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Encapsulation composition for a solar cell and preparing method of encapsulation sheet

A technology for solar cells and packaging materials, applied in the fields of final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve the problems of not performing accurate evaluation of power generation efficiency decline, module performance degradation, and prone to leakage, etc., to achieve stable packaging materials Structure and function, prevention of performance degradation, and excellent insulation performance

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when exposed to environments such as rain and dew, electric leakage is more likely to occur, which seriously degrades the performance of the module
[0005] At present, in the certification test of solar cell modules, accurate evaluation of power generation efficiency degradation is not performed.
In order to solve this problem, the industry generally believes that it is necessary to develop better cells, module array systems and raw materials with better insulation performance, but no appropriate solution has been proposed so far.

Method used

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  • Encapsulation composition for a solar cell and preparing method of encapsulation sheet
  • Encapsulation composition for a solar cell and preparing method of encapsulation sheet
  • Encapsulation composition for a solar cell and preparing method of encapsulation sheet

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Based on 100 parts by weight of ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate (Melt Flow Rate) 15g / 10 minutes), the proportion is 2,5-dimethyl-2, 1.0 parts by weight of 5-bis(tert-butylperoxy)hexane (manufactured by Aldrich, Luperox101), crosslinking aid-triallyl isocyanurate (manufactured by Nippon Chemical Corporation, TAIC) 0.8 parts by weight, Ultraviolet absorber——2-Hydroxy 4-octyloxybenzophenone (manufactured by Sumitomo Chemical Co., Ltd., sumisorb 130) 0.1 part by weight and 15-crown-5 (manufactured by Aldrich Company) 1 part by weight, 18-crown-6 (manufactured by Aldrich) Manufactured by the company) 1 part by weight was rolled by a twin extruder with a diameter of 104mm at a temperature below 110°C to produce a 500μm thick sheet.

Embodiment 2

[0042] Based on 100 parts by weight of ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate 15g / 10min), the proportion of 2,5-dimethyl-2,5-bis(t- Butyl peroxy) hexane (manufactured by Aldrich, Luperox101) 1.0 parts by weight, crosslinking aid---triallyl isocyanurate (manufactured by Nippon Chemical Corporation, TAIC) 0.8 parts by weight, ultraviolet absorber--- - 0.1 parts by weight of 2-hydroxyl 4-octyloxybenzophenone (Sumitomo Chemical Co., sumisorb 130) and 1 part by weight of 15-crown-5 (manufactured by Aldrich Company), passed through a double extruder with a diameter of 104mm at 110°C Rolling was carried out at the following temperature to produce a 500 µm thick sheet.

Embodiment 3

[0044] Based on 100 parts by weight of ethylene-vinyl acetate copolymer (ethylene-vinyl acetate content 28wt%, melt flow rate 15g / 10min), the proportion of 2,5-dimethyl-2,5-bis(t- Butyl peroxy) hexane (manufactured by Aldrich, Luperox101) 1.0 parts by weight, crosslinking aid---triallyl isocyanurate (manufactured by Nippon Chemical Corporation, TAIC) 0.8 parts by weight, ultraviolet absorber---2 0.1 parts by weight of -hydroxyl 4-octyloxybenzophenone (Sumitomo Chemical Co., sumisorb 130) and 1 part by weight of 18-crown-6 (manufactured by Aldrich Company) were passed through a double extruder with a diameter of 104 mm at a temperature below 110 ° C. Rolling was carried out at a high temperature to produce a 500 μm thick sheet.

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Abstract

The invention relates to an encapsulation composition for a solar cell and a preparing method of an encapsulation sheet. The encapsulation composition can prevent the performance reduction, of a module, being caused by electric leakage, the encapsulation composition is provided with good insulating property, and can make the solar cell keep stable for a long time. The encapsulation composition comprises an ethylene-vinyl acetate copolymer resin as a main material, on the basis of the weight of the resin, the encapsulation composition also comprises 0.1-5 parts by mass of a peroxide added as a key additive, and 0.01-5 parts by mass of a metal ion catching agent.

Description

technical field [0001] The present invention relates to a packaging material for solar cells with excellent insulation properties and a method for manufacturing a packaging sheet using the same, in particular to a method of adding a metal ion scavenger with a specific structure to an ethylene-vinyl acetate copolymer used as a packaging material to suppress leakage caused by leakage. The solar cell encapsulation material composition and the encapsulation sheet manufacturing method using the same have excellent insulating properties and can maintain the stability of the solar cell for a long time due to the degradation of the module performance. Background technique [0002] As a green energy source, solar cells do not pollute the environment, can overcome the crisis of energy depletion, are pollution-free, noise-free, and can be obtained unlimitedly. Recently, they have been widely welcomed by people. The solar cell module of a solar cell is a semiconductor element that conve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K5/14C08K5/15C08K5/45C08K5/48C08K5/3467H01L31/048H01L31/18
CPCY02E10/50C08K5/159C08K5/3467C08K5/45C08K5/48C08L2203/204H01L31/0481H01L31/18C08L23/0853Y02P70/50B29C48/08C08J5/18C08J7/04C08K3/10C08K5/06C08K5/14C08K5/54C08L2203/162
Inventor 金演秀郑容周朱原徹金吉仲
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