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High-efficiency solar cell back film and preparation method thereof

A solar cell, high-efficiency technology, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of high cost and expensive PVF film, and achieve the effect of excellent performance and simple production process

Inactive Publication Date: 2011-08-17
诸暨市枫华塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the PVF film is expensive and the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1, the preparation of high-efficiency solar back film

[0050] ① Mix 100 parts of HMWHDPE resin, 0.5 parts of β-(4-hydroxy-3,5 di-tert-butylphenyl) n-octadecyl propionate, 0.5 parts of heat stabilizer, 0.3 parts of light stabilizer 770, 0.5 parts 4.4 A pair of (2.2-dimethylbenzyl) diphenylamine, 0.5 parts of ultraviolet absorber, and 2.7 parts of titanium dioxide are mixed evenly, and after drying, they are heated and extruded by an extruder, and cast into a film. The film thickness is 0.08mm.

[0051] ② Evenly mix 100 parts of PET resin, 30 parts of glass fiber reinforcement, 1.5 parts of titanium dioxide, 1 part of anti-aging agent, 0.5 part of antioxidant, and 0.5 part of heat stabilizer, and heat and cast and extrude through a hot extruder after drying out, biaxially stretched into a base film.

[0052] ③Add 0.05 parts of light stabilizer to 10 parts of polyurethane glue and 3 parts of polyamide cured glue, and mix evenly. After surface treatment of the...

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Abstract

The invention relates to a high-efficiency solar cell back film. The back film is formed by compounding a modified high molecular weight high density polyethylene (HMWHDPE) film with the thickness of 0.08-0.10mm and a modified PET (polyethylene terephthalate) film with the thickness of 0.20-0.22mm. The back film has the following beneficial effects: the back film has a simple manufacturing process and excellent properties; and the solar cell panel packaged with the back film can resist high / low temperature (minus 60 DEG C-120 DEG C), water vapor and erosion of various corrosive gases and liquids, is free from delamination and crack and ensures the standard of stable use for many years.

Description

technical field [0001] The invention relates to a solar battery back film and a preparation method thereof. Background technique [0002] Solar cells are directly exposed to the atmosphere (such as the ground, roof, brackets, etc.), and must be eroded by corrosive gases and liquids such as high and low temperature, water vapor, acid and alkali, etc. If they cannot resist erosion, their photoelectric conversion efficiency will easily be greatly attenuated and become useless. value. Therefore, the encapsulation material of the solar cell is very important. In order to achieve the purpose of high and low temperature resistance, water vapor and corrosive gas and liquid resistance, glass, EVA film, battery silicon wafer group, EVA film, and TPT back film are generally used to form a solar panel through heating and lamination. In the prior art, the solar back film is usually made of composite PVF film / PET / PVF film. Among them, the PVF film is expensive and the cost is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18B32B27/08B32B27/32B32B27/36C08L23/04C08K13/02C08K3/22C08L67/02C08K13/04C08K7/14H01L31/049
CPCY02E10/50
Inventor 周立阳
Owner 诸暨市枫华塑胶科技有限公司
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