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Solar cell assembly backplane and preparation method thereof

A technology of solar cells and components, applied in the field of solar energy, which can solve the problems of increased cost of solvents, increased manufacturing costs, and environmental pollution

Active Publication Date: 2012-10-17
DSM SUNSHINE SOLAR TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] (1) Use a large amount of solvent to dissolve the adhesive. During the processing, the volatilization of the solvent will pollute the environment, and the recovery of the solvent will also increase the cost
[0017] (2) The thickness of the adhesive layer is generally thin, less than or around 10 microns, and the adhesive strength and weather resistance are poor
[0018] (3) A separate process is required to coat the solvent-based adhesive on the fluoroplastic film or PET film, and dry to remove the solvent, which increases the manufacturing cost

Method used

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  • Solar cell assembly backplane and preparation method thereof
  • Solar cell assembly backplane and preparation method thereof
  • Solar cell assembly backplane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Using ordinary extrusion-grade polyvinylidene fluoride PVDF plastic particles, adding 15% polymethyl methacrylate PMMA and 5% surface-treated titanium dioxide TiO 2 , as an inorganic filler, through twin-screw extruder 6 at a temperature of about 200 ° C to extrude, mix and granulate to obtain PVDF mixture plastic particles as the second film layer and the third film layer material. Using adipamide terephthalate / adipamide isophthalate copolyamide plastic particles, adding 20% ​​ethylene methyl acrylate copolymer EMA, 5% surface-treated titanium dioxide TiO 2 and 0.2% heat stabilizer, through the twin-screw extruder 6 at a temperature of about 260 ° C to extrude, mix and granulate to prepare nylon mixture plastic particles as the base film material.

[0080]The PVDF plastic particles and the nylon mixture plastic particles are respectively melted and co-extruded through an extruder, and a composite film is obtained by co-extruding the adapter 7 and the die opening 8, and...

Embodiment 2

[0088] Common extrusion-grade polytetrafluoroethylene PTEF plastic particles are used, adding 15% polymethyl methacrylate PMMA and adding 5% surface-treated silicon dioxide SiO 2 , as an inorganic filler, through a twin-screw extruder 6 at a temperature of about 200 ° C to extrude, mix and granulate to obtain PTEF mixture plastic particles as the second film layer and the third film layer material. Using polyamide 1010, adding 20% ​​ethylene methyl acrylate copolymer EMA, 5% surface-treated silica SiO 2 And 0.2% heat stabilizer and 0.1% light stabilizer, through the twin-screw extruder 6 at a temperature of about 260 ° C to extrude, mix and granulate to obtain nylon mixture plastic particles as the base film material.

[0089] All the other preparation techniques are the same as in Example 1. Thus, a PTEF / nylon / PTEF three-layer laminated film is obtained, and the thicknesses of the three layers are 20 / 240 / 20 microns respectively.

[0090] Then, the prepared laminated film la...

Embodiment 3

[0097] Adopt ordinary extrusion grade PHMA polymaleic anhydride plastic particles, add 15% polymethyl methacrylate PMMA and add 5% silicon carbide SiC through surface treatment, as inorganic filler, through twin-screw extruder 6 at 200 Extrude, mix and granulate at a temperature of about ℃ to prepare PHMA mixture plastic particles as materials for the second film layer and the third film layer. Using polyamide 1010, adding 20% ​​ethylene methyl acrylate copolymer EMA, 5% surface-treated silicon carbide SiC and 0.2% heat stabilizer, 0.1% light stabilizer and 0.1% plasticizer, through a twin-screw extruder 6 Extrude, mix and granulate at a temperature of about 260°C to prepare nylon mixture plastic particles as the base film material.

[0098] All the other preparation techniques are the same as in Example 1. Thus, a PHMA / nylon / PHMA three-layer laminated film is obtained, and the thicknesses of the three layers are 25 / 235 / 25 microns respectively.

[0099] Then, the prepared la...

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Abstract

The invention provides a solar cell assembly backplane, belonging to the technical field of solar energy. The solar cell assembly backplane comprises a base film layer as well as a second film layer and a third film layer arranged at two sides of the base film layer. The solar cell assembly backplane is characterized in that: the base film layer as well as the second film layer and the third film layer arranged at two sides of the base film layer are directly composited into one film through a melting co-extrusion process. At the same time, the invention also provides a preparation method of the solar cell assembly backplane. According to the invention, the use of an adhesive is avoided; and the preparation process of the solar cell assembly backplane can be completed by a single step with simple and efficient techniques; and the solar cell assembly backplane is advantaged in improved processing-shaping performance, mechanical properties, barrier properties and aging resistance performance.

Description

technical field [0001] The invention belongs to the technical field of solar energy, and in particular relates to a back plate of a solar battery module and a preparation method thereof. Background technique [0002] At present, the main energy for human beings comes from fossil energy, including oil, coal and natural gas, but in the next hundred years or so, fossil energy will be exhausted, and in the process of using fossil energy, a large amount of carbon dioxide will be emitted, changing the atmosphere Composition of gases, causing the deterioration of the earth's climate. Green renewable energy without environmental pollution is the only way to solve human energy challenges and low carbon emissions. Solar power is one of the most important green renewable energy sources. At present, all countries in the world regard the development of solar power generation as a national energy strategy, and vigorously encourage and promote the development of solar power generation. ...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/18B32B27/08B32B27/30B32B27/36H01L31/049
CPCY02E10/50Y02P70/50
Inventor 刘学习
Owner DSM SUNSHINE SOLAR TECH (SUZHOU) CO LTD
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