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A packaging front plate and a preparation process thereof

A preparation process and front plate technology, applied in the field of solar cell packaging components, can solve the problems of water resistance, light transmission insulation, poor weather resistance, complex packaging process, low yield rate, etc., achieve high light transmittance, improve power generation Efficiency and the effect of improving the yield

Pending Publication Date: 2019-01-18
DONGJUN NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing flexible solar front sheet materials usually use a composite film, including ETFE film, UV barrier film, water blocking film, PET film, etc. The above products have poor water resistance, light transmission, insulation, and weather resistance. , and the packaging process is complicated, and the yield rate is low

Method used

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  • A packaging front plate and a preparation process thereof
  • A packaging front plate and a preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In the following, we will refer to figure 1 A detailed description of the composite film for the package front plate and its preparation process in this embodiment will be given.

[0040] The package front plate of this embodiment is composed of a composite film tightly covering the upper surface of the solar cell module, which is composited by multiple films. Wherein 2 is the first adhesive layer with a thickness of 5-30um, more preferably 5-25um, more preferably 10-20um, and more preferably 15um. The flexible front plate is thin and light by introducing an adhesive layer Soft characteristics; 3 is the first water vapor barrier layer, thickness 1-30um, more preferably 5-25um, more preferably 10-20um, more preferably 15um; 4 is modified primer coating, thickness 1 -15um, more preferably 3-12um, more preferably 5-8um, 5 is the first film substrate layer with a thickness of 50-200um, more preferably 80-150um, more preferably 100-120um, The substrate of the first film substr...

Embodiment 2

[0047] In order to further adjust and optimize the structure and overall performance of the package front plate of the present invention, in this embodiment 2, on the basis of the package front plate of embodiment 1, the structure and its preparation process are improved as follows.

[0048] Preferably, on the basis of the composite film structure of the package front plate of Example 1, the upper surface of the first adhesive layer 2 is further composited with a fluorine film material layer with a thickness of 25um-50um; a fluorine film material layer The fluorine film materials are PVF, PVDF, ETFE or ECTFE fluorine film materials, with a light transmittance of more than 93%. More preferably, a PE protective film 11 is laminated on the lower surface of the silica gel layer 10.

[0049] The specific preparation steps of the composite film for the package front plate of Example 2 are:

[0050] On the basis of the preparation method of the composite film of the encapsulation front pla...

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PUM

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Abstract

The invention provides a packaging front plate, the packaging front panel is a composite film bonded on the upper surface of the solar cell module, having a high barrier effect and a high light transmittance, and is characterized in that the composite film comprises a first adhesive layer, a first water vapor barrier layer, a first modified primer coating, a first film substrate layer, a second adhesive layer, a second water vapor barrier layer, a second modified primer coating, a second film substrate layer, and a silica gel layer from top to bottom. The packaging front plate has lower watervapor transmittance (less than 10-6 g / m2day) and higher light transmittance (more than 95%), which can not only prolong the battery life, but also improve the power generation efficiency, and the product packaging process is simple and efficient, and improve the yield.

Description

Technical field [0001] The present invention relates to a solar cell packaging component, and more particularly to a packaging front plate for flexible solar cells and a preparation process thereof. Background technique [0002] At present, in solar cell modules, the packaging quality plays an important role in the service life of the battery. The front plate closed structure of the solar cell module is mainly used to insulate air and water vapor from penetrating into the cell module to protect the solar cell. [0003] As a new variety of solar cells, flexible thin-film solar cells have been paid more and more attention by people with advanced technology, excellent performance and wide range of uses. Due to the particular application environment of flexible thin-film solar modules, solar front panels are required to have certain light transmittance, aging resistance, insulation, self-cleaning, flame retardancy, and windability. At the same time, due to certain thin-film batteries ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/048H01L31/18Y02E10/50Y02P70/50
Inventor 逯平
Owner DONGJUN NEW ENERGY CO LTD