Solar photovoltaic component and preparation method thereof

A technology of solar photovoltaic and solar cells, applied in the field of solar energy, can solve the problems of low optical utilization rate and conversion efficiency, achieve high optical efficiency and conversion efficiency, improve utilization rate, and improve conversion efficiency

Active Publication Date: 2015-12-30
CSG PVTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current double-glass photovoltaic modules still have the problems of low optical utilization and conversion efficiency.

Method used

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  • Solar photovoltaic component and preparation method thereof
  • Solar photovoltaic component and preparation method thereof
  • Solar photovoltaic component and preparation method thereof

Examples

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preparation example Construction

[0048] Such as image 3 As shown, a method for preparing a solar photovoltaic module according to an embodiment is a method for preparing the above solar photovoltaic module. The preparation method of the solar photovoltaic module comprises the following steps:

[0049] Step S210: forming a first packaging adhesive layer on the first glass substrate.

[0050] Wherein, the first glass substrate is a tempered glass plate or a semi-tempered glass plate. The thickness of the first glass substrate is 2 mm to 4 mm.

[0051] Wherein, the material of the first packaging adhesive layer is uncrosslinked ethylene-vinyl acetate copolymer (EVA). The thickness of the first encapsulation adhesive layer is 0.45mm-0.6mm.

[0052] Step S220: providing a reflective layer, a first adhesive layer and a second adhesive layer are formed on two opposite surfaces of the reflective layer, the reflective layer is stacked on the first packaging adhesive layer, and the first adhesive layer and The fi...

Embodiment 1

[0078] The preparation process of the solar photovoltaic module of the present embodiment is as follows:

[0079] (1) Forming a first packaging adhesive layer on the first glass substrate. Wherein, the first glass substrate is a toughened glass plate; the thickness of the first glass substrate is 3 millimeters; the material of the first packaging adhesive layer is uncrosslinked ethylene-vinyl acetate copolymer; the thickness of the first packaging adhesive layer is 0.5 mm.

[0080] (2) providing a reflective layer with a thickness of 150 microns and a reflectivity of 60%; coating uncrosslinked ethylene-vinyl acetate copolymers on opposite surfaces of the reflective layer respectively to form a thickness of 60 microns. An adhesive layer and a second adhesive layer with a thickness of 60 microns, the reflective layer is laminated on the first encapsulation adhesive layer, and the first adhesive layer and the first encapsulation adhesive layer are laminated, wherein the material...

Embodiment 2

[0089] The preparation process of the solar photovoltaic module of the present embodiment is as follows:

[0090] (1) Forming a first packaging adhesive layer on the first glass substrate. Wherein, the first glass substrate is a semi-tempered glass plate; the thickness of the first glass substrate is 2 millimeters; the material of the first packaging adhesive layer is uncrosslinked ethylene-vinyl acetate copolymer; the thickness of the first packaging adhesive layer is 0.45 mm.

[0091] (2) providing a reflective layer with a thickness of 50 microns and a reflectivity of 70%; coating uncrosslinked ethylene-vinyl acetate copolymers on opposite surfaces of the reflective layer respectively to form a thickness of 25 microns. An adhesive layer and a second adhesive layer with a thickness of 25 microns, the reflective layer is laminated on the first encapsulation adhesive layer, and the first adhesive layer and the first encapsulation adhesive layer are laminated, wherein the mate...

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Abstract

The invention relates to a solar photovoltaic component and a preparation method thereof. The solar cell component comprises a first glass substrate, a transparent first packaging layer, a reflecting layer, a transparent second packaging layer, a solar cell sheet and a second glass substrate. The first packaging layer, the reflecting layer, the second packaging layer and the second glass substrate are laminated on the first glass substrate in turn. The second packaging layer is provided with a sealed accommodating cavity. The solar cell sheet is accommodated in the accommodating cavity. The second glass substrate is provided with a pattern surface which is provided with patterns formed by multiple protrusions arranged in a spacing way, and the pattern surface of the second glass substrate and the second packaging layer are laminated. Reflectivity of the reflecting layer is more than 60%. The solar photovoltaic component has great optical efficiency and conversion efficiency.

Description

technical field [0001] The invention relates to the field of solar energy, in particular to a solar photovoltaic module and a preparation method thereof. Background technique [0002] At present, double-glass photovoltaic module technology is entering a period of rapid development, and people's dual requirements for the conversion efficiency and reliability of photovoltaic modules have promoted the continuous progress of double-glass module technology. However, the current double-glass photovoltaic modules still have the problems of low optical utilization and conversion efficiency. Contents of the invention [0003] Based on this, it is necessary to provide a solar photovoltaic module with high optical utilization and conversion efficiency. [0004] In addition, a method for preparing a solar photovoltaic module is also provided. [0005] A solar photovoltaic module, comprising a first glass substrate, a transparent first encapsulation layer, a reflective layer, a trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/056
CPCY02E10/52
Inventor 陈志穗杨江海蒋忠伟李家兰孙小菩彭华
Owner CSG PVTECH
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