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Solar cell back plate and preparation method thereof

A technology for solar cells and back sheets, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of complex production processes and high production costs of solar cell back sheets, and achieve simple production processes, stable mechanical strength, and easy implementation. Effect

Active Publication Date: 2012-04-18
合肥长阳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the defects of high production cost and complex production process of the existing solar cell backplane

Method used

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  • Solar cell back plate and preparation method thereof
  • Solar cell back plate and preparation method thereof
  • Solar cell back plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the weather-resistant layer 1 has a thickness of 20 microns, wherein the addition of the antioxidant diphenylamine is 1%, the addition of the anti-ultraviolet stabilizer UV-P is 0.5%, and the rest is PETG; the structural reinforcement layer 2 has a thickness of 150 Micron, the addition of titanium dioxide white pigment is 10%, the addition of antioxidant diphenylamine is 1%, the addition of anti-ultraviolet stabilizer UV-P is 0.5%, and the rest is PET; barrier layer 3, the thickness is 10 microns, vinyl The content is 20%, the addition of antioxidant diphenylamine is 1%, the addition of anti-ultraviolet stabilizer UV-P is 0.5%, and the rest is EVOH. The particle size of the titanium dioxide is 0.2um. The relevant parameters are shown in Table 1.

[0047] The specific preparation method is as follows:

[0048] (1), the components of the weather-resistant layer are uniformly mixed by a 100L high-mixer to make a mixed plastic A; the components...

Embodiment 2

[0053] Such as figure 1 As shown, the weather-resistant layer 1 has a thickness of 30 microns, wherein the addition of the antioxidant diphenylamine is 2%, the addition of the anti-ultraviolet stabilizer UV-P is 1%, and the rest is PETG; the structural reinforcement layer 2 has a thickness of 200 microns Micron, the addition of titanium dioxide white pigment is 20%, the addition of antioxidant diphenylamine is 2%, the addition of anti-ultraviolet stabilizer UV-P is 1%, and the rest is PET; the barrier layer 3, the thickness is 20 microns, vinyl The content is 30%, the addition of antioxidant diphenylamine is 2%, the addition of anti-ultraviolet stabilizer UV-P is 1%, and the rest is EVOH. The particle size of the titanium dioxide is 0.3um. The relevant parameters are shown in Table 1.

[0054] The specific preparation method is as follows:

[0055] The stretching temperature of the static stretching machine is 85° C., and other steps are the same as in Example 1.

Embodiment 3

[0057] Such as figure 1 As shown, the weather-resistant layer 1 has a thickness of 50 microns, wherein the addition of the antioxidant diphenylamine is 3%, the addition of the anti-ultraviolet stabilizer UV-P is 1.5%, and the rest is PETG; the structural reinforcement layer 2 has a thickness of 250 Micron, the addition of titanium dioxide white pigment is 30%, the addition of antioxidant diphenylamine is 3%, the addition of anti-ultraviolet stabilizer UV-P is 1.5%, and the rest is PET; barrier layer 3, thickness 50 microns, vinyl The content is 40%, the added amount of antioxidant p-phenylenediamine is 3%, the added amount of anti-ultraviolet stabilizer UV-531 is 1.5%, and the rest is EVOH. The particle size of the titanium dioxide may be 0.25um. The relevant parameters are shown in Table 1.

[0058] The specific preparation method is as follows:

[0059] The preparation method is the same as in Example 1, wherein the stretching temperature of the static stretching machine ...

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Abstract

The invention relates to the technical field of solar photovoltaic cells, in particular to a solar cell back plate and a preparation method thereof. In order to overcome the defects of higher production cost and complicated production process of the existing solar cell back plate, the invention provides the solar cell back plate and the preparation method thereof. The solar cell back plate provided by the invention structurally and sequentially comprises a weather resistance layer, a structure reinforcing layer and a blocking layer, only the three-layer structure is adopted, but the weather resistance and the blocking performance are better, the production cost is lower, the fluorine element is not contained, and the environment pollution cannot be caused. The preparation method of the solar cell back plate provided by the invention comprises three-layer coextrusion and two-way stretch process, the production process of the method is simple, and the implementation is easy.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic cells, in particular to a solar cell backboard and a preparation method thereof. Background technique [0002] As a clean, pollution-free and inexhaustible energy source, solar energy has attracted widespread attention. Solar cells are effective tools for converting solar energy directly into electrical energy. Since solar cells need to be eroded by natural factors such as rainwater and ultraviolet rays outdoors for a long time, it is very unfavorable to the service life of the solar cells. Therefore, how to improve the weather resistance of solar cell backsheets is the focus of current research. At present, the most mainstream backsheets are TPE from American Madico Company, TPT from European Isovolta Company, and THV / PET / EVA independently developed by Japan 3M Company containing THV (tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride) fluororesin. The backplane of the stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18B32B27/08B32B27/18H01L31/049
CPCY02E10/50Y02P70/50
Inventor 不公告发明人
Owner 合肥长阳新材料科技有限公司
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