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Solar cell module

A technology of solar cells and modules, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as secondary pollution, time-consuming and labor-intensive

Active Publication Date: 2021-07-02
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, one of the difficulties encountered when decomposing traditional silicon solar cell modules is how to remove the thermosetting plastic material so that the glass and wafer can be taken out for recycling without damage
[0004] At present, there are two methods for removing thermosetting plastics. One is to decompose EVA in acid or organic solvents, and the other is to heat the silicon solar cell module at a temperature of 300°C to 550°C to separate the glass plate from the Solar cells, no matter which method is used, are time-consuming and labor-intensive, and will produce secondary pollution
Therefore, it is urgent to propose a solar cell module that can solve the above problems, which is easy to disassemble and can pass the IEC61215 electrical verification specification, so as to solve the problem of high-value recycling of waste modules in the industry

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0035] Physical property test of solar cell module (thermoplastic resin layer is hydrogenated styrene resin, thickness 200μm)

[0036] In this embodiment, as figure 1 The solar cell module 10 shown was subjected to physical property tests. In the module structure, the materials and dimensions of related components are described as follows: the first substrate (backplane) 12 is a solar backplane with a thickness of about 0.31 mm. The second substrate (front plate) 14 is transparent glass with a thickness of about 3.2 mm. The thickness of the battery cell 16 is approximately 180 μm. The first thermosetting resin layer 18 is ethylene-vinyl acetate copolymer (EVA) (SKC, EF2N) and has a thickness of about 400 μm. The first thermoplastic resin layer 20 is hydrogenated (styrene-butadiene-styrene) triblock copolymer (SEBS) (available from Asahi chemical Co. Ltd. S.O.E. TM S1611, glass transition temperature 9°C, melt fluidity 4g / 10min (190°C, 2.16kgf)), thickness about 292μm. The...

Embodiment 2

[0038] Physical property test of solar cell module (thermoplastic resin layer is hydrogenated styrene resin, thickness 400μm)

[0039] In this embodiment, as figure 1 The solar cell module 10 shown was subjected to physical property tests. In the module structure, the materials and dimensions of related components are described as follows: the first substrate (backplane) 12 is a solar backplane with a thickness of about 0.31 mm. The second substrate (front plate) 14 is transparent glass with a thickness of about 3.2mm. The thickness of the battery cell 16 is approximately 180 μm. The first thermosetting resin layer 18 is ethylene-vinyl acetate copolymer (EVA) (SKC, EF2N) and has a thickness of about 400 μm. The first thermoplastic resin layer 20 is hydrogenated (styrene-butadiene-styrene) triblock copolymer (SEBS) (available from Asahi chemical Co. Ltd. S.O.E. TM S1611, glass transition temperature 9°C, melt fluidity 4g / 10min (190°C, 2.16kgf)), thickness about 511μm. The ...

Embodiment 3

[0041] Physical property test of solar cell module (thermoplastic resin layer is acrylic resin)

[0042] In this embodiment, as figure 1 The solar cell module 10 shown was subjected to physical property tests. In the module structure, the materials and dimensions of related components are described as follows: the first substrate (backplane) 12 is a solar backplane with a thickness of about 0.31 mm. The second substrate (front plate) 14 is transparent glass with a thickness of about 3.2mm. The thickness of the battery cell 16 is approximately 180 μm. The first thermosetting resin layer 18 is ethylene-vinyl acetate copolymer (EVA) (SKC, EF2N) and has a thickness of about 400 μm. The first thermoplastic resin layer 20 is a tri-block acrylic resin (KURARAY, LA2140, melt fluidity: 31 g / 10 min (190° C., 2.16 kgf)), and its thickness is about 320 μm. The second thermosetting resin layer 22 is ethylene-vinyl acetate copolymer (EVA) (SKC, EF2N) and has a thickness of about 400 μm....

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Abstract

The present invention discloses a solar cell module, which includes: a first substrate; a second substrate arranged opposite to the first substrate; a battery unit arranged between the first substrate and the second substrate; a first thermosetting resin layer disposed between the battery cell and the first substrate; a first thermoplastic resin layer arranged between the battery cell and the first thermosetting resin layer; a second thermosetting resin layer disposed between the battery cell and the second substrate; and a second thermoplastic resin layer arranged between the battery cell and the second thermosetting resin layer.

Description

【Technical field】 [0001] The disclosure of the present invention relates to a solar cell module, in particular to a disassembled and recyclable solar cell module. 【Background technique】 [0002] Recently, with the mass installation of solar battery modules, more and more waste solar battery modules are produced, and the problem of recycling and resource reuse has gradually emerged. In order to recycle the materials of solar battery modules, it is necessary to Component decomposition. [0003] Taking the traditional silicon solar module structure as an example, in order to prolong its service life, thermosetting polymers are generally used as packaging materials, such as ethylene vinyl acetate (EVA) or polyolefin (PO) for packaging Fix polycrystalline or monocrystalline solar cells. Once the thermosetting polymer has a network crosslinking between molecules, it is impossible to separate the glass or solar chip by heating and melting the packaging film, so as to achieve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048
CPCH01L31/048H01L31/0481Y02E10/50
Inventor 关旻宗王文献刘怡君谢心心赖秋助
Owner IND TECH RES INST
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