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Method for manufacturing photovoltaic cell panel

A technology of photovoltaic panels and photovoltaic cells, which is applied in the direction of circuits, electrical components, semiconductor devices, etc., can solve problems such as fragile, and achieve the effect of not easy to crack and uniform pressure

Active Publication Date: 2010-09-08
YINGLI ENERGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, during the lamination process, photovoltaic panels will be subject to certain pressure and are easily broken

Method used

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  • Method for manufacturing photovoltaic cell panel
  • Method for manufacturing photovoltaic cell panel
  • Method for manufacturing photovoltaic cell panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]1) The UV curing material used in this embodiment includes: 80wt% polyurethane acrylate, 4wt% 2,2-diethylacetophenone as initiator, 3wt% polyacrylate as leveling agent, 3wt% silicon Ketones as defoamers;

[0042] 2) Apply the above-mentioned UV curable material on the photovoltaic cell string and two glass substrates welded by a plurality of photovoltaic cell sheets;

[0043] 3) Assemble the photovoltaic cell string and two substrates into figure 1 The photovoltaic cell assembly shown, the photovoltaic cell assembly is a hyperboloid shape;

[0044] 4) Place the photovoltaic cell assembly in a vacuum at room temperature for vacuum treatment for 30 minutes, with a vacuum degree of 100 Pa;

[0045] 5) Irradiating the photovoltaic cell assembly in the vacuum vessel with 365nm ultraviolet light for 20 minutes to cure the UV curable material to form a photovoltaic cell panel.

Embodiment 2

[0047] 1) The UV curing material used in this embodiment includes: 80wt% polyester acrylate, 3wt% 4-bromoacetophenone as initiator, 2wt% polyacrylate as leveling agent, 3wt% silicone as disinfectant foaming agent;

[0048] 2) Apply the above-mentioned UV curable material on the photovoltaic cell string and two glass substrates welded by a plurality of photovoltaic cell sheets;

[0049] 3) Assemble the photovoltaic cell string and two substrates into figure 1 The photovoltaic cell assembly shown, the photovoltaic cell assembly is a hyperboloid shape;

[0050] 4) Place the photovoltaic cell assembly in a vacuum at room temperature for vacuum treatment for 35 minutes, with a vacuum degree of 100 Pa;

[0051] 5) Irradiating the photovoltaic cell assembly in the vacuum vessel with 365nm ultraviolet light for 20 minutes to cure the UV curable material to form a photovoltaic cell panel.

Embodiment 3

[0053] 1) The UV curing material used in this embodiment includes: 80wt% polyether acrylate, 4wt% 4-allyl acetophenone as initiator, 3wt% polyacrylate as leveling agent, 3wt% silicone as a defoamer;

[0054] 2) Apply the above-mentioned UV curable material on the photovoltaic cell string and two glass substrates welded by a plurality of photovoltaic cell sheets;

[0055] 3) Assemble the photovoltaic cell string and two substrates into figure 1 The photovoltaic cell assembly shown, the photovoltaic cell assembly is a hyperboloid shape;

[0056] 4) Place the photovoltaic cell assembly in a vacuum at room temperature for vacuum treatment for 40 minutes, with a vacuum degree of 100 Pa;

[0057] 5) Irradiating the photovoltaic cell assembly in the vacuum vessel with 365nm ultraviolet light for 20 minutes to cure the UV curable material to form a photovoltaic cell panel.

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Abstract

The invention provides a method for manufacturing a photovoltaic cell panel. The method comprises the following steps of: coating a UV cured material on a photovoltaic cell plate and a substrate; assembling the photovoltaic cell plate and the substrate coated with the UV cured material into a photovoltaic cell assembly; performing vacuum treatment on the photovoltaic cell assembly; and curing the UV cured material in the photovoltaic cell assembly to obtain the photovoltaic cell panel. Compared with the photovoltaic cell panel in the prior art, the photovoltaic cell panel of the invention uses the UV cured material as an adhesive to replace a traditional EVA hot melt adhesive; and therefore, the photovoltaic cell assembly can be assembled into any curved surface shape and the photovoltaic cell assembly can be obtained by curing the photovoltaic cell plate through UV. In addition, the photovoltaic cell assembly is molded by vacuum negative pressure rather than lamination, so that pressure applied to the photovoltaic cell plate is uniform, and cracks of the cell plate are not easy to cause.

Description

technical field [0001] The invention relates to the field of photovoltaic cells, in particular to a method for manufacturing a photovoltaic cell panel. Background technique [0002] Solar photovoltaic cells, referred to as photovoltaic cells, are used to directly convert the sun's light energy into electrical energy. Compared with conventional energy sources, photovoltaic cells are a renewable and clean energy source, which is beneficial to environmental protection and can save expensive transmission lines, so photovoltaic cells have broad application prospects. [0003] Under the existing technology, the manufacturing process of photovoltaic cell panels mainly includes the following steps: after producing photovoltaic cell sheets with silicon as the main component, connecting multiple photovoltaic cell sheets in series to form a battery string, and then taking glass plates, The coating is assembled into a photovoltaic cell assembly, and the photovoltaic cell assembly is pu...

Claims

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Application Information

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IPC IPC(8): H01L31/18
Inventor 王士元
Owner YINGLI ENERGY CHINA
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