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Solar energy battery back board packaging material and preparation method thereof

A technology for solar cells and packaging materials, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of complex preparation process and high cost, and achieve the effect of simple preparation process and excellent performance

Inactive Publication Date: 2010-02-17
周均华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The backplane of the solar cell adopts TPT packaging material, and its preparation process is complicated and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 Preparation of Solar Cell Backplane Encapsulation Material

[0034] (1) Mix 50kg of PET resin, 30kg of polyamide, 18kg of polyvinyl fluoride, 1kg of titanium dioxide, and 1kg of anti-aging agent, dry, heat and extrude, and form a base film through longitudinal stretching and transverse stretching; the base film The thickness is 0.15mm.

[0035] (2) Coating EVA resin on one side of the base film to obtain a finished solar cell backplane encapsulation material. The coating thickness of the EVA resin is 0.03mm.

Embodiment 2

[0036] Embodiment 2 Preparation of Solar Cell Backplane Encapsulation Material

[0037] (1) Mix 40kg of PET resin, 25kg of polyamide, 20kg of polyvinyl fluoride, 1.5kg of titanium dioxide, 1.5kg of antioxidant, and 0.3Kg of antioxidant, dry, heat and extrude, and stretch longitudinally and transversely into Basement film; the thickness of the basement film is 0.18mm.

[0038] (2) Coating EVA resin on one side of the base film to obtain a finished solar cell backplane encapsulation material. The coating thickness of the EVA resin is 0.03mm.

Embodiment 3

[0039] Embodiment 3 Preparation of Solar Cell Backplane Encapsulation Material

[0040] (1) Mix 60kg of PET resin, 35kg of polyamide, 22kg of polyvinyl fluoride, 1.5kg of titanium dioxide, and 1.5kg of anti-aging agent, dry, heat and extrude, and form a base film through longitudinal stretching and transverse stretching; The thickness of the basement film is 0.13mm.

[0041] (2) Coating EVA resin on one side of the base film to obtain a finished solar cell backplane encapsulation material. The coating thickness of the EVA resin is 0.04mm.

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Abstract

The invention relates to a solar cell backboard packaging material and preparing method thereof. Components and weight quotient of the solar cell backboard packaging material are: PET resin of 40-60 quotient, polyamide of 20-40 quotient, polyvinyl fluoride of 15-25 quotient, titanium pigment of 0.5-2 quotient, anti-aging agent of 0.5-2 quotient, and EVA resin of 10-30 quotient. The preparing method includes steps: (1) mixing the PET resin, the polyamide, the polyvinyl fluoride, the titanium pigment and the anti-aging agent equally, drying, heating, extruding, and stretching to basal film; (2)coating the EVA resin on one side of the basal film and obtaining the solar cell backboard packaging material. Advantages of the prepared solar cell backboard packaging material are simple preparing technique and excellent capability. Solar panel packaged by the solar cell backboard packaging material is high and low temperature resistant, acid and base resistant, wind drift sand resistant, not delaminated, not chapped, and not aging for 25 years.

Description

(1) Technical field [0001] The invention relates to a solar cell back panel packaging material and a preparation method thereof. (2) Background technology [0002] Solar cells are directly exposed to the atmosphere and must withstand high and low temperature and water vapor erosion. If it cannot resist corrosion, its photoelectric conversion performance will be easily attenuated and lose its practical value. Therefore, the research on solar cell packaging materials is very important and has attracted people's attention. In order to achieve the purpose of high and low temperature resistance and water vapor resistance, two pieces of EVA film are generally used to encapsulate the solar cell, and thermally bonded with the upper glass and the bottom TPT to form a solar panel. The backplane of the solar cell adopts TPT encapsulation material, and its preparation process is complicated and the cost is high. (3) Contents of the invention [0003] The technical problem to be solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/10C08L67/00C08L77/00C08K3/22H01L31/0203H01L31/18C08L23/08C08L27/14H01L31/049
CPCH01L31/049Y02E10/50
Inventor 周均华
Owner 周均华
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