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A method for efficiently preparing polyvinyl butyral photovoltaic modules

A polyvinyl butyral and photovoltaic module technology, which is applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of lower yield, easy cracking, and cost reduction, so as to reduce the risk of damage and reduce production costs , the effect of maintaining a stable state and nature

Active Publication Date: 2022-05-13
嘉兴福盈复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For thin-film solar cells, since the cell sheet is laminated on a hard substrate, better results can be obtained by using this method, but for crystalline silicon solar cells, since there is no hard substrate as a support carrier, and solar cells are usually The selected crystalline silicon cell is 200 micron level, which is prone to cracks and other problems after being subjected to pressure, resulting in a significant reduction in yield and the goal of reducing costs cannot be achieved

Method used

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  • A method for efficiently preparing polyvinyl butyral photovoltaic modules
  • A method for efficiently preparing polyvinyl butyral photovoltaic modules
  • A method for efficiently preparing polyvinyl butyral photovoltaic modules

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Experimental program
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Effect test

Embodiment 1

[0041] The lamination process parameters are as follows: vacuuming time 300s, lamination time 300s, lamination temperature 160°C, lamination pressure 50kPa; rolling process parameters are controlled as follows: the Shore hardness of the rubber roller used is 65 degrees, and the photovoltaic modules pass through the pressing roller. The speed is 1.0m / min, the rolling temperature is 180℃, and the rolling pressure is 0.2MPa.

Embodiment 2

[0043] The lamination process parameters are as follows: vacuuming time 300s, lamination time 300s, lamination temperature 160°C, lamination pressure 50kPa; rolling process parameters are controlled as follows: the Shore hardness of the rubber roller used is 65 degrees, and the photovoltaic modules pass through the pressing roller. The speed is 1.0m / min, the rolling temperature is 180℃, and the rolling pressure is 0.3MPa.

Embodiment 3

[0045] The lamination process parameters are as follows: vacuuming time 300s, lamination time 300s, lamination temperature 160°C, lamination pressure 50kPa; rolling process parameters are controlled as follows: the Shore hardness of the rubber roller used is 65 degrees, and the photovoltaic modules pass through the pressing roller. The speed is 1.0m / min, the rolling temperature is 180℃, and the rolling pressure is 0.4MPa.

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Abstract

The invention provides a method for efficiently preparing polyvinyl butyral (PVB) photovoltaic components. In this method, the laminated PVB photovoltaic module precursor is first placed in a laminator, and the air between the layers of the photovoltaic module is removed through vacuuming and lamination, and then the photovoltaic module processed by the laminator is transferred to the In the heating box, the PVB film is melted at high temperature, and the photovoltaic module is roll-formed with a hot pressing roller in the heating box. This method uses hot pressing roller equipment to replace the autoclave commonly used in the production of photovoltaic modules at present, avoids the problem that the autoclave positive pressure process takes too long, improves the production efficiency and yield of PVB photovoltaic modules, and effectively reduces the cost of PVB photovoltaic modules. production costs and prices. At the same time, the invention improves the parameters of temperature, pressure, rolling speed and roller hardness in the hot rolling process, so that the yield of the method is improved, and the problem of damage to the photovoltaic module caused by the rolling process is avoided.

Description

technical field [0001] The invention relates to a method for efficiently preparing a polyvinyl butyral photovoltaic module, and belongs to the technical field of photovoltaic module preparation. technical background [0002] At first, when ethylene-vinyl acetate polymer (EVA) film was not yet on the rise, the earliest photovoltaic modules used polyvinyl butyral (PVB) film as the encapsulation layer. The price of PVB film was relatively expensive, which made the price of photovoltaic modules. higher. With the emergence of cost reduction requirements, researchers gradually found that the use of EVA as an encapsulation layer can greatly reduce the cost of component manufacturing, and many component manufacturers turned to EVA film with a price advantage. But gradually with the improvement of performance requirements in practical applications, people realize that the irreversible damage caused by the aging of EVA film has a great impact on the power and safety performance of mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/048H01L31/186Y02E10/50Y02P70/50
Inventor 陶静叶卫民
Owner 嘉兴福盈复合材料有限公司