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Fiberglass-based norbornene copolymer modified solar cell back film and fabrication process thereof

A technology of copolymer modification and norbornene, applied in sustainable manufacturing/processing, circuits, photovoltaic power generation, etc., can solve problems such as brittleness, component defects, wrinkles, etc., achieve high water vapor barrier properties, and improve production Good efficiency and good adhesion

Active Publication Date: 2015-04-22
JOLYWOOD SUZHOU SUNWATT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the battery back film is located on the outermost layer of the back of the solar cell module, it is easy to become brittle in long-term outdoor use, and cannot effectively protect the solar cell module for long-term use
The material for making the back film needs to have good hardness, otherwise it is easy to cause problems such as wrinkles during the production process of solar cell modules, resulting in defects or failures of the modules

Method used

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  • Fiberglass-based norbornene copolymer modified solar cell back film and fabrication process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The thickness of the base layer 1 of the solar cell back film is 0.1mm, the thickness of the upper surface layer 2 is 0.01mm, the thickness of the bottom layer 3 is 0.01mm, and the thickness of the surface layer 4 is 0.005mm. The norbornene copolymer and POE in the upper surface layer 2 The weight ratio of norbornene copolymer and PA in bottom layer 3 is 1:1, and the weight ratio of norbornene copolymer and PVDF in surface layer 4 is 1:1.

Embodiment 2

[0034]The thickness of the base layer 1 of the solar cell back film is 2.0mm, the thickness of the upper surface layer 2 is 0.03mm, the thickness of the bottom layer 3 is 0.03mm, and the thickness of the surface layer 4 is 0.01mm. The norbornene copolymer and POE in the upper surface layer 2 The weight ratio of norbornene copolymer and POE in bottom layer 3 is 1.1:1, and the weight ratio of norbornene copolymer and PVDF in surface layer 4 is 1.1:1. Embodiment three:

Embodiment 3

[0035] The thickness of the base layer 1 of the solar cell back film is 6.0 mm, the thickness of the upper surface layer 2 is 0.05 mm, the thickness of the bottom layer 3 is 0.05 mm, and the thickness of the surface layer 4 is 0.05 mm. The norbornene copolymer and PA in the upper surface layer 2 The weight ratio of norbornene copolymer and PA in bottom layer 3 is 1.2:1, and the weight ratio of norbornene copolymer and PVDF in surface layer 4 is 1.2:1. Embodiment four:

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Abstract

The invention discloses a fiberglass-based norbornene copolymer modified solar cell back film, which comprises a substrate layer, an upper surface layer, a bottom layer and a surface layer, wherein fiberglass cloth is used as a support body of the substrate layer; the upper surface layer is positioned on the upper surface of the substrate layer, and consists of a norbornene copolymer and polyol ester (POE)-based eutectic or a norbornene copolymer and polyamide (PA)-based eutectic; the bottom layer is positioned on the lower surface of the substrate layer, and consists of a norbornene copolymer and polyol ester (POE)-based eutectic or a norbornene copolymer and polyamide (PA)-based eutectic; and the surface layer is positioned on the upper surface layer, and consists of a norbornene copolymer and polyvinylidene fluoride (PVDF)-based eutectic. The fiberglass-based norbornene copolymer modified solar cell back film has the characteristics of resistance to heat, humidity and aging, tear resistance, hydrolysis resistance, high steam barrier property, high insulating property, strong strength and dimensional stability, and is easy to fabricate and mold and favorable to protect a solar cell component and prolong the service life of a solar cell.

Description

technical field [0001] The invention relates to the field of solar battery back films, in particular to a glass fiber-based norbornene copolymer modified solar battery back film. At the same time, it also relates to a processing technology of the solar cell back film. Background technique [0002] The solar cell back film is an integral part of the solar cell. The back film is the protective material on the back of the cell, which is used to support and fix the solar cell and protect the solar cell components. Since the battery back film is located on the outermost layer of the back of the solar cell module, it is easy to become brittle in long-term outdoor use, and cannot effectively protect the solar cell module for long-term use. The material for making the back film needs to have good hardness, otherwise it is easy to cause problems such as wrinkles during the production process of solar cell modules, resulting in defects or failures of the modules. At the same time, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/18B32B27/08B32B27/36B32B27/32H01L31/049
CPCY02E10/50Y02P70/50
Inventor 林建伟夏文进张育政王志
Owner JOLYWOOD SUZHOU SUNWATT