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A kind of high light transmittance solar cell panel and its back film layer preparation method

A solar cell panel and back film layer technology, which is applied in the direction of photovoltaic power generation, circuits, electrical components, etc., can solve the problems that the back film cannot seal the solar cell panel, the surface of the back film has poor bonding ability, and peeling off, etc., to increase the high transparency Light rate and high temperature resistance, light transmittance improvement, good retention effect

Active Publication Date: 2017-03-22
湖南千洋智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor surface bonding ability and effective light transmittance of the back film, the back film cannot be permanently and transparently bonded to the solar panel by the EVA adhesive, and peeling often occurs, making the back film unable to be sealed with high light transmittance. solar panel

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0043] A preparation method for a back film layer of a high light transmittance solar cell panel, comprising the steps of:

[0044] S100 provides a base layer, and a weather-resistant layer is bonded to the outer surface of the base layer through a high light-transmitting adhesive. The weather-resistant layer is composed of the following components in parts by weight: 30-40 parts of polyvinylidene fluoride, 5- 9 parts of epoxy vinyl ester resin, 6-8 parts of aramid fiber, 5-8 parts of polyvinyl butyral, 4-6 parts of polyethylene glycol, 2-4 parts of nano-silica, 3-6 parts Titanate coupling agent and 4-6 parts of diisobutyl ketone;

[0045] S200 is to bond the bonding layer to the inner surface of the base layer with a high light-transmitting adhesive to form a layered back film, wherein the bonding layer is composed of the following components in parts by weight: 15-20 parts of a Vinyl silane, 8-12 parts of tert-butyldiphenylchlorosilane, 4-6 parts of benzoyl peroxide, 4-8 pa...

Embodiment 1

[0055] A solar cell panel, the solar cell panel is composed of the uppermost tempered glass layer, the middle layer of monocrystalline silicon solar cells and the lowermost back film layer. The monocrystalline silicon solar cell is connected to a junction box, the junction box is arranged under the back plate layer, the tempered glass layer is connected to the monocrystalline silicon solar cell layer through EVA glue, and the back film layer It is connected with the monocrystalline silicon solar cell layer through a high light-transmitting adhesive, and the surrounding aluminum alloy frame composed of the substrate layer, the solar cell layer and the back plate layer is edge-sealed.

[0056] The joints between the aluminum alloy frame, the solar battery sheet and the junction box are sealed with silica gel.

[0057] The high light-transmitting adhesive consists of the following components in parts by weight: 45 parts of modified silicone resin, 15 parts of methyl vinyl phenyl ...

Embodiment 2

[0092] A solar cell panel, the solar cell panel is composed of the uppermost tempered glass layer, the middle layer of monocrystalline silicon solar cells and the lowermost back film layer. The monocrystalline silicon solar cell is connected to a junction box, the junction box is arranged under the back plate layer, the tempered glass layer is connected to the monocrystalline silicon solar cell layer through EVA glue, and the back film layer It is connected with the monocrystalline silicon solar cell layer through a high light-transmitting adhesive, and the surrounding aluminum alloy frame composed of the substrate layer, the solar cell layer and the back plate layer is edge-sealed.

[0093] The joints between the aluminum alloy frame, the solar battery sheet and the junction box are sealed with silica gel.

[0094] The high light-transmitting adhesive is composed of the following components in parts by weight: 40 parts of modified silicone resin, 18 parts of methyl vinyl phen...

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Abstract

The invention relates to a high light transmission solar cell panel and a preparation method for a back film layer of the high light transmission solar cell panel. The solar cell panel comprises a toughened glass layer, a cell layer, a back film layer and an aluminum alloy framework, wherein the back film layer is boned at a back side of the cell layer through a high light transmission adhesive, the back film layer comprises a weather-resistant layer, a matrix layer and a bonding layer, the weather-resistant layer and the bonding layer are respectively bonded on the surface of the matrix layer through the high light transmission adhesive, and the high light transmission adhesive is composed of 40-50 parts of modified organic silicon resin, 15-20 parts of methyl vinyl phenyl silicone rubber, 5-10 parts of vinyl methyl ether, 2-4 parts of polybutylene telephthalate, 1-3 parts of ammonium persulfate and 1-2 parts of Tert-Armyl peroxy pivalate by weight. Through the high light transmission adhesive, high light transmittance and high temperature resistance of the back film layer in the solar cell panel can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of solar cell panels, in particular to a solar cell panel with a high light-transmitting back film layer and a preparation method for the back film layer thereof. Background technique [0002] With the rapid development of modern society, non-renewable resources continue to decrease, and finding and developing new energy has become an urgent problem to be solved. As a kind of green energy, solar energy is non-polluting to the environment and has a simple source. It can be said that it is inexhaustible within the life span of human beings. Therefore, solar energy has been widely developed and utilized as an alternative energy source. Nowadays, most of the effective use of solar energy comes from the conversion of solar cells. The solar cells are sensitive to light and can convert the light energy irradiated on their surface into electrical energy. [0003] Solar cell module packaging materials mainly includ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/049H01L31/18
CPCH01L31/048H01L31/0481H01L31/18Y02E10/50Y02P70/50
Inventor 翁毅邱诗妍
Owner 湖南千洋智能科技有限公司
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