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High-cohesiveness back film of solar cell and processing technology thereof

A solar cell and high-adhesive technology, applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of reduced adhesive performance between the backsheet and EVA, complicated adhesive processing technology, poor adhesive performance, etc., to achieve good Good barrier and bonding performance, good adhesion effect

Active Publication Date: 2012-07-04
JOLYWOOD SUZHOU SUNWATT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although fluorine materials can improve the overall performance of the backsheet, due to the characteristics of fluorine materials, they have high surface energy, hydrophobic surface, and poor bonding performance.
The bonding performance of the backplane and EVA is reduced, which makes the bonding process of the backplane and EVA complicated.

Method used

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  • High-cohesiveness back film of solar cell and processing technology thereof
  • High-cohesiveness back film of solar cell and processing technology thereof
  • High-cohesiveness back film of solar cell and processing technology thereof

Examples

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Effect test

Embodiment 1

[0040] For embodiment 1, a kind of processing technology of the back film of solar cell with high adhesiveness provided by the present invention mainly comprises the following steps:

[0041] (1) Perform plasma fluorosiliconization treatment on the surface 1 of the fluororesin polymer layer to activate the surface of the substrate, where the substrate refers to the fluororesin polymer layer. Plasma nitrogen silicon oxyalkylation treatment is performed on the surface of the base layer 2 to activate the surface of the base layer 2. The plasma treatment process adopted may be a relatively mature plasma treatment process in the prior art. Here, the fluorosiloxane compound is coated on the surface of the fluororesin polymer layer by spraying, rolling or dipping, so that the surface of the fluororesin polymer layer forms a fluorosiloxane film layer. Coating the nitrogen-siloxane compound on the surface of the base layer 2 by spraying, rolling or dipping, so that the surface of the b...

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Abstract

The invention relates to a high-cohesiveness back film of a solar cell, which is characterized by comprising a fluororesin polymer layer, a base layer and a polyolefin bonding layer, wherein a high-polymer adhesive layer is arranged between the fluororesin polymer layer and the base layer, the high-polymer adhesive layer is arranged between the base layer and the polyolefin bonding layer, and fluorosilicone type formed film layers are arranged on the two sides of the fluororesin polymer layer. The polyolefin bonding layer is compounded onto the back film disclosed by the invention, and the two are made into an integrated structure so as to be conductive to bonding with other parts and enable the production of the solar cell to be simpler and more convenient.

Description

Technical field: [0001] The invention relates to a component used in a solar battery, in particular to a solar battery back film with high adhesiveness, and to a process for processing the back film. Background technique: [0002] A solar panel is usually a laminated structure, mainly including a glass surface layer, an EVA sealing layer, a solar cell sheet, an EVA sealing layer and a solar cell back film, wherein the solar cell sheet is sealed and wrapped by two layers of EVA sealing layer. The main function of the solar cell back film is to improve the overall mechanical strength of the solar cell panel, and to prevent water vapor from penetrating into the sealing layer, which affects the service life of the cell. In order to improve the overall performance of the back film, a large number of solutions for improving the back film have appeared in the prior art. For example, the Chinese patent application number is CN200710185202.8, the publication date is May 14, 2008, an...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B7/12H01L31/048
CPCY02E10/50
Inventor 林建伟张育政司琼夏文进王志
Owner JOLYWOOD SUZHOU SUNWATT
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