Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Solar battery backplane and preparation method thereof

A solar cell and backplane technology, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve problems such as insufficient bonding strength, difficult bonding, and low surface energy, and achieve novel structures and simplified production processes , excellent performance

Inactive Publication Date: 2013-01-02
宁波威克丽特功能塑料有限公司
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the fluorine-containing backsheet has excellent weather resistance, due to its relatively low surface energy, it has obvious non-stick properties, and the glue is not easy to spread on its surface, so it is very difficult to bond with other plastics, even if the surface of the fluorine material is treated. After that, the bond strength is still not ideal
Therefore, many companies are committed to the research of fluorine-free backsheets. At present, the main manufacturers are Japanese companies. Among them, the most critical material for fluorine-free backsheets is the outermost hydrolysis-resistant PET film. PET is a kind of polyester. There are a large number of benzene ring structures in the molecular structure, so it has good UV resistance, but because of the ester group, it is very easy to hydrolyze and gradually lose its performance

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
  • Solar battery backplane and preparation method thereof
  • Solar battery backplane and preparation method thereof
  • Solar battery backplane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A layer of POE adhesive film is hot-pressed on the surface of the hydrolysis-resistant PET film to obtain a composite film for a solar cell back sheet.

[0061] The prepared solar battery back sheet film is composed of two layers of materials: a 500 micron thick PET film and a 500 micron thick POE adhesive film. The POE film layer is composed of the following components in parts by weight: 100 parts of POE resin, 5 parts of POE grafted maleic anhydride copolymer, 0.05 part of initiator dicumyl peroxide, 2 parts of ultraviolet light absorber -Hydroxy-4-methoxybenzophenone 0.1 part, UV light stabilizer bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate 0.1 0.2 parts of antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) stearyl propionate. The preparation method of POE film is as follows: mix the raw materials evenly and put them into the extruder for kneading. The temperature of the extruder is controlled at 60°C. Carry out shaping, and finally go through the win...

Embodiment 2

[0063] A layer of POE adhesive film is hot-pressed on the surface of the hydrolysis-resistant PET film to obtain a composite film for a solar cell back sheet.

[0064] The obtained solar battery back sheet film is composed of the following two layers of materials: a 500 micron thick PET film and a 500 micron thick POE adhesive film. The POE film layer is composed of the following components in parts by weight: 100 parts of POE resin, 10 parts of POE grafted maleic anhydride copolymer, 0.1 part of initiator dicumyl peroxide, 2 parts of ultraviolet light absorber -Hydroxy-4-n-octyloxybenzophenone 0.1 part, UV light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate 0.1 part, antioxidant β -0.1 part of stearyl (3,5-di-tert-butyl-4-hydroxyphenyl)propionate. The preparation method of POE film is as follows: mix all the raw materials evenly and put them into the extruder for kneading. The temperature of the extruder is controlled at 150°C. Carry out shaping, and finally go...

Embodiment 3

[0066] A layer of POE adhesive film is hot-pressed on the surface of the hydrolysis-resistant PET film to obtain a composite film for a solar cell back sheet. The obtained solar battery back sheet film is composed of the following two layers of materials: a PET film with a thickness of 500 microns and a POE adhesive film with a thickness of 400 microns. The POE film layer is composed of the following components in parts by weight: 100 parts of POE resin, 20 parts of POE grafted maleic anhydride copolymer, 3 parts of initiator dicumyl peroxide, 2 parts of ultraviolet light absorber - 3 parts of hydroxy-4-methoxybenzophenone, 1 part of bis(2,2,6,6-tetramethyl-4 piperidinyl) sebacate of UV light stabilizer, 1 part of antioxidant tri( 1 part of 2,4-di-tert-butylphenol) phosphite. The preparation method of POE film is as follows: mix all the raw materials evenly and put them into the extruder for kneading. The temperature of the extruder is controlled at 120°C. Carry out shaping,...

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

No PUM Login to View More

Abstract

The invention relates to a solar battery backplane and a preparation method thereof. The backplane comprises an anti-hydrolysis PET layer and a POE film layer. The POE film layer comprises the components of, by weight: 100 parts of POE, 1-50 parts of POE-grafted maleic anhydride copolymer, 0.01-5 parts of an initiator, 0.01-5 parts of an ultraviolet light absorber, 0.01-5 parts of an ultraviolet light stabilizer, and 0.01-5 parts of an antioxidant. The preparation method comprises the step that: a POE film is hot-presses on the surface of an anti-hydrolysis PET film, such that the solar battery backplane is obtained. The structure of the solar battery backplane provided by the invention is simple. During application, the solar battery backplane can be directly laminated with a battery sheet, and an additional ethylene-vinyl acetate film as a connection layer for bonding the backplane and the battery sheet is not needed. With the preparation method, production process is simplified, production cost is reduced, and a wide application prospect is provided.

Description

technical field [0001] The invention belongs to the field of solar cell materials and its preparation, and in particular relates to a solar cell backboard and a preparation method thereof. Background technique [0002] The solar cell backsheet is an integral part of the solar cell. The backsheet is the protective material on the back of the cell panel, used to support and fix the solar cell, and has the ability to continuously resist light exposure. The reliability of solar cells depends heavily on the reliability of the backsheet. [0003] At present, the back sheets of commonly used solar cells all use fluoroplastics as the outermost weather-resistant layer. The most commercialized fluoroplastic film on the market is DuPont’s PVF film, trade name Tedler, used to prepare TPT structure (T refers to DuPont's Tedler film, P refers to polyethylene terephthalate (PET) film, so TPT refers to the PVF / PET / PVF structure, and the three-layer film is bonded with a suitable adhesive) ...

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
IPC IPC(8): C09J123/08C09J123/20C09J151/06C09J11/06B32B27/06B32B27/36H01L31/048H01L31/18H01L31/049
CPCY02E10/50Y02P70/50
Inventor 张发饶
Owner 宁波威克丽特功能塑料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com