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Solar battery package material and solar battery

A solar cell and packaging material technology, applied in the field of solar cells, can solve the problems of reduced service life of solar cells, low reflectivity of solar cells, and high cost of fluorine-containing resin films, and achieve the effects of preventing degradation, reducing costs, and improving reflectivity

Active Publication Date: 2013-03-20
CHONGQING YUNTIANHUA HIGH END NEW MATERIALS DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common solar backsheet in the market is a three-layer structure composed of fluorine-containing resin films on both sides of the PET substrate. The PET substrate provides mechanical protection, electrical protection and water vapor barrier functions for the backsheet, but it is not durable. UV and easy-to-hydrolyze materials, so the TPT or KPK structure is obtained by compounding fluorine-containing resin films on both sides of the PET substrate. However, the cost of the fluorine-containing resin film is relatively high. Uncrosslinked and cured PE or EVA is used as a substitute to obtain a backsheet with TPE or KPE structure to block the environment, especially the degradation of PET substrates by UV
However, solar cells made of TPE or KPE structure backsheets have low reflectivity to sunlight, large power loss, and ultraviolet rays can easily reach the PET substrate, which will reduce the weather resistance of the backsheet and reduce the use of solar cells. life

Method used

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  • Solar battery package material and solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 100 parts by mass of EVA resin of Elvax150 produced by DuPont Company, 0.3 parts by mass of Tinuvin 770 produced by Ciba Company as UV stabilizer, 0.2 parts by mass of Naugard P produced by Uniroyal Company as antioxidant, 1.5 parts by mass of Lupersol1101 produced by Pennwalt Company As a cross-linking agent, it was mixed with 15 parts by mass of titanium dioxide of the type R-960 produced by Dupont Company to obtain a white EVA film, and the thickness of the white EVA film was 15 μm;

[0054] 100 parts by mass of EVA resin of Elvax150 produced by DuPont Company, 0.3 parts by mass of Tinuvin 770 produced by Ciba Company as UV stabilizer, 0.2 parts by mass of Naugard P produced by Uniroyal Company as antioxidant and 1.5 parts by mass of Lupersol1101 produced by Pennwalt Company Mixed as a cross-linking agent to obtain a transparent EVA film, the thickness of the transparent EVA film is 60 μm;

[0055]The transparent EVA film and the white EVA film are subjected to doubl...

Embodiment 2

[0064] 100 parts by mass of EVA resin with a melt index (190 ° C, 2.16 kg) produced by Samsung Total Petrochemical Company of 10 g / min and a vinyl acetate content of 28%, and 0.3 parts by mass of Chimassorb81 produced by Ciba Company as an ultraviolet stabilizer, 0.2 Parts by mass of di(octadecyl)thiodipropionate are used as an antioxidant, 1.5 parts by mass of Luperox TBEC produced by ARKEMA Company as a crosslinking agent and 15 parts by mass of titanium dioxide produced by Dupont Company as R-105 are mixed to prepare Obtain white EVA film, the thickness of white EVA film is 15 μ m;

[0065] 100 parts by mass of EVA resin with a melt index (190 °C, 2.16 kg) produced by Samsung Total Petrochemical Company of 10 g / min and a vinyl acetate content of 28%, 0.3 parts by mass of Chimassorb81 produced by Ciba Company as an ultraviolet stabilizer, 0.2 Parts by mass of di(octadecyl)thiodipropionate were mixed as an antioxidant and 1.5 parts by mass of Luperox TBEC produced by ARKEMA C...

Embodiment 3

[0075] The model that 100 mass parts DuPont companies produce is the EVA resin of Elvax150, the Tinuvin770 that 0.3 mass parts Ciba companies produce as ultraviolet stabilizer, the Naugard P that 0.2 mass parts Uniroyal companies produce as antioxidant, the Lupersol1101 that 1.5 mass parts Pennwalt companies produce As a cross-linking agent and 15 parts by mass of titanium dioxide produced by Dupont, the model is mixed with R-960 to prepare a white EVA film, and the thickness of the white EVA film is 15 μm;

[0076] The model that 100 mass parts DuPont companies produce is the EVA resin of Elvax150, the Tinuvin770 that 0.3 mass parts Ciba companies produce as ultraviolet stabilizer, the Naugard P that 0.2 mass parts Uniroyal companies produce as antioxidant and the Lupersol1101 that 1.5 mass parts Pennwalt companies produce Mixed as a cross-linking agent to obtain a transparent EVA film, the thickness of the transparent EVA film is 60 μm;

[0077] The transparent EVA film and ...

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Abstract

The invention provides a solar battery package material and a solar battery, wherein the solar battery package material comprises a transparent EVA (Ethylene-Vinyl Acetate) film, a white EVA film compounded on the transparent EVA film, and a back board compounded on the white EVA film; the back board comprises a PET (Poly Ethylene Terephthalate) substrate and a fluororesin-contained film composited on the PET substrate; the PET substrate is composited on the white EVA film; and the white EVA film is prepared by raw materials by weight part of: 100-200 parts of EVA resin, 0.1-3 parts of cross-linking agent, 0.1-0.5 part of antioxygen, 0.1-0.5 part of ultraviolet stabilizer and 5-30 parts of additive, wherein the additive is prepared by the components of: titanic oxides, silicon oxides, aluminous oxides or stannic oxides. The solar battery is packaged by the solar battery package material provided by the invention.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and particularly relates to a solar cell packaging material and a solar cell. Background technique [0002] Solar cells, also known as photovoltaic cells, are devices that directly convert light energy into electrical energy through the photoelectric effect or photochemical effect. At present, the application of solar cells has entered the fields of industry, commerce, agriculture, communications, household appliances and public facilities from the military and aerospace fields, especially in remote areas, mountains, deserts, islands and rural areas, in order to save expensive construction costs. transmission lines. [0003] According to the different materials used, solar cells can be divided into silicon solar cells, multi-component compound thin-film solar cells, polymer multilayer modified electrode solar cells, nanocrystalline solar cells, organic solar cells, etc. Among them, silicon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/36B32B27/32H01L31/048C08L23/08C08K13/02C08K3/22C08K3/34C09D127/16C09D127/12C09D127/18C09D7/12
CPCY02E10/50
Inventor 吕新坤古文正江林王永峰
Owner CHONGQING YUNTIANHUA HIGH END NEW MATERIALS DEV CO LTD
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