapsulating adhesive film in the present invention only needs to be able to prepare the encapsulating adhesive film having a five-layer s...

Embodiment 1

[0085] Such as figure 1 As shown, a photovoltaic module encapsulation adhesive film 100 is sequentially composed of a transparent layer 11, an upper coating 12, an interlayer 13, an undercoat 14 and an adhesive layer 15. The thickness of the transparent layer 11 is 200 μm, and the upper coating 12 The thickness of the interlayer 13 is 10 μm, the thickness of the interlayer 13 is 300 μm, the thickness of the undercoat layer 14 is 1 μm, and the thickness of the adhesive layer 15 is 100 μm.

[0086] Wherein, the transparent layer 11 is made of the following components: ethylene-vinyl acetate copolymer (DuPont) 85wt%, 2-[4-[2-hydroxyl-3-tridecyloxypropyl]oxy]-2- Hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (BASF) 5wt%, polysuccinic acid (4-hydroxy-2,2,6 , 6-tetramethyl-1-piperidine ethanol) ester (BASF) 5wt%, 2,6-di-tert-butyl-4-methylphenol (Sanhe Chemical Industry) 2wt%, benzoyl peroxide (Graceia chemical) 3wt%;

[0087] The upper coating 12 is made from the foll...

Embodiment 2

[0092] Such as figure 1 As shown, a photovoltaic module encapsulation adhesive film 100 is sequentially composed of a transparent layer 11, an upper coating 12, an interlayer 13, an undercoat 14 and an adhesive layer 15. The thickness of the transparent layer 11 is 350 μm, and the upper coating 12 The thickness of the interlayer 13 is 50 μm, the thickness of the interlayer 13 is 200 μm, the thickness of the undercoat layer 14 is 5 μm, and the thickness of the adhesive layer 15 is 10 μm.

[0093] Wherein, the transparent layer 11 is made of the following components: ethylene-vinyl acetate copolymer (DuPont) 95wt%, 2-[4-[2-hydroxyl-3-tridecyloxypropyl]oxy]-2- Hydroxyphenyl]-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine (BASF) 3wt%, tris(2,4-di-tert-butylphenylphosphite) ) ester (Yongguang Chemical) 1.8wt%, tert-butylperoxycarbonate-2-ethylhexyl (Sanhe Chemical Industry) 0.1wt%, tert-butylperoxycarbonate-2-ethylhexyl (Graceia Chemicals) 0.1wt%;

[0094] The upper coating 12 is ma...

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Abstract

The invention belongs to the field of photovoltaic technology. The invention discloses a photovoltaic module packaging adhesive film. The packaging adhesive film comprises an interlayer, a transparent layer, a bonding layer and at least one coating layer. Wherein the thickness of the interlayer is 50-300 [mu] m, the thickness of the transparent layer is 200-350 [mu] m, and the thickness of the bonding layer is 10-100 [mu] m. The photovoltaic module packaging adhesive film provided by the invention has relatively high light reflection performance, especially has relatively high reflectivity in a visible light-infrared light region, and has a good power gain effect; the photovoltaic module packaging adhesive film is not prone to appearance defects such as wrinkles, white overflowing and flanging in the module laminating process, and the high yield is achieved; the photovoltaic module packaging adhesive film is simple and convenient to prepare, does not need to be subjected to pre-crosslinking treatment, is obviously thinned compared with a conventional adhesive film, and is beneficial to reducing the production cost.

Description

technical field [0001] The invention relates to the technical field of photovoltaics, in particular to a photovoltaic module encapsulation adhesive film and a photovoltaic module. Background technique [0002] In recent years, energy and environmental issues have become increasingly severe, and clean energy has attracted much attention. The development and innovation of photovoltaic industry chain technology continues to accelerate. High-efficiency cells such as PERC, Topcon, HJT, double-sided power generation cells, and multi-busbars are more and more widely used. In addition to cost considerations for grid parity, thin high-efficiency cells are stacked with power gain packaging. The reliability of the photovoltaic modules of the scheme has also attracted more and more attention during the lamination process and service process. [0003] At present, in terms of power gain, the use of white film is a solution with higher reliability and wider application range. This soluti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/50H01L31/048H01L31/054
CPCC09J7/29C09J7/50H01L31/0481H01L31/0547C09J2203/322C09J2301/162C09J2301/122Y02E10/50Y02E10/52
Inventor 林维红毛云飞寇智宁周光大
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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