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A packaging front panel and a preparation process thereof

A preparation process and front plate technology, which is applied in the field of solar cell packaging components, can solve the problems of complex packaging process, low yield rate, and expensive fluorine film, and achieve the effects of simple process steps, improved wear resistance, and dense coating

Pending Publication Date: 2018-12-25
DONGJUN NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some flexible packaging front plates use fluorine film materials, which have high aging resistance and can be used outdoors for more than 25 years. However, fluorine films are expensive, the packaging process is complicated, and the yield rate is low. Low service life, simple and efficient packaging process requirements

Method used

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

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Experimental program
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Embodiment 1

[0042] In this embodiment, the encapsulation front plate is composed of a composite film tightly covering the upper surface of the solar cell module, which is composed of multi-layer films. Wherein, 1 is an anti-sticking coating, the thickness is preferably 1-10um, more preferably 3-8um, more preferably 5um, which is distributed on the upper surface of the composite film of the front plate of the package, with anti-sticking, dustproof, self- Cleaning effect; 2 is frosted anti-aging coating, the thickness is preferably 1-10um, more preferably 3-8um, more preferably 5um, the specific composition of this layer preferably contains organic or inorganic frosted particles, for example, organic particles choose PMMA , PBMA, PDMS, the inorganic particles are SiO 2 、Al 2 o 3 , ZrO 2 , more preferably contains an anti-aging agent, and this layer has wear-resistant, scratch-resistant, and aging-resistant effects; 3 is the first film substrate layer, the thickness is preferably 50-200um...

Embodiment 2

[0052] In order to further adjust and optimize the structure and comprehensive performance of the flexible solar cell encapsulation front plate of the present invention, this embodiment 2 makes the following improvements to the structure and its preparation process on the basis of the encapsulation front plate in embodiment 1. Preferably, on the basis of the packaging front panel of Embodiment 1, the lower surface of the water vapor barrier layer 7 is compounded with the second adhesive film layer 8 .

[0053] More preferably, the lower surface of the second adhesive film layer 8 is compounded with a PE protective film 9 .

[0054] In this embodiment, the conceiver designed the water vapor barrier layer 7 so that it does not directly cover and contact with the solar battery module, and there is a layer of adhesive film 8 in between. On the one hand, it can prevent the water and gas generated by the battery module from damaging the water vapor barrier layer. On the other hand, ...

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Abstract

The invention provides an packaging front panel and a preparation process thereof, wherein the packaging front panel is a composite film bonded on the upper surface of a solar cell module, and the composite film comprises an anti-adhesion coating, an abrasive anti-aging layer, a first thin film base material layer, a first adhesive film layer, a second thin film base material layer, a modified undercoat layer and a water vapor barrier layer from top to bottom. The packaging front panel of the invention can meet the requirements of lower water vapor transmission rate and lower service life of mobile energy sources (less than 5 years), meanwhile, the surface of the flexible front panel is anti-fingerprint and anti-scratch, the packaging process is simple and efficient, and the material and process cost are low.

Description

technical field [0001] The invention relates to a solar cell packaging assembly, more particularly to a packaging front plate used in the field of flexible mobile solar cells and a preparation process thereof. Background technique [0002] At present, in solar cell modules, the quality of encapsulation plays an important role in the service life of the cell. The closed structure of the front plate of the solar cell module is mainly used to isolate the air and water vapor from penetrating into the cell module, and to protect the solar cell. The packaging material generally uses adhesive film mainly made of PVB and EVA. Its function is to fix the battery sheet and isolate air and water vapor to ensure a long service life after the battery is packaged. However, PVB and EVA materials have deficiencies in the comprehensive performance of solar cell sealing, and the water blocking performance is not good enough. After a certain period of time, water vapor will enter the interior ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCH01L31/0481Y02E10/50
Inventor 逯平
Owner DONGJUN NEW ENERGY CO LTD
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