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Insulating luminescent material, solar battery back plate comprising insulating luminescent material, and solar battery component

A technology of solar cells and luminescent materials, which is applied in the field of solar cell backplanes and solar cell components, can solve problems such as the power reduction of solar cell components, and achieve a wide range of applications

Inactive Publication Date: 2014-03-05
YINGLI ENERGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an insulating luminescent material and a solar cell back sheet and a solar cell assembly including the same, so as to solve the problem in the prior art that the power of the solar cell assembly decreases due to the temperature rise of the back sheet

Method used

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  • Insulating luminescent material, solar battery back plate comprising insulating luminescent material, and solar battery component
  • Insulating luminescent material, solar battery back plate comprising insulating luminescent material, and solar battery component
  • Insulating luminescent material, solar battery back plate comprising insulating luminescent material, and solar battery component

Examples

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Embodiment 1

[0056] Polyethylene terephthalate resin (weight-average molecular weight 22000-24000, density 1.38-1.40g / cm 3 ), titanium dioxide powder and CaBaS 2 :MnO 2 , Eu 2+ The powder was melted at 280°C and casted on a metal drum to prepare an unstretched substrate with a thickness of 3 mm, then stretched 3 times longitudinally at 90°C, stretched 3 times transversely at 120°C, and heat-fixed at 220°C for 12 min. Anneal at 200°C for 12 minutes, and corona treatment is performed on the surface of the film to obtain a long-lasting luminous film with a thickness of 180 μm. PVDF with a thickness of 30 μm and a methacrylic acid polymer film with a thickness of 5 μm (weight average molecular weight 3000-4000 , Density 1.15~1.2g / cm 3 ), a long-lasting luminous film with a thickness of 180 μm, a methacrylic polymer film with a thickness of 5 μm (weight average molecular weight 3000-4000, density 1.15-1.2 g / cm 3 ) and an EVA film with a thickness of 25 μm are arranged sequentially to make t...

Embodiment 2

[0058] Polyethylene terephthalate resin (weight-average molecular weight 22000-24000, density 1.38-1.40g / cm 3 ), titanium dioxide powder and CaBaS 2 :MnO 2 , Eu 2+ The powder was melted at 280°C and casted on a metal drum to prepare an unstretched substrate with a thickness of 3.5 mm, then stretched 3.2 times longitudinally at 90°C, stretched 3.2 times transversely at 120°C, and heat-fixed at 220°C for 12 min , annealed at 200°C for 12min, and corona treatment was performed on the surface of the film to obtain a long-lasting luminescent film with a thickness of 185 μm. ~5000, density 1.15~1.2g / cm 3 ), a long afterglow luminous film with a thickness of 180 μm, a methacrylic polymer film with a thickness of 5 μm (weight average molecular weight 4000-5000, density 1.15-1.2 g / cm 3 ) and an EVA film with a thickness of 25 μm were arranged sequentially to make the solar battery back sheet of Example 2 by rolling.

Embodiment 3

[0060] High-density polyethylene (weight-average molecular weight 200,000-250,000, density 0.96-1g / cm 3 ), titanium dioxide powder and SrBaS 2 :MnO 2 , Eu 2+ The powder was melted at 280°C and casted on a metal drum to prepare an unstretched substrate with a thickness of 3.5 mm, then stretched 3.2 times longitudinally at 90°C, stretched 3.2 times transversely at 120°C, and heat-fixed at 220°C for 12 min , annealed at 200°C for 12min, and corona treatment was performed on the surface of the film to obtain a long-lasting luminescent film with a thickness of 185 μm. ~5000, density 1.15~1.2g / cm 3 ), a long afterglow luminous film with a thickness of 180 μm, a methacrylic polymer film with a thickness of 5 μm (weight average molecular weight 4000-5000, density 1.15-1.2 g / cm 3 ) and an EVA film with a thickness of 25 μm are arranged sequentially to make the solar battery back sheet of Example 3 by rolling.

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Abstract

The invention provides an insulating luminescent material, a solar battery back plate comprising the insulating luminescent material, and a solar battery component. The insulating luminescent material comprises an insulating substrate, an ultraviolet absorbing material and a long afterglow luminescent material. The insulating luminescent material has the characteristic of storing photons as comprising the long afterglow luminescent material and can be used as a night luminescent material; moreover, the insulating luminescent material contains the ultraviolet absorbing material, so that ultraviolet rays can be prevented from aging a device with the insulating luminescent material; meanwhile, as containing the insulating substrate, the insulating luminescent material is particularly suitable for light-emitting equipment, power generating equipment and the like and has a wide application range; particularly, when the insulating luminescent material is used for making the solar battery back plate, the temperature of the solar battery back plate is reduced, and the power output efficiency of the solar battery component is improved.

Description

technical field [0001] The invention relates to the field of solar cell production, in particular to an insulating luminescent material and a solar cell back plate and a solar cell module including the same. Background technique [0002] A solar cell module is a device that absorbs sunlight and converts it into electrical energy. Because it can effectively reduce carbon dioxide emissions, its position in the global energy strategy is becoming more and more important. A solar cell module generally consists of a transparent front cover, battery cells, encapsulation materials, and a back sheet for protecting the battery cells and encapsulation materials. [0003] In addition, since the backplane has been irradiated by the light from the back and the light not absorbed by the solar energy for a long time, the backplane partly absorbs this part of the light and converts part of it into heat, which causes the temperature of the backplane to rise, eventually causing the solar cell ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06C08L67/02C08L23/06C08K3/22C09K11/56C09K11/84C09K11/59C09K11/64H01L31/049
CPCY02E10/50
Inventor 韩帅倪健雄于波郑炯陈坤杜小洞田树全
Owner YINGLI ENERGY CHINA
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