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Encapsulation method for dye sensitization solar cell

A technology of solar cells and encapsulation methods, which is applied in the fields of capacitor casing/encapsulation, photovoltaic power generation, electrical components, etc., can solve the problems of poor encapsulation effect and strong corrosion of encapsulation materials, and achieve shorten encapsulation time, strong adhesive performance, The effect of high coating accuracy

Inactive Publication Date: 2009-02-25
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the global emphasis on solar cells, solar cell technology has also made great progress, so the requirements for the packaging process of solar cells are getting higher and higher, and the existing technology uses liquid electrolytes, which have strong oxidizing properties. , so it is very corrosive to the packaging material and the packaging effect is not good

Method used

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  • Encapsulation method for dye sensitization solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1) First, on the FTO conductive glass that will be used as the platinum electrode substrate, a through hole is made perpendicular to the glass surface, and the hole diameter of the through hole is 1mm, so that the electrolyte can be poured after the battery is packaged;

[0023] 2) Use a 300-mesh screen to print titanium dioxide on the FTO conductive glass for making the photoanode to make a rectangular sheet film, the thickness is generally controlled at about 25 microns, and leave a gap of 5 mm between each titanium dioxide sheet film;

[0024] 3) Sinter the printed titanium dioxide flake film from room temperature to 450°C, and control the heating rate at 5°C / min, and keep it at 450°C for 30 minutes, and then let it naturally and slowly cool down to room temperature. Sintering is completed at room temperature;

[0025] After the sintering is completed, the titanium dioxide flake film is taken out and soaked in N3 dye for 18 hours.

[0026] 4) Use screen printing tec...

Embodiment 2

[0030] 1) First, on the FTO conductive glass that will be used as the platinum electrode substrate, a through hole is made perpendicular to the glass surface, and the hole diameter of the through hole is 1.5 mm, so that the electrolyte can be poured after the battery is packaged;

[0031] 2) Use screen printing technology (screen selection 300 mesh) to print titanium dioxide on the FTO conductive glass for making photoanodes. The titanium dioxide is printed into several rectangular sheet films and pasted on the FTO conductive glass. The thickness is controlled at About 25 microns, leave a gap with a width of 4mm between each titanium dioxide film to facilitate wiring and packaging;

[0032] 3) Sinter the printed titanium dioxide film, specifically: gradually heat the temperature of the FTO conductive glass printed with titanium dioxide film from room temperature to 450°C in 2.5 hours, and keep this temperature for 40 minutes, and then naturally and slowly lower it to room tempe...

Embodiment 3

[0037] 1) First, on the FTO conductive glass that will be used as the platinum electrode substrate, a through hole is made perpendicular to the glass surface, and the hole diameter of the through hole is 0.5mm, so that the electrolyte can be poured after the battery is packaged;

[0038] 2) Use screen printing technology to print titanium dioxide on the FTO conductive glass for making photoanodes, wherein the screen selection is 300 mesh, and the titanium dioxide is printed into several rectangular sheet films and pasted on the FTO conductive glass. The thickness of the titanium dioxide film is Control it at about 26 microns, leave a gap with a width of 4mm between each titanium dioxide film to facilitate wiring and packaging;

[0039] 3) Sintering the printed titanium dioxide film, specifically: gradually heating the temperature of the FTO conductive glass printed with the titanium dioxide film from room temperature to 500°C in 2 hours, and maintaining this temperature for 30 ...

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Abstract

The invention discloses an encapsulation method of a dye-sensitized solar cell, which comprises the following steps: making through holes on a piece of FTO conductive glass to be used as a platinum electrode substrate, wherein the through hole is perpendicular to the surface of the conductive glass; utilizing the screen printing technology to print titanium dioxide on the FTO conductive glass, on which a photo anode is manufactured; sintering well-printed titanium dioxide films; after the sintering, adopting the screen printing technology to print a UV curing glue in a clearance position between the thin films; the platinum electrode substrate is covered and then conducting UV curing so as to encapsulating each block of titanium dioxide; injecting electrolyte in the through holes on the FTO glass serving as the platinum electrode substrate; and utilizing the UV glue to encapsulate all through holes. The encapsulation method has the advantages of having relatively high coating precision and simple process, greatly shortens the encapsulation time and improves the production efficiency.

Description

technical field [0001] The invention belongs to the field of solar cell production, and relates to a packaging method for solar cells, in particular to a packaging method for dye-sensitized solar cells. Background technique [0002] According to the statistics of Dataquest, currently 136 countries in the world are in the upsurge of popularizing and applying solar cells, among which 95 countries are conducting large-scale research and development of solar cells and actively producing various related new energy-saving products. In 1998, the total power generation capacity of solar cells produced in the world reached 1,000 megawatts, and in 1999 it reached 2,850 megawatts. In 2000, nearly 4,600 manufacturers in the world provided photovoltaic cells and products powered by photovoltaic cells to the market. [0003] At present, many countries are formulating medium and long-term solar energy development plans, preparing to develop solar energy on a large scale in the 21st centur...

Claims

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Application Information

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IPC IPC(8): H01G9/08H01G9/20H01G9/04H01M14/00
CPCY02E10/542
Inventor 高瑞兴
Owner IRICO
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