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Solar battery rear panel and production method

A technology of solar cells and production methods, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of low service life and unfavorable processing of solar cell backplanes, and achieve improved overall mechanical properties, good adhesion, easy processing effect

Active Publication Date: 2013-08-07
苏州卫优知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the existing solar battery backplane has a low service life and is not conducive to processing, thereby providing a solar battery backplane and a production method

Method used

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  • Solar battery rear panel and production method

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Embodiment Construction

[0021] like figure 1 As shown, the solar battery back sheet includes a PET substrate 1, the reverse side of the PET substrate 1 is provided with a modified PA6 film layer 3 pasted by an adhesive layer I2, and the front side of the PET substrate 1 is provided with a The modified PE film layer 5 attached to the agent layer II4, the thickness of the modified PA6 film layer 3 is 25 μm, which provides better mechanical properties, electrical insulation properties, water vapor barrier properties and weather resistance for the backplane. The modified PE film layer 5 is an oxygen-resistant, ultraviolet-resistant and hydrolysis-resistant polyethylene film. The thickness of the modified PE film layer 5 is 30 μm, which can well absorb ultraviolet rays from sunlight and prevent water vapor and air from entering the interior of the module. The thickness of the adhesive layer I2 and the thickness of the adhesive layer II4 are both 10 μm, which is convenient for bonding, has good bonding eff...

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Abstract

The invention relates to a solar battery rear panel comprising a PET (polyethylene terephthalate) substrate. A modified PA6 (polyamide 6) film layer adhered by an adhesive layer I is arranged on the reverse side of the PET substrate. A modified PE (polyethylene) film adhered by an adhesive layer II is arranged on the front side of the PET substrate. A production method of the solar battery rear panel includes preparing adhesive compound, spreading the adhesive compound, drying the adhesive compound, compounding, rolling, cutting and checking the modified PA6 film and the modified PE film. The solar battery rear panel and the production method have the advantages that the modified PA6 film is adopted to be an outer protective layer of the solar battery rear panel, the PA6 film has good mechanical property, heat resistance, wear resistance, chemical resistance, puncture resistance, barrier property to oxygen and carbon dioxide, electrical insulating property and fire resistance, and is easy to process, and adhesive force of the modified PA6 film and the PET substrate is good, so that the overall mechanical property, electrical insulating property and scratch resistance of the rear panel are improved, the rear panel is easy to process, and the service life of the rear panel is prolonged.

Description

technical field [0001] The invention relates to a solar cell backboard and a production method. Background technique [0002] The role of the solar battery backsheet is to provide excellent UV resistance, aging resistance, weather resistance and electrical insulation properties for the battery components, which play a key role in the service life, output power, safety and reliability of the battery, and determine the quality of the backsheet The key lies in the characteristics of the outer protective layer. Among the backplanes currently used on the market, most of the outer protective layers use fluorine coating or fluorine film. The widely used fluorine coatings mainly include PTFE and FEVE. The fluorine film mainly There are two types of PVF and PVDF. China Patent No. 201110385024X discloses a solar battery backsheet. The outer protective layer is made of PVDF film layer. The fluorine content directly affects the performance indicators of the backsheet. Traditional fluori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048B32B27/08H01L31/18H01L31/049
CPCY02E10/50H01L31/049
Inventor 顾建平
Owner 苏州卫优知识产权运营有限公司