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High-density film for solar battery back sheet

A solar cell, high-density technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems affecting the use of solar panels, large holes in the film layer, low density of the back film, etc., to achieve excellent welding tension and increase leveling time. , the effect of reducing the series resistance

Inactive Publication Date: 2019-05-07
CHANGZHOU HUITIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The back film of the solar cell panel is located on the back side of the solar cell panel, which plays a role of protection and support for the battery sheet. In the prior art, the back film has poor weather resistance and aging resistance and large holes in the film layer during use. And the structure is loose and porous, resulting in low density of the back film and low welding tension
Thus affecting the use of its battery board

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A high-density film for a solar cell backboard is characterized in that the composition of the high-density film for a solar cell backplane is as follows:

[0012] 5 parts of butyl rubber, 20 parts of polyvinylidene fluoride PVDF, 10 parts of methyl acrylate-butyl methacrylate copolymer, 4 parts of dipropylene glycol, 1 part of methyl isobutyl ketone, 5 parts of silver paste, carbon dioxide 5 parts of silicon, 5 parts of polyetherimide, 1 part of dimethylaminomethylphenol, 5 parts of carboxymethyl cellulose, 2 parts of polytrimethyldihydroquinoline, 0.2 parts of antioxidant DLTP, hindered amine light 2 parts of stabilizer, 0.5 parts of dioctyl ester. Wherein the silver paste includes terpineol, butyl diglycol acetate and tributyl citrate. The ratio of terpineol, butyl diglycol acetate and tributyl citrate is 2:2:3.

[0013] The high-density film for solar cell backplane with this ratio has a film layer density of 120kg / m³; a thermal deformation transverse shrinkage ra...

Embodiment 2

[0015] A high-density film for a solar cell backboard is characterized in that the composition of the high-density film for a solar cell backplane is as follows:

[0016] 8 parts of butyl rubber, 28 parts of polyvinylidene fluoride PVDF, 12 parts of methyl acrylate-butyl methacrylate copolymer, 6 parts of dipropylene glycol, 5 parts of methyl isobutyl ketone, 8 parts of silver paste, carbon dioxide 10 parts of silicon, 6 parts of polyetherimide, 5 parts of dimethylaminomethylphenol, 7 parts of carboxymethyl cellulose, 3 parts of polytrimethyldihydroquinoline, 0.5 parts of antioxidant DLTP, hindered amine light 6 parts of stabilizer, 1.0 parts of dioctyl ester. Wherein the silver paste includes terpineol, butyl diglycol acetate and tributyl citrate. The ratio of terpineol, butyl diglycol acetate and tributyl citrate is 2:2:3.

[0017] The high-density film for solar cell backplane with this ratio has a film layer density of 150kg / m³; a thermal deformation transverse shrinkage...

Embodiment 3

[0019] A high-density film for a solar cell backboard is characterized in that the composition of the high-density film for a solar cell backplane is as follows:

[0020] 10 parts of butyl rubber, 32 parts of polyvinylidene fluoride PVDF, 15 parts of methyl acrylate-butyl methacrylate copolymer, 10 parts of dipropylene glycol, 10 parts of methyl isobutyl ketone, 10 parts of silver paste, silicon dioxide 15 parts, 8 parts of polyetherimide, 9 parts of dimethylaminomethylphenol, 10 parts of carboxymethyl cellulose, 5 parts of polytrimethyldihydroquinoline, 1.0 parts of antioxidant DLTP, hindered amine photostable 8 parts of agent, 1.5 parts of dioctyl ester. Wherein the silver paste includes terpineol, butyl diglycol acetate and tributyl citrate. The ratio of terpineol, butyl diglycol acetate and tributyl citrate is 2:2:3.

[0021] The high-density film for solar cell backplane with this ratio has a film layer density of 180kg / m³; a thermal deformation transverse shrinkage rat...

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Abstract

The invention relates to the technical field of new energy sources, in particular to a high-density film for a solar battery back sheet. The high-density film for a solar battery back sheet comprisesthe components as follows: 5-10 parts of butyl rubber, 20-32 parts of polyvinylidene fluoride PVDF, 10-15 parts of methacrylate-butyl methacrylate copolymer, 4-10 parts of dipropylene glycol, 1-10 parts of methyl isobutyl ketone, 5-10 parts of silver paste, 5-15 parts of silica, 5-8 parts of polyetherimide, 1-9 parts of dimethylamino methylphenol, 5-10 parts of carboxymethylcellulose, 2-5 parts ofpolytrimethyldihydroquinoline, 0.2-1.0 parts of antioxidant DLTP, 2-8 parts of hindered amine light stabilizer and 0.5-1.5 parts of dioctyl ester. The silver paste includes terpineol, butyl diglycolacetate and tributyl citrate in a ratio of 2:2:3. The high-density film for a solar battery back sheet is resistant to heat, resistant to aging, good in water vapor resistance effect, high in weldingtension and good in photoelectric performance.

Description

technical field [0001] The invention relates to the technical field of new energy, in particular to a high-density film for a solar battery backplane. Background technique [0002] Solar panels are devices that directly or indirectly convert solar radiation energy into electrical energy through photoelectric or photochemical effects by absorbing sunlight, which solves the problems of global environmental pollution and energy shortages. The back film of the solar cell panel is located on the back side of the solar cell panel, which plays a role of protection and support for the battery sheet. In the prior art, the back film has poor weather resistance and aging resistance and large holes in the film layer during use. And the structure is loose and porous, resulting in low density of the back film and low welding tension. Thereby affecting the use of its battery board. Contents of the invention [0003] In order to overcome the deficiencies of the existing technology, the ...

Claims

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Application Information

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IPC IPC(8): H01L31/049
CPCY02E10/50
Inventor 汪江浪石娜
Owner CHANGZHOU HUITIAN NEW MATERIALS
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