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High-heat-resistance solar cell and preparation method thereof

A solar cell and high heat-resistant technology, applied in the field of solar cells, can solve the problems of affecting the light receiving efficiency of the semiconductor layer, reducing the efficiency of photoelectric energy conversion, and reducing the light transmittance of the adhesive film, so as to prevent cracks or stains, Improve dispersibility and increase viscosity

Pending Publication Date: 2022-04-22
CHINALAND SOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Solar cells are generally arranged in groups and installed in well-lit areas, but these areas often have harsh natural conditions, such as the high temperature in the Gobi desert, and solar cells will age after working for a long time, especially the film. Reduce the light transmittance, affect the efficiency of the semiconductor layer to receive light and thus reduce the efficiency of light energy to electrical energy conversion

Method used

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  • High-heat-resistance solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Prepare the film, comprising the steps of:

[0023] Mix 2g of diisooctyl phthalate, 1.2g of polyamic acid, 0.5g of vinyltrimethoxysilane and 1g of pentaerythritol tetrakis (2-cyano-3,3-diphenylacrylate) with a high-speed mixer, To obtain the additive composition, preheat at 70°C;

[0024] Set the temperature of the feeding section of the twin-screw extruder to 120°C, the melting section to 160°C, and the die opening temperature to 170°C; crush 100g of PVB resin into particles with a diameter of 0.5cm, and dry it at 45°C for 3 hours. Mix the dried PVB resin granules and 3 g of the preheated additive composition with a high-speed mixer for 30 minutes, melt extrude and granulate with a twin-screw extruder to obtain PVB plastic granules;

[0025] Preheat the PVB plastic granules at 80°C for 45 minutes, then use a thermocompression molding machine to pressurize and exhaust at 145°C and keep the pressure for 3 minutes, and mold the preheated PVB plastic granules into a 0.4mm...

Embodiment 2

[0027] Prepare the film, comprising the steps of:

[0028] Put 2.5g of di-isooctyl phthalate, 1.6g of polyamic acid, 0.6g of vinyltrimethoxysilane and 1.2g of pentaerythritol tetrakis (2-cyano-3,3-diphenylacrylate) in a high-speed mixer Mix to obtain the additive composition, and preheat at 75°C;

[0029] Set the temperature of the feeding section of the twin-screw extruder to 125°C, the melting section to 170°C, and the die opening temperature to 175°C; crush 100g of PVB resin into particles with a diameter of 1cm, dry it at 48°C for 4 hours, and dry the The dried PVB resin granules and the preheated additive composition were mixed with a high-speed mixer for 45 minutes, melted and extruded with a twin-screw extruder and pelletized to obtain PVB plastic granules;

[0030] Preheat the PVB plastic granules at 85°C for 50 minutes, then use a thermocompression molding machine to pressurize and exhaust at 150°C and then keep the pressure for 4 minutes, and mold the preheated PVB ...

Embodiment 3

[0032] Prepare the film, comprising the steps of:

[0033] Mix 3g of diisooctyl phthalate, 2g of polyamic acid, 0.8g of vinyltriethoxysilane and 1.5g of pentaerythritol tetrakis(2-cyano-3,3-diphenylacrylate) with a high-speed mixer , to obtain the additive composition, preheating at 80°C;

[0034] Set the temperature of the feeding section of the twin-screw extruder to 130°C, the melting section to 180°C, and the die opening temperature to 180°C; crush 100g of PVB resin into particles with a diameter of 2cm, dry it at 50°C for 5h, and The dried PVB resin particles and the preheated additive composition were mixed with a high-speed mixer for 60 minutes, melted and extruded with a twin-screw extruder and pelletized to obtain PVB plastic particles;

[0035] Preheat the PVB plastic granules at 90°C for 60 minutes, then use a thermocompression molding machine to pressurize and exhaust at 150°C and keep the pressure for 5 minutes, mold the preheated PVB plastic granules into a 1mm ...

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Abstract

The invention discloses a high-heat-resistance solar cell and a preparation method thereof, and belongs to the technical field of solar cells, an auxiliary agent composition is added into an adhesive film of the high-heat-resistance solar cell, polyamide acid has the characteristics of high temperature resistance and low temperature resistance at the same time and has a toughening effect, the toughness of PVC is improved, and the service life of the solar cell is prolonged. A silane coupling agent is matched to improve the dispersity of each raw material of the adhesive film, the viscosity can be increased, the fitting degree of the adhesive film with a semiconductor layer and a cover plate is increased, the problems of shadow and the like in the production process of the solar cell are avoided, and the influence on the light transmission of an outer side material of the semiconductor layer is avoided; pentaerythritol tetra (2-cyano-3, 3-diphenylacrylate) is an ultraviolet absorbent with good light stability and heat stability, and is uniformly dispersed in the adhesive film, so that the aging resistance of the adhesive film can be improved, and cracks or color spots influencing the light transmission performance of the adhesive film after the adhesive film is used for a long time are prevented.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a high heat-resistant solar cell and a preparation method thereof. Background technique [0002] Solar cell is a kind of photoelectric semiconductor sheet that uses sunlight to generate electricity directly, also known as "solar chip" or "photovoltaic cell". generate current. In physics, it is called solar photovoltaic, or photovoltaic for short. [0003] Solar cells are generally arranged in groups and installed in well-lit areas, but these areas often have harsh natural conditions, such as the high temperature in the Gobi desert, and solar cells will age after working for a long time, especially the film. Reducing the light transmittance affects the efficiency of the semiconductor layer to receive light, thereby reducing the efficiency of converting light energy into electrical energy. Improving the performance of the adhesive film can increase the operating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/049C09J7/10C09J7/30C09J129/14C09J11/08C09J11/06
CPCH01L31/049C09J7/10C09J7/30C09J129/14C09J11/08C09J11/06C09J2203/322C08L79/08C08K5/315Y02E10/50
Inventor 王可胜郭万东郭天宇侯俊梁发宏袁艺琴柏爱玉张龙
Owner CHINALAND SOLAR ENERGY
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