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Back-contact solar cell double-glass assembly and manufacturing method thereof

A technology of solar cells and back-contact cells, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problem of difficult double-glass technology packaging, and achieve the effects of low material cost, easy industrialization, and simple process

Pending Publication Date: 2017-11-10
JIANGSU SUNPORT POWER CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing dual-glass components and technologies are basically designed for conventional H-type battery packaging, and it is generally considered difficult to achieve double-glass technology packaging for back-contact batteries. The interconnection of chips, and the conductive backplane is a composite of polymer back film and metal circuit, the two are inseparable, so it is not possible to simply replace the polymer back film with another layer of glass to make a double-glass component

Method used

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  • Back-contact solar cell double-glass assembly and manufacturing method thereof
  • Back-contact solar cell double-glass assembly and manufacturing method thereof
  • Back-contact solar cell double-glass assembly and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Back-contact solar cells The double-glass solar cell array consists of seven layers, specifically including the first glass layer 1, the metal conductive circuit core layer 2, the sealing insulation isolation material layer 3, and the conductive medium connection point layer stacked together from bottom to top. 4. The back contact cell layer 5 , the encapsulation material layer 6 and the second glass layer 7 . Several MWT back contact cells 10 such as figure 2 As shown, positive electrodes 9 and negative electrodes 8 are discretely distributed on the back of the battery sheet 10 . In the assembly production of such a back contact cell, the positive electrode 9 and the negative electrode 8 are connected with a conductor and packaged.

[0034] The core board layer 2 of the metal conductive circuit includes a bottom adhesive film and an upper metal circuit, and the metal circuit is adhered to the bottom adhesive film; the metal circuit is provided with conductive medium ...

Embodiment 2

[0042] Select a conductive copper core plate as the core plate of the conductive circuit, print or deposit the connection point of the conductive medium on the metal circuit, the position of the connection point of the conductive medium is the same as the positive and negative electrode points (9,8) on the back of the back contact solar cell Corresponding; lay a layer of sealing insulation isolation material layer 3 with several through holes on it, the number of through holes is consistent with the sum of the number of positive and negative electrodes of several batteries, and the position of the through holes needs to correspond to the positive and negative electrodes of the pre-arranged batteries Position, the hole diameter is 2mm, and the position of the through hole needs to correspond to the position of the conductive glue point (dielectric connection point) of the conductive core board when placing the sealing insulation isolation material layer 3 at the same time, so tha...

Embodiment 3

[0044] Prepare a piece of flat glass with a thickness of 2mm as the first glass layer 1, lay a metal conductive circuit core layer 2 on it, place it in the center, and then print or deposit a conductive medium connection point on the metal conductive circuit, and the conductive medium connection point is in contact with the back The positive and negative electrode points (9,8) on the back of the type solar cell correspond to each other; then place a sealing insulation isolation material layer 3 with a number of through holes on it, and the positions of the through holes need to correspond to the positive and negative electrode positions of the pre-arranged batteries , the hole diameter is 2.5mm, and when placing the sealing insulation isolation material layer 3 at the same time, the position of the through hole needs to correspond to the position of the conductive glue point (conductive medium connection point) one by one, so that the conductive medium connection point passes th...

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Abstract

The invention discloses a back-contact solar cell double-glass assembly and a manufacturing method thereof. The back-contact solar cell double-glass assembly comprises a first glass layer, a metal conducting circuit core board layer, a sealing insulating isolation material layer, a conducting medium connecting point layer, a back-contact battery cell layer, a packaging material layer and a second glass layer which are laminated together from bottom to top in sequence. According to the back-contact solar cell double-glass assembly and the manufacturing method thereof provided by the invention, the back-contact solar cell double-glass assembly is easy for industrialization, is low in manufacturing cost, high in yield and high in weather resistance, and has good economic and social benefits.

Description

technical field [0001] The invention relates to a back-contact solar cell double-glass assembly and a manufacturing method thereof, belonging to the technical field of MWT solar cell assembly applications. Background technique [0002] Conventional solar modules are generally single-glass structures: the front of the module is tempered glass, and the back is generally a polymer back film. Due to the disadvantages of high water permeability and easy wear of the polymer back film, photovoltaic modules are prone to problems in outdoor harsh environments, which affect their service life. Under this background, double-glass photovoltaic modules have emerged in recent years. It uses another Layered glass replaces the polymer backsheet, so that the front and back of the module are glass, the structure is symmetrical, the water resistance is better, the weather resistance of the module is better, and the actual outdoor service life is effectively extended. However, the existing dua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/0488Y02E10/50Y02P70/50
Inventor 张彩霞吴仕梁安欣睿逯好峰路忠林盛雯婷张凤鸣
Owner JIANGSU SUNPORT POWER CORP LTD
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