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Magnetic conductive PID-resistant adhesive film and solar cell module

A solar cell and magnetic technology, applied in electrical components, semiconductor devices, circuits, etc., can solve the problems of easy agglomeration of inorganic powders and poor anti-PID performance, and achieve strong adsorption, good conductivity, and high anti-PID performance. Effect

Active Publication Date: 2020-08-11
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a magnetic conductive anti-PID adhesive film and a solar cell assembly to solve the problem that the existing solar cell assembly has poor anti-PID performance and the inorganic powder in the packaging adhesive film is easy to agglomerate

Method used

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  • Magnetic conductive PID-resistant adhesive film and solar cell module
  • Magnetic conductive PID-resistant adhesive film and solar cell module

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preparation example Construction

[0034] Another aspect of the application also provides a preferred double-layer magnetic conductive anti-PID adhesive film preparation method, the preparation method comprising:

[0035] preparing raw materials for forming the first film layer according to a predetermined ratio;

[0036] preparing raw materials for forming the second transparent film layer according to a predetermined ratio;

[0037] The raw materials used to form the first film layer and the raw materials used to form the second transparent film layer are simultaneously melted and co-extruded, or calendered and extruded to obtain the required double-layer magnetic conductive anti-PID adhesive film.

[0038] Another aspect of the present application also provides a solar cell assembly, which includes the above-mentioned magnetic conductive anti-PID adhesive film.

[0039] Fe 3 o 4 With strong adsorption and good conductivity, it can absorb ions and transfer them to the frame of the module. By readjusting th...

Embodiment 1

[0046] 1. Preparation of magnetic conductive black anti-PID double-layer adhesive film

[0047] (1) 100 parts of ethylene-vinyl acetate copolymer, 0.2 parts of modifying additive 3-(methacryloyl chloride) propyltrimethoxysilane, 0.1 part of crosslinking additive trimethylolpropane triacrylic acid Esters and 0.1 part of crosslinking aid trimethylolpropane trimethacrylate, 0.3 part of thermal oxygen aging agent 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-di Methylbenzyl)-1,3,5-triazine-2,4,6-(1H, 3H,5H)-trione was mixed evenly, poured into the silo of the first single-screw extruder, and waited use;

[0048] (2) 100 parts of ethylene-vinyl acetate copolymer, 50 parts of Fe with a particle size of 2 to 3 μm 3 o 4 Powder, 0.2 parts of modified auxiliary agent 3-(methacryloyl chloride) propyl trimethyloxysilane, 0.1 part of cross-linking auxiliary agent trimethylolpropane triacrylate and 0.1 part of cross-linking auxiliary agent trihydroxy Methyl propane trimethacrylate, 0.3 part ant...

Embodiment 2

[0060] 1. Preparation of magnetic conductive black anti-PID double-layer adhesive film

[0061] (1) 100 parts of ethylene-alpha-olefin copolymer resin, 0.2 part of modification aid vinyltrimethoxysilane, 0.1 part of crosslinking aid trimethylolpropane trimethacrylate and 0.1 part of crosslinking agent Auxiliary pentaerythritol triacrylate, 0.3 parts of anti-heat and oxygen aging agent 2,2'-methylene-bis-(4-ethyl-6-tert-butylphenol) mixed evenly, poured into the first single-screw extrusion In the machine silo, ready for use;

[0062] (2) 100 parts of ethylene-α-olefin copolymer resin, 70 parts of Fe with a particle size of 2 to 3 μm 3 o 4 Powder, 0.2 parts of modified auxiliary agent vinyltrimethoxysilane, 0.1 part of cross-linking auxiliary agent trimethylolpropane trimethacrylate and 0.1 part of cross-linking auxiliary agent pentaerythritol triacrylate, 0.3 part of anti-hot oxygen The aging agent 2,2'-methylene-bis-(4-ethyl-6-tert-butylphenol) is mixed evenly, poured into...

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Abstract

The invention provides a magnetic conductive PID-resistant adhesive film and a solar cell module. The magnetic conductive PID-resistant adhesive film comprises a first film layer; raw materials for forming the first film layer comprise a first matrix resin and Fe3O4 powder; Fe3O4 can play a role in adsorbing ions and transmitting the ions to a module frame, and the risk of a PID effect caused by migration of sodium ions from a glass layer to the surface of an emitter layer can be inhibited by readjusting the electric field distribution between the glass layer and a battery piece layer. The addition of Fe3O4 can eliminate or neutralize a small amount of free acetic acid contained in the matrix resin or a small amount of acidic small molecules degraded in the aging process, thereby enhancingthe PID resistance of the adhesive film. The magnetic conductive PID-resistant adhesive film is magnetized by an external magnetic field, so that the filler particles are connected end to end and areuniformly distributed along the polarity direction of the magnetic field, the filler powder can be uniformly distributed in the adhesive film, and the appearance is free of overflow and chromatic aberration.

Description

technical field [0001] The invention relates to the field of solar cell manufacturing, in particular to a magnetic conductive anti-PID adhesive film and a solar cell assembly. Background technique [0002] During the production process of solar cells, the cells need to be packaged. The properties of the encapsulation material will largely determine the performance and lifetime of the solar cell module. EVA is the abbreviation of ethylene-vinyl acetate copolymer. Photovoltaic EVA film is a kind of thermosetting and sticky film, which is used to place in the middle of laminated glass. Due to the superiority of photovoltaic EVA film in terms of adhesion, durability, and optical properties, it is more and more widely used in current components and various optical products. Although the photovoltaic EVA film accounts for a small part of the overall cost of the module, it is closely related to the reliability of the module and has high technical requirements. [0003] Solar cel...

Claims

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Application Information

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IPC IPC(8): C09J123/08C09J11/04C09J11/06C09J7/10H01L31/048
CPCC09J123/0853C09J123/0815C09J11/04C09J11/06C09J7/10H01L31/0481C08K2201/01C08K2201/001C08K2003/2275C09J2203/322C09J2423/04C08L2205/02C08L2203/206C08K5/34924C08K13/02C08K3/22C08K5/13C08L23/0853C08K5/527C08K5/526C08L23/0815Y02E10/50
Inventor 王梁侯宏兵周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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