Photovoltaic transparent composite film, and preparation method and application thereof

A composite film, optically transparent technology, used in photovoltaic power generation, electrical components, circuits, etc., to achieve the effect of being beneficial to photoelectric conversion efficiency and power, excellent UV aging resistance, and high optical transmittance

Inactive Publication Date: 2017-07-18
HANGZHOU FIRST APPLIED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology requires laying dozens of thin tinned copper wires (ribbons) on the battery sheet and welding them with thin grid wires. A layer of film material is required to arrange and fix the tinned copper wires (ribbons) in advance and support them during the welding process. position

Method used

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  • Photovoltaic transparent composite film, and preparation method and application thereof
  • Photovoltaic transparent composite film, and preparation method and application thereof
  • Photovoltaic transparent composite film, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: A transparent composite film bonding layer for photovoltaics, the raw material formula of the bonding layer includes the following raw materials by weight.

[0041]

[0042] In the above formula, the (meth)acrylate monomers are n-butyl acrylate, 2-hydroxyethyl acrylate and ethyl methacrylate in a weight ratio of 1:1:3. The diluent is toluene, the initiator is azobisisobutyronitrile, the coupling agent is γ-methacryloxypropyltrimethoxysilane, the antioxidant is selected antioxidant 1035, and the ultraviolet stabilizer is 2-( 2'-Hydroxy-5'-methylphenyl)benzotriazole, the crosslinking agent is isocyanate.

[0043] The preparation process includes the following steps:

[0044] 1. Mix (meth)acrylate hard monomer, soft monomer, and diluent in a certain proportion, add them into the stirring tank, stir and heat to 95°C, and react for 8 hours, during which a certain proportion of initiator is continuously dropped, Finally, an acrylic adhesive with a viscosity...

Embodiment 2

[0047] Embodiment 2: A transparent composite film bonding layer for photovoltaics, the raw material formula of the bonding layer includes the following raw materials by weight.

[0048]

[0049]

[0050] In the above formula, the (meth)acrylate monomers are ethyl acrylate and 2-hydroxypropyl methacrylate, and the weight ratio is 2:3. The diluent is butyl acetate, the initiator is azobisisoheptanonitrile, the coupling agent is 3-aminopropyltrimethoxysilane, the antioxidant is selected as antioxidant 1076, and the ultraviolet stabilizer is 2-hydroxy-4- Methoxybenzophenone, crosslinking agent is isocyanate.

[0051] The preparation process includes the following steps:

[0052] 1. Mix acrylate hard monomer, soft monomer and diluent in a certain proportion, add them into the stirring tank, stir and heat to 90°C, and react for 10 hours. 3000cps acrylic adhesive;

[0053] 2. Mix and stir the acrylate adhesive prepared in step 1 with a certain proportion (the proportion in t...

Embodiment 3

[0055] Embodiment 3: A transparent composite film bonding layer for photovoltaics, the raw material formula of the bonding layer includes the following raw materials by weight.

[0056]

[0057] In the above formula, the (meth)acrylate monomers are cyclohexyl acrylate, 2-hydroxyethyl acrylate and butyl methacrylate in a weight ratio of 2:1:1. The diluent is butanone, the initiator is dimethyl azobisisobutyrate, the coupling agent is γ-methacryloxypropyltrimethoxysilane, the antioxidant is antioxidant 1010, and UV stabilizer It is 2-hydroxy-4-methoxybenzophenone, the crosslinking agent is isocyanate, and the light conversion agent is SrAl 2 o 4 : Eu 2+ , Dy 3+ , in the form of nanoparticles with a particle size of 50nm.

[0058] The preparation process includes the following steps:

[0059] 1. Mix acrylate hard monomer, soft monomer and diluent in a certain proportion, add them into the stirring tank, stir and heat to 90°C, and react for 8 hours. 5000cps acrylic adhesi...

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Abstract

The invention discloses a photovoltaic transparent composite film, and a preparation method and application thereof. The transparent composite film comprises a release paper layer and a function layer, the function layer comprises a supporting layer and a bonding layer, and at least one of the supporting layer and the bonding layer is mixed with a light conversion agent which can converting part of ultraviolet light into visible light. The lower surface of the supporting layer is connected with the bonding layer, and the upper surface and the lower surface of the supporting layer are both flat surfaces or at least one surface is provided with certain light tripping microstructures. The bonding layer is formed by an acrylic ester pressure-sensitive adhesive and can bond metal materials well. The transparent composite film can be applied to multi-main grid and non-main grid photovoltaic modules, and plays a role in applying brass wires to a battery piece, and has high transmissivity and an excellent anti-ultraviolet ageing performance, and can satisfy the usage demand of photovoltaic modules.

Description

technical field [0001] The invention belongs to the field of photovoltaic applications, and relates to a transparent composite film for photovoltaics, a preparation method and application thereof. Background technique [0002] With the increasingly severe energy and environmental problems, the utilization of clean and renewable energy is urgent. Among them, photovoltaic power generation technology has developed rapidly and become increasingly mature, and the application of photovoltaic cells is gradually becoming popular. In order to further improve the conversion efficiency of photovoltaic cells, reduce preparation costs, and achieve grid parity, new cell and module technologies are constantly being developed. In the prior art, for crystalline silicon cells that occupy a dominant position and are commercially produced and applied on a large scale, the front electrode grid lines are generally screen-printed with silver paste, including uniformly densely distributed thin grid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/055H01L31/0224
CPCY02E10/52H01L31/055H01L31/022425
Inventor 曹明杰李志强林维红周光大林建华
Owner HANGZHOU FIRST APPLIED MATERIAL CO LTD
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