Solar cell back surface protective film, and solar cell module provided with same

A solar cell and back protective film technology, which is applied to electrical components, circuits, photovoltaic power generation, etc., can solve the problems of insufficient adhesion and long-term durability of the filling material, and achieve excellent weather resistance, heat resistance, and durability. Excellent impact effect

Inactive Publication Date: 2011-04-27
TECHNO POLYMER CO LTD
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Conventionally, films made of fluororesins, polyethylene resins, polyester resins, etc. are known as back protection films for solar cells, but these have insufficient adhesion to the filler portion and long-term durability

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 cell back surface protective film, and solar cell module provided with same
  • Solar cell back surface protective film, and solar cell module provided with same
  • Solar cell back surface protective film, and solar cell module provided with same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0313] image 3 The preparation method of Membrane 1C is exemplified below.

[0314] (1) After producing a single-layer film as described above using the first thermoplastic resin composition, the single-layer film and the water vapor barrier layer having a film 151 made of metal and / or a metal oxide and a resin layer 153 15 Methods of hot-melt bonding or dry lamination of forming materials (films) or bonding with adhesives

[0315] (2) After producing a single-layer film as described above using the first thermoplastic resin composition, a film made of metal and / or metal oxide is formed on the surface of the single-layer film, and then, the film is mixed with a thermoplastic resin Other methods of hot-melt bonding or dry lamination of films made from the composition or bonding with adhesives.

[0316] In addition, when the back surface protective film for solar cells of the present invention is a film having a first resin layer, a second resin layer, a third resin layer, an...

Embodiment 1-1

[0442] 30 parts of acrylic rubber-reinforced aromatic vinyl resin, 30 parts of acrylonitrile-styrene copolymer, acrylonitrile-styrene-N-phenylmaleimide copolymer A first raw material composition consisting of 40 parts, 0.3 parts of a silane coupling agent (x), and 20 parts of a white coloring agent was kneaded at 250° C. to obtain a first thermoplastic resin composition. Then, a T-die was used to obtain a single-layer type solar cell rear surface protective film (thickness: 400 μm) composed of the first thermoplastic resin composition. Various evaluations were performed on this back surface protective film for solar cells. The results are shown in Table 1.

Embodiment 1-2～1-9 and comparative example 1-1～1-5

[0444] Except having used the component described in Table 1 in a predetermined ratio, it carried out similarly to Example 1-1, and obtained the back surface protection film for single-layer type solar cells. Table 1 shows the kneading temperature and film thickness. Various evaluations were performed on this back surface protective film for solar cells. The results are listed in Table 1 together.

[0445]

[0446] As can be seen from Table 1, the back protective films for solar cells of Comparative Examples 1-1 to 1-5 using the first thermoplastic resin composition obtained by kneading the first raw material composition not mixed with a silane coupling agent were made of ethylene - In the adhesion of a film composed of a vinyl acetate copolymer, the peel strength was as low as 10 to 15N, and the adhesion was insufficient.

[0447] On the other hand, the back surface protection films for solar cells of Examples 1-1 to 1-9 using the first thermoplastic resin composition ob...

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

A solar cell back surface protective film is provided with a first resin layer obtained using a thermoplastic resin composition formed by melt-kneading a starting material composition that contains a thermoplastic resin and a silane coupling agent. The film can additionally be provided with another resin layer that is bonded to the first resin layer. The thickness is preferably 10-1000 [mu]m. A solar cell module is provided with the solar cell back surface protective film.

Description

technical field [0001] The present invention relates to a back protective film for a solar cell and a solar cell module having the same. More specifically, the present invention relates to a back protective film for a solar cell and a solar cell module using the same, the protective film comprising an ethylene-vinyl acetate copolymer combination objects, etc., and has excellent adhesion to the filler part of the solar cell module. Background technique [0002] In recent years, as one of power generation devices using clean energy, photovoltaic power generation systems including solar cell modules have been popularized. In a solar cell module, a plurality of plate-shaped solar cell elements are arranged, wired in series and in parallel, packaged and unitized to protect the elements. Moreover, the solar cell module is generally formed in a structure in which the direct sunlight surface of the solar cell element is covered with a glass plate, and the solar cell is filled with ...

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 Applications(China)
IPC IPC(8): H01L31/042
CPCY02E10/52H01L31/048H01L31/049Y02E10/50
Inventor 渡边笃史桥本昌典
Owner TECHNO POLYMER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap