Solar battery back plate and solar battery

A solar cell and backsheet technology, applied in the field of solar cells, can solve the problems of reduced service life of solar cells, poor UV resistance of the backsheet, lack of hydrolysis stability, etc., and achieve good water vapor barrier performance, good mechanical strength and size The effect of stability, good performance

Active Publication Date: 2012-02-29
HANGZHOU FUMO NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluorine-containing materials are not only expensive, but also difficult to process
[0006] At present, non-fluorine backsheets have also appeared on the market, mainly using materials such as nylon and thermoplastic polyester, but the

Method used

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  • Solar battery back plate and solar battery
  • Solar battery back plate and solar battery
  • Solar battery back plate and solar battery

Examples

Experimental program
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preparation example Construction

[0032] The present invention has no special limitation on the preparation method of the substrate, and the roll film sheet can be produced by continuous sheet processing, such as using roving, chopped fiber mat, continuous fiber mat, surface mat or fiber cloth, etc. as reinforcing materials. These reinforcing materials are unwound through guide rollers, impregnated with thermosetting resins through a resin impregnation tank filled with resins and additives and other raw materials, and then heated and formed by a crawler-type continuous tablet press to cure the resins. Fiber-reinforced thermosetting resin film sheet; when the reinforcing material is continuous roving, a simple pultrusion process can be used to prepare fiber-reinforced thermosetting sheet.

[0033]The substrate can also be prepared in batch production, such as mixing fibers, resins and additives, using sheet molding compound (Sheet Molding Compound, SMC) or bulk molding compound (Bulk Molding Compound, BMC), by h...

Embodiment 1

[0045] Choose alkali-free glass fiber chopped strand mat (CSM), with a weight of 150g / m 2 , thickness 1.0mm, unwinding by unwinding roller, impregnated by resin impregnation tank equipped with unsaturated polyester resin, said unsaturated polyester resin includes: 100 parts by mass of unsaturated polyester; 35 parts by mass of styrene; 1.5 parts by mass Mass parts methyl ethyl ketone peroxide; 0.5 mass parts mass concentration is 6% cobalt naphthenate solution; During impregnation, the mass ratio that makes alkali-free glass fiber chopped strand mat and unsaturated polyester resin is 65: 35; Impregnating finishes, will obtain The alkali-free glass fiber chopped strand mat impregnated with resin passes through a crawler-type continuous tablet press, and is heated and pressed to form a substrate; the formed substrate is passed through a roller impregnated in liquid acrylate monomer in the lower half, and the impregnation is completed , continue to be conveyed by rollers, and the...

Embodiment 2

[0048] Select non-alkali glass continuous fiber mat (Continuous Fiber Mat, CFM), weight 150g / m 2 , thickness 2.0mm, unwinding by the unwinding roller, impregnated through the resin impregnation tank equipped with unsaturated polyester resin, the unsaturated polyester resin includes: 100 parts by mass of unsaturated polyester; 40 parts by mass of styrene; 1.5 Mass parts methyl ethyl ketone peroxide; 0.5 mass parts mass concentration is 6% cobalt naphthenate solution; When impregnating, make the mass ratio of non-alkali glass continuous fiber felt and unsaturated polyester resin be 50: 50; Impregnating finishes, will obtain The non-alkali glass continuous fiber mat impregnated with resin is heated and pressed to form a substrate by a crawler-type continuous tablet press; the formed substrate is passed through a roller with a scraper with a liquid tank placed above it, and the liquid tank contains The liquid methyl chlorosilane monomer of the initiator is scraped and coated on th...

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Abstract

The invention provides a solar battery back plate, which comprises a substrate and a water vapor separation layer, wherein the substrate is made of fiber reinforcement thermosetting resin; and the water vapor separation layer is compounded on the substrate. The invention also provides a solar battery, which comprises a front plate, a front packaging film, a guiding wire, a silicon chip, a rear packaging film and the back plate which are sequentially compounded with one another. In the solar battery back plate provided by the invention, the substrate made of the fiber reinforcement thermosetting resin has high mechanical strength and dimensional stability, a high insulating property and high thermal resistance, aging resistance and corrosion resistance; and the water vapor separation layer coated on the substrate has high water vapor separation performance, high corrosion resistance and high glossiness, so that the obtained back plate has high performance, particularly has prominent thermal resistance, hydrolysis resistance stability, weather aging resistance and water vapor separation performance, and the solar battery can be used outdoors for a long time.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a solar cell backboard and a solar cell. Background technique [0002] With the depletion of petrochemical energy, various renewable new energy industries are booming. According to the forecast of the EU Joint Research Center (JRC, Joint Research Center European Commission), by 2050, the proportion of renewable energy will exceed that of traditional energy, accounting for about 52%. %, of which solar energy accounts for more than half, about 28%; by the end of this century, the proportion of renewable energy will account for 86%, and solar energy will account for about 67% of it. [0003] Solar power generation is an important part of the solar energy strategy. Among them, the solar photovoltaic industry has received special attention from the governments of various countries, and the industrialization speed is very fast. The prior art discloses a variety of phot...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/042B32B27/06B32B27/18B32B33/00H01L31/049
CPCY02E10/50
Inventor 顾方明任冬友
Owner HANGZHOU FUMO NEW MATERIAL TECH
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