Photovoltaic module, photovoltaic adhesive film and preparation method thereof

A photovoltaic module and adhesive film technology, which is applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems that the adhesive film is prone to slipping and affects the production speed and yield of photovoltaic modules, so as to increase friction and ensure The effect of seamless fit

Active Publication Date: 2020-12-04
ZHEJIANG JINKO SOLAR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a photovoltaic module, a photovoltaic adhesive film and a preparation method thereof, aiming at solving the problem that the adhesive film is prone to slip during the preparation process of photovoltaic modules, which affects the production speed and yield of photovoltaic modules

Method used

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  • Photovoltaic module, photovoltaic adhesive film and preparation method thereof
  • Photovoltaic module, photovoltaic adhesive film and preparation method thereof
  • Photovoltaic module, photovoltaic adhesive film and preparation method thereof

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preparation example Construction

[0044] The present invention also provides a preparation method of the above-mentioned photovoltaic adhesive film, please refer to figure 2 , including the following steps:

[0045] Step S210: dissolving the easily sublimable material in a preset dispersant to form a slurry, the sublimation temperature of the easily sublimable material is lower than the maximum temperature during lamination;

[0046] Specifically, the easily sublimable material is one or more of naphthalene, aluminum trichloride or anthracene, by setting the surface of battery sheet 5 made of naphthalene, aluminum trichloride and silicon, conductive silver paste (Al, Ag), Substances such as tin-coated copper tape (Sn, Pb) are difficult to react, and after the lamination process, naphthalene or aluminum trichloride is sublimated and separated from the module system in a gaseous state, which can effectively avoid the impact of residual substances on the performance of photovoltaic modules. Correspondingly, the p...

Embodiment 1

[0056] (1) Preparation of anti-slip grain slurry:

[0057] Dissolve 10g of naphthalene (naphthalene will sublimate at room temperature at 25°C) in 20ml of polyvinylidene fluoride (PVDF) N-methylpyrrolidone solvent (NMP solvent), stir and mix well to form a slurry;

[0058] (2) Preparation of anti-slip photovoltaic adhesive film:

[0059] Paste a hollowed-out film according to a preset shape on the film body 1 (EVA), add the slurry to the hollowed-out part of the hollowed-out film, and remove the hollowed-out film after the slurry is cured, so that An anti-slip structure 2 is formed on the adhesive film body 1, wherein the preset shape is a wave shape.

Embodiment 2

[0061] (1) Preparation of anti-slip grain slurry:

[0062] Dissolve 10g of aluminum trichloride (sublimation temperature 178°C) in 20ml of polyvinylidene fluoride (PVDF) N-methylpyrrolidone solvent (NMP solvent), stir and mix well to form a slurry;

[0063] (2) Preparation of anti-slip photovoltaic adhesive film:

[0064] Paste a hollowed-out film according to a preset shape on the film body 1 (POE), in which a gap is formed at the hollowed-out position for two adjacent semiconductor sheets, and the slurry is added to the hollowed-out part of the hollowed-out film After the slurry is solidified, remove the hollowed-out film to form an anti-slip structure 2 on the film body 1, wherein the preset shape is wavy.

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Abstract

The invention provides a photovoltaic module, a photovoltaic adhesive film and a preparation method thereof. The photovoltaic adhesive film comprises an adhesive film body and an antiskid structure, wherein the adhesive film body has a first surface, the antiskid structure is arranged on the first surface, and the sublimation temperature of the antiskid structure is lower than the maximum temperature during lamination.

Description

technical field [0001] The embodiments of the present invention relate to the field of photovoltaic technologies, and in particular to a photovoltaic module, a photovoltaic adhesive film and a preparation method thereof. Background technique [0002] With the concept of green and environmental protection becoming more and more popular, the photovoltaic industry is booming. Photovoltaic modules are mainly composed of panels, first adhesive films, battery sheets, second adhesive films, and back sheets. Wherein, the first adhesive film is the bonding material between the battery sheet and the panel, and the second adhesive film is the bonding material between the battery sheet and the back plate. [0003] In the prior art, the first adhesive film and the second adhesive film are non-sticky at normal temperature and can be cross-linked at the curing temperature. Using extrusion molding, a stable and reliable adhesive film layer can be effectively formed to connect the battery a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/042H01L31/18
CPCH01L31/042H01L31/0481H01L31/1876Y02E10/50Y02P70/50
Inventor 卢王威刘俊辉陶武松郭志球
Owner ZHEJIANG JINKO SOLAR CO LTD
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