A kind of photovoltaic cell assembly and its manufacturing method

A technology of photovoltaic cells and components, applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of easy aging and yellowing, high working temperature, temperature rise of transparent tempered glass, etc., to achieve improved working stability, excellent thermal conductivity, The effect of improving the bonding performance

Active Publication Date: 2020-01-24
安徽秦能光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The layers of the photovoltaic cell module are in close contact. In the actual use process, on the one hand, when the sun shines on the transparent tempered glass, the solar energy that does not pass through the transparent tempered glass will be converted into heat, which will increase the temperature of the transparent tempered glass; On the one hand, photovoltaic cells also generate heat during the process of photoelectric conversion, which makes the operating temperature of the entire photovoltaic cell assembly higher, and photovoltaic cell assemblies are often used outdoors, there is a large amount of water vapor in the air, EVA packaging glue The layer is prone to aging and yellowing in a high temperature and humid environment for a long time, which will lead to a significant decrease in the light transmittance of the EVA packaging adhesive layer, which will lead to a decrease in the photoelectric conversion efficiency of the photovoltaic cell, thereby affecting the output power of the photovoltaic cell module.

Method used

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  • A kind of photovoltaic cell assembly and its manufacturing method
  • A kind of photovoltaic cell assembly and its manufacturing method
  • A kind of photovoltaic cell assembly and its manufacturing method

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preparation example Construction

[0026] A method for preparing a photovoltaic cell assembly proposed in a specific embodiment of the present invention comprises the following steps:

[0027] 1) A resin backplane is provided, a plurality of through holes are opened on the resin backplane, and a first thermally conductive packaging adhesive layer is laid on the resin backplane, and the first thermally conductive packaging adhesive layer includes polyolefin and relative to 100 parts by weight of the polyolefin is 5-10 parts by weight of the first heat-conducting nanoparticles;

[0028] 2) laying a second thermally conductive packaging adhesive layer on the first thermally conductive packaging adhesive layer, the second thermally conductive packaging adhesive layer comprising ethylene-vinyl acetate copolymer and 100 weights relative to the ethylene-vinyl acetate copolymer Parts are 10-15 parts by weight of second heat-conducting nanoparticles, the particle diameter of the second heat-conducting nanoparticles is l...

Embodiment 1

[0043] A method for preparing a photovoltaic cell assembly, comprising the following steps:

[0044] 1) A resin backplane is provided, a plurality of through holes are opened on the resin backplane, and a first thermally conductive packaging adhesive layer is laid on the resin backplane, and the first thermally conductive packaging adhesive layer includes polyolefin and relative to 100 parts by weight of the polyolefin is 8 parts by weight of the first heat-conducting nanoparticles;

[0045] 2) laying a second thermally conductive packaging adhesive layer on the first thermally conductive packaging adhesive layer, the second thermally conductive packaging adhesive layer comprising ethylene-vinyl acetate copolymer and 100 weights relative to the ethylene-vinyl acetate copolymer Parts are 12 parts by weight of the second heat-conducting nanoparticles, the particle diameter of the second heat-conducting nanoparticles is larger than the particle diameter of the first heat-conducti...

Embodiment 2

[0053] A method for preparing a photovoltaic cell assembly, comprising the following steps:

[0054] 1) A resin backplane is provided, a plurality of through holes are opened on the resin backplane, and a first thermally conductive packaging adhesive layer is laid on the resin backplane, and the first thermally conductive packaging adhesive layer includes polyolefin and relative to 100 parts by weight of the polyolefin is 10 parts by weight of the first heat-conducting nanoparticles;

[0055] 2) laying a second thermally conductive packaging adhesive layer on the first thermally conductive packaging adhesive layer, the second thermally conductive packaging adhesive layer comprising ethylene-vinyl acetate copolymer and 100 weights relative to the ethylene-vinyl acetate copolymer Parts are 15 parts by weight of the second heat-conducting nanoparticles, the particle diameter of the second heat-conducting nanoparticles is larger than the particle diameter of the first heat-conduct...

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Abstract

The invention relates to a photovoltaic cell assembly and a production method thereof. The production method comprises the following steps: sequentially laying a resin back plate, a first heat-conducting packaging adhesive layer, a second heat-conducting packaging adhesive layer, a third heat-conducting packaging adhesive layer, a photovoltaic cell piece layer, a first heat-insulating packaging adhesive layer, a polyolefin packaging adhesive layer, a second heat-insulating packaging adhesive layer and a first glass cover plate, forming a first annular groove in the peripheral edge of the uppersurface of the first glass cover plate, and then laminating; forming a plurality of semispherical bulges in array arrangement on the lower surface of a second glass cover plate, bonding the first glass cover plate and the second glass cover plate together by using an annular sealing ring so as to form an air gap between the first glass cover plate and the second glass cover plate. The photovoltaic cell assembly is long in service life, good in stability and high in output power.

Description

technical field [0001] The invention relates to the technical field of photovoltaic cells, in particular to a photovoltaic cell component and a manufacturing method thereof. Background technique [0002] In the preparation process of the existing photovoltaic cell components, the first EVA encapsulation adhesive layer, the photovoltaic cell sheet layer, the second EVA encapsulation adhesive layer and the transparent tempered glass layer are usually sequentially laid on the photovoltaic cell backplane, and then laminated process to form photovoltaic cell modules. The layers of the photovoltaic cell module are in close contact. In the actual use process, on the one hand, when the sun shines on the transparent tempered glass, the solar energy that does not pass through the transparent tempered glass will be converted into heat, which will increase the temperature of the transparent tempered glass; On the one hand, photovoltaic cells also generate heat during the process of pho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/049H01L31/052H01L31/054
CPCH01L31/0481H01L31/0488H01L31/049H01L31/052H01L31/0543Y02E10/52
Inventor 张军
Owner 安徽秦能光电有限公司
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