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Anti-PID packaging adhesive film for double-sided PREC battery and preparation method of anti-PID packaging adhesive film

A technology for encapsulating adhesive films and batteries, applied in circuits, adhesives, photovoltaic power generation, etc., can solve the problems of low cross-linking activity of PO adhesive films, long lamination time at the end of modules, and reduced lamination efficiency of modules, so as to shorten the module layer. The effect of pressing time, good sustainability and low manufacturing cost

Pending Publication Date: 2020-09-08
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of PO raw materials, low production efficiency in the manufacturing process, and large investment in co-extrusion equipment, these types of films lead to high film prices.
At the same time, due to the low cross-linking activity of the PO film, the lamination time of the module end is longer, and the lamination efficiency of the module is reduced, which seriously affects the production capacity of the module end.

Method used

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  • Anti-PID packaging adhesive film for double-sided PREC battery and preparation method of anti-PID packaging adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The first step is the formula design of transparent anti-polarization EVA layer:

[0034] Main material: ethylene-vinyl acetate copolymer (EVA), which is made by mixing EVA resin with 18% VA content and EVA resin with 26% VA content according to the weight ratio of 1:1.

[0035] Antioxidant: The main antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, and the secondary antioxidant is tris(4-nonylphenol) phosphorous acid ester and tris(2,4-di-tert-butylphenyl)phosphite are mixed in any proportion.

[0036] Cross-linking agent: the cross-linking curing agent is a compound of 2-ethylhexyl peroxide tert-butyl carbonate and ethyl 3,3-di(tert-butyl peroxy)butyrate; the auxiliary cross-linking agent is triallyl Hydroxyl isocyanurate, triallyl cyanurate and trimethylolpropane trimethacrylate are mixed in any proportion.

[0037] Silane coupling agent: Vinyl tris(β-methoxyethoxy) silane and vinyl triacetoxy silane are compounded at a molar ratio of 1:1. ...

Embodiment 2

[0054] The first step is the formula design of transparent anti-polarization EVA layer:

[0055] Main material: Ethylene-vinyl acetate copolymer (EVA), which is made by mixing EVA resin with 14% VA content and EVA resin with 26% VA content according to the weight ratio of 1:2.

[0056] Antioxidant: The main antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, and the secondary antioxidant is tris(4-nonylphenol) phosphorous acid ester and tris(2,4-di-tert-butylphenyl)phosphite are mixed in any proportion.

[0057] Cross-linking agent: the cross-linking curing agent is a compound of tert-amyl peroxide 2-ethylhexyl carbonate and ethyl 3,3-di(tert-butylperoxy)butyrate; the auxiliary cross-linking agent is propoxylated pentaerythritol Tetraacrylate, triallyl cyanurate and trimethylolpropane trimethacrylate are mixed in any proportion.

[0058] Silane coupling agent: Vinyl tri(β-methoxyethoxy) silane and vinyl triacetoxy silane are compounded at a molar ratio...

Embodiment 3

[0075] The first step is the formula design of transparent anti-polarization EVA layer:

[0076] Main material: ethylene-vinyl acetate copolymer (EVA), the VA content of the EVA resin is 26%.

[0077] Antioxidant: The main antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate, and the secondary antioxidant is tris(4-nonylphenol) phosphorous acid ester and tris(2,4-di-tert-butylphenyl)phosphite are mixed in any proportion.

[0078]Cross-linking agent: the cross-linking curing agent is a compound of tert-amyl peroxide 2-ethylhexyl carbonate and ethyl 3,3-di(tert-butylperoxy)butyrate; the auxiliary cross-linking agent is propoxylated pentaerythritol Tetraacrylate, triallyl cyanurate and trimethylolpropane trimethacrylate are mixed in any proportion.

[0079] Silane coupling agent: Vinyl tris(β-methoxyethoxy) silane and vinyl triacetoxy silane are compounded at a molar ratio of 1:1.

[0080] Light stabilizer: 3,5-di-tert-butyl-4-hydroxy-benzoic acid hexadecy...

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Abstract

The invention relates to the technical field of packaging adhesive films, in particular to an anti-PID packaging adhesive film for a double-sided PREC battery and a preparation method of the anti-PIDpackaging adhesive film. The packaging adhesive film comprises an upper anti-polarization transparent EVA layer and a lower quick-curing high-cut-off transparent EVA layer, the anti-polarization transparent EVA layer comprises the following components in percentage by mass: the content of the ethylene-vinyl acetate copolymer resin is 80%-89%, the content of the antioxidant is 0.01%-1%, the contentof the light stabilizer is 0.01%-1%, the content of the crosslinking agent is 1%-2%, the content of the silane coupling agent is 0.1%-2%, the content of the inorganic anti-polarization material is 0.5%-2%, and the content of the organic anti-polarization material is 2%-8%; the PID-resistant packaging adhesive film for the double-sided PERC battery has a good PID-resistant effect on a double-sidedPREC battery single-package assembly and has the characteristic of good assembly reliability; meanwhile, a rapid curing cross-linking system is adopted so as to effectively shorten the assembly laminating time and greatly improve the assembly end production efficiency; in addition, the material cost of the co-extrusion adhesive film is relatively low, thereby being more beneficial to promoting photovoltaic equal-price networking.

Description

technical field [0001] The invention relates to the technical field of packaging adhesive films, in particular to an anti-PID packaging adhesive film for double-sided PREC batteries and a preparation method thereof. Background technique [0002] In the past ten years, due to technological progress and the influence of the national photovoltaic policy, my country's photovoltaic industry has developed very rapidly. Since photovoltaic parity went online, the photovoltaic industry has higher and higher requirements for cost reduction and efficiency increase. At present, with the rapid development of battery-side technology, the manufacturing cost of double-sided PERC cells has been lower than that of single-sided aluminum-backed cells. At the same time, the front cell efficiency of double-sided cells is higher than that of ordinary single-sided cells. The production and manufacture of ordinary single-glass modules is carried out in the form of single-sealing double-sided cells....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J7/30C09J11/04C09J11/06C09J123/08H01L31/048
CPCC09J7/10C09J7/30C09J123/0853C09J11/04C09J11/06H01L31/0481C09J2203/33C09J2423/04C08K2201/011C08L2205/025C08L2201/10C08K2201/014C08L23/0853C08K9/00C08K3/34C08K7/26C08K5/10C08K5/17C08K5/00C08K5/1345C08K5/526C08K5/3435C08K5/132C08K3/38C08K5/103C08K5/42Y02E10/50
Inventor 张刚吕松黄宝玉季志超乔刚
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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