Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of solar cell encapsulant structure and preparation method thereof

A technology of solar cells and encapsulation glue, which is applied in the direction of circuits, adhesives, electronic equipment, etc., can solve the problems of increasing the optical path of incident light, reducing the reflection effect of reflective materials, and high cost, so as to achieve low material cost, low equipment cost, and avoid The effect of equipment investment

Active Publication Date: 2016-07-13
仇桂芬
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can also avoid overflow very well, but the disadvantage is that, on the one hand, non-woven fabrics are made of polymers processed into fibers and then processed later, the cost is relatively high, and most non-woven fabric fibers are easy to bend. It is easy to deform when pulled, and it is difficult to avoid the generation of lines or patterns when laminating
In addition, a layer of transparent EVA film is added on the surface of the non-woven fabric to increase the optical path of the incident light. ) reduces the reflective effect of the reflective material
In addition, non-woven fabrics are highly crystalline materials, which are difficult to integrate with encapsulants and will introduce weak links

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of solar cell encapsulant structure and preparation method thereof
  • A kind of solar cell encapsulant structure and preparation method thereof
  • A kind of solar cell encapsulant structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A solar cell sheet encapsulation adhesive structure sequentially includes an encapsulation adhesive layer and a barrier film layer. The barrier film and the encapsulation adhesive layer are combined together. When laminating, the barrier film surface is close to the battery sheet, and the encapsulation adhesive layer is close to the backplane side. The fluidity of the barrier film is lower than that of the encapsulation adhesive layer, and the encapsulation adhesive layer is made of white EVA, and the entire body composed of the barrier film and the encapsulation adhesive is used as the whole of the back encapsulation adhesive.

[0038] preparation:

[0039] In terms of parts by mass, 100 parts of vinyl acetate content is 32wt%, MI is 40g / 10min of EVA pellets, 6 parts of rutile titanium dioxide (DuPont R105), 0.5 part of γ-methacryloxypropyl trimethoxy silane, 1.5 parts tert-butyl-(2-ethylhexyl) monoperoxycarbonate, 1 part triallyl isocyanurate, 0.2 parts 2-hydroxy-4-n...

Embodiment 2

[0045] A solar cell sheet encapsulation adhesive structure, comprising a layer of barrier film on the side close to the cell sheet and an encapsulation adhesive layer on the side close to the back plate or glass. The barrier film is combined with the encapsulation adhesive layer. The fluidity of the barrier film is less than that of the encapsulation adhesive layer. The encapsulation adhesive layer is made of white EVA. The overall glue is selected from the transparent EVA film on the market, such as Foster F806. The barrier film side is close to the cell sheet during lamination.

[0046] preparation:

[0047] In terms of parts by mass, 100 parts of vinyl acetate content is 32wt%, MI is 40g / 10min of EVA pellets, 6 parts of rutile titanium dioxide, 0.5 part of γ-methacryloxypropyl trimethoxysilane, 1.5 1 part of tert-butyl-(2-ethylhexyl) monoperoxycarbonate, 1 part of triallyl isocyanurate, 0.2 part of 2-hydroxy-4-n-octyloxybenzophenone after mixing machine to mix evenly, as...

Embodiment 3

[0053] A solar cell encapsulation adhesive structure, comprising a barrier film on the side of the cell, an encapsulation adhesive layer on the side of the back plate or glass, and an adhesive layer distributed on the side of the barrier film close to the cell. The barrier film is combined with the encapsulation adhesive layer and the adhesive layer. The fluidity of the barrier film is less than that of the encapsulation adhesive layer and the adhesive layer. The encapsulation adhesive layer is made of white EVA. With the barrier film, the adhesive layer and the The package formed by the package is used as the whole of the package on the back, and the package on the light-facing side is made of transparent EVA film on the market, such as Foster F806. The adhesive layer is placed close to the cells during lamination.

[0054] preparation:

[0055] In terms of parts by mass, 100 parts of vinyl acetate content is 32wt%, MI is 40g / 10min of EVA pellets, add 6 parts of rutile titan...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a solar cell encapsulant structure and a method for manufacturing the same. The solar cell encapsulant structure comprises an encapsulant layer and at least one layer of functional film, or comprises an encapsulant layer, at least one layer of functional film, and at least one transition layer close next to the functional film. The functional film is combined with the encapsulant layer, or the functional film is combined with the encapsulant layer and the transition layer. The fluidity of the functional film is less than that of the encapsulant layer. In the present invention, a layer of functional film having relatively low fluidity is combined with an encapsulant film; because the fluidity of the functional film is lower than that of the encapsulant film, it is more difficult for the functional film to overflow than it is for an encapsulant, and there is a very desirable effect of inhibiting an encapsulant having relatively high fluidity from overflowing.

Description

technical field [0001] The invention relates to an adhesive film structure, in particular to an adhesive structure for encapsulating solar cells and a preparation method thereof. Background technique [0002] Since the encapsulant on the back of the solar cell does not require high light transmission performance, an adhesive film with a low light transmission rate can be used, or some fillers can be added to increase the function and reduce the cost. For example, use glue with lower light transmittance to reduce costs while protecting the backplane and reduce the damage of ultraviolet rays to the backplane; add fillers with high reflectivity, such as TiO 2 The filler improves its reflectivity, thereby reflecting sunlight and being reabsorbed by the battery, increasing the power of the solar cell; adding thermally conductive fillers to improve the thermal conductivity of the backside encapsulant, reducing the impact of temperature on the efficiency of the battery, and so on. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02H01L31/048
CPCB32B27/32B32B7/12B32B27/304B32B27/306B32B2457/12H01L31/0481Y02E10/50
Inventor 仇桂芬
Owner 仇桂芬
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement