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Double-faced electricity-generating double-glass module

A double-glass module and double-sided technology, applied in the field of solar cells, can solve the problem that double-glass modules cannot make full use of light, and achieve the effect of not being prone to hot spot effects and uniform distribution

Inactive Publication Date: 2016-04-20
CHANGZHOU ALMADEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defect that the double-glass components in the prior art cannot make full use of light, and provide a double-sided power generation double-glass component

Method used

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  • Double-faced electricity-generating double-glass module
  • Double-faced electricity-generating double-glass module
  • Double-faced electricity-generating double-glass module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 and 2 As shown, a double-sided power generation double-glass module includes front glass 1, encapsulation layer 2, double-sided power generation cell sheet 3, encapsulation layer 2 and back glass 4 from top to bottom, and the front glass 1 is embossed Toughened glass, the back glass 4 is coated with a reflective layer 41, and the reflective layer 41 is coated in the gap between the double-sided power generation battery sheets 3 to form a grid. The thickness of the front glass 1 is 2.0 mm, and the surface of the front glass 1 is coated with an anti-reflection film; the thickness of the back glass 4 is 2.0 mm, such as image 3 As shown, the reflective layer 41 extends to the bottom of the double-sided power generating cell 3 , and the area of ​​the reflective layer 41 at the bottom of the double-sided power generating cell 3 is 1-9% of the area of ​​the double-sided power generating cell 3 . In this application, POE is used as the material of the packaging...

Embodiment 2

[0037] In Example 1, the front glass 1 is replaced with anti-reflection coated embossed tempered glass with a thickness of 0.2 mm, and the back glass 4 is replaced with tempered glass with a thickness of 2.5 mm. Other structures are with embodiment 1.

[0038] After testing, under the same conditions (positive glass 1, double-sided power generation cells 3, and packaging materials are the same), the overall efficiency of the double-glass module coated with grid-shaped reflective layer back glass 4 is higher than that of ordinary float back glass without reflective layer The comprehensive power gain of 4 double-glass modules is 1.512W.

Embodiment 3

[0040] In Example 1, the front glass 1 is replaced with anti-reflection coated embossed tempered glass with a thickness of 3.2 mm, and the back glass 4 is replaced with tempered glass with a thickness of 1.6 mm. Other structures are with embodiment 1.

[0041] After testing, under the same conditions (positive glass 1, double-sided power generation cells 3, and packaging materials are the same), the overall efficiency of the double-glass module coated with grid-shaped reflective layer back glass 4 is higher than that of ordinary float back glass without reflective layer The comprehensive power gain of 4 double-glass modules is 1.455W.

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Abstract

The invention belongs to the technical field of solar cells and provides a double-faced electricity-generating double-glass module. The module comprises front glass, a packaging layer, a double-faced electricity-generating battery piece, a packaging layer and back glass in sequence from top to bottom, the front glass is embossing toughened glass, the back glass is coated with a reflecting layer, and the reflecting layer is arranged in gaps of the double-faced electricity-generating battery piece in a coating mode, so that the latticed state is formed. The double-faced electricity-generating double-glass module has the advantages that the module itself does not change the framework of a double-glass module, so that it is unnecessary to worry about the load and installation of the module; the latticed-state reflecting layer of the back glass is distributed uniformly, so that the hot spot effect is not caused easily; due to existence of the highly reflective layer on the back side, compared with common back glass made through a float process, the power of the front side of the module is gained by 1.3%, and although a part of the back side is shielded by lattices, the unshielded part still has electricity generating capability, so that compared with a common light-permeable float process, the comprehensive efficiency (the back side accounts for 30%) of the whole module is improved to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of solar cells, in particular to a double-sided power generation double-glass component. Background technique [0002] At present, most of the existing backplanes and double-glass modules use single-sided polycrystalline or monocrystalline cells. The backplanes of traditional backplane modules have extremely low transmittance, in order to ensure the power generation efficiency of the front side of the cells. With the increasing development of double-glass modules, their own advantages are gradually recognized by people, but the combination of double-glass + polycrystalline cells is indeed a waste of resources. [0003] Defects and deficiencies of the prior art: [0004] 1. The existing backplane + glass traditional module, the backplane has the risk of water vapor penetration, which will cause damage to the sealing material and cells in the module, reducing the power generation efficiency and life of the mo...

Claims

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Application Information

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IPC IPC(8): H01L31/048
CPCY02E10/50H01L31/0488
Inventor 钟俊杰林俊良林金锡林金汉
Owner CHANGZHOU ALMADEN