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Flexible solar cell packaging multilayer composite film and application thereof

A solar cell and multi-layer composite technology, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of large packaging film thickness, low product yield rate, soft and difficult to spread, etc., to achieve improved yield rate and good water vapor barrier , the effect of excellent transmittance

Inactive Publication Date: 2016-11-16
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glass used for traditional component encapsulation is difficult to meet the needs of emerging markets for light weight and easy bending of encapsulation materials
[0004] Looking at the existing high-barrier packaging technologies, polyester film is used as the base material to prepare a water vapor barrier layer on it, and then it is made by multi-layer compounding, resulting in large thickness and poor bendability of the packaging film.
Packaged components have poor flexibility and are not easy to carry, install and transport
As for the flexible and foldable substrates that can be used for packaging, on the one hand, there is no high-flexibility and high-barrier packaging film products, and there is no related technology disclosure; Defects are formed, resulting in low product yield

Method used

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  • Flexible solar cell packaging multilayer composite film and application thereof
  • Flexible solar cell packaging multilayer composite film and application thereof
  • Flexible solar cell packaging multilayer composite film and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] As the material of the base film layer, an ETFE film (Asahi Glass 50N1250DSC) with a thickness of 50 μm and a light transmittance of 92% is selected, and an acrylate compound primer (CN201110133880.6) is coated on its surface using a metal micro-gravure coater on the well. The unwinding tension is 50N~150N, the coating speed is 10~15m / min, the roller speed ratio is 75%, the drying path temperature is controlled at 40℃ / 40℃ / 60℃ / 80℃ / 60℃, and the winding tension is 100N~150N. Finally, an undercoat layer with a film thickness of 1.5 μm was formed.

[0056] Use PECVD coating device at film forming pressure 1.5Pa, power frequency 90kHz, use hexamethyldisiloxane (HMDSO) and oxygen as reaction raw material gas, two gas flow ratio HMDSO:O 2 =10:1, the vehicle speed is 2m / min, the coating is divided into 3 times, and the power used for the three times is 1.5kW / 2.2kW / 2.6kW respectively. A gas barrier layer with a thickness of 300 nm was obtained.

[0057] The protective film mate...

Embodiment 2

[0059] Others are the same as in Example 1, the base material is an ETFE film with a thickness of 25 μm and a light transmittance of 91%, the preparation process of the undercoat and the gas barrier layer is unchanged, and the water vapor transmission rate and light transmittance performance of the final product are shown in Table 1 shown.

Embodiment 3

[0061] Others are the same as in Example 1, the substrate is a PI film with a thickness of 75 μm and a light transmittance of 85%, the preparation process of the primer layer and the gas barrier layer remains unchanged, and the water vapor transmission rate and light transmittance performance of the final product are shown in Table 1 shown.

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PUM

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Abstract

The invention provides a flexible solar cell packaging multilayer composite film and an application thereof. The packaging film is composed of a packaging film and a protection film; the light transmittance of the packaging film is 80%-95%, and the packaging film is successively composed of a base film layer, a priming coat and a gas barrier layer; the thickness of the base film layer is 10 [mu]m-150 [mu]m, and the light transmittance is greater than 85%; the protection film is composed of a base material and a release type layer formed on the base material. The packaging film is as light as only 1 / 4 of a routine packaging film product, and is convenient to carry and use, and for assembly product transport; the light ray utilization rate of the packaging film is high, so that the generating efficiency of a module is improved; the gas barrier layer has a sound moisture barrier property, and can meet solar cell daily use demands.

Description

technical field [0001] The invention provides a solar energy encapsulation thin film, in particular a separator for flexible solar cell encapsulation. Background technique [0002] With the development and maturity of solar cell technology and people's awareness of new energy sources, solar cells are not limited to conventional solar power plants, but are more and more widely used in daily life. Building-integrated photovoltaics (BIPV), vehicle-mounted solar cells, portable solar chargers, solar tents, solar backpacks and other civilian products are emerging. [0003] Compared with traditional solar cell modules, solar cell products used in daily life require lower quality and easy to bend performance. However, the traditional glass used for component packaging is difficult to meet the needs of emerging markets for light weight and easy bending of packaging materials. [0004] Looking at the existing high-barrier packaging technologies, polyester film is used as the base m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L31/048
CPCH01L31/048H01L31/0481H10K30/00H10K30/88Y02E10/549
Inventor 宋鑫赵伟涛刘墨宁宣玉凤刘晓昊刘贤豪
Owner LUCKY HUAGUANG GRAPHICS
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