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Preparation method of dye sensitization battery auxiliary electrode

A dye-sensitized battery and auxiliary electrode technology, applied in the field of solar cells, can solve the problem of not completely solving the problem of electrolyte corrosion of auxiliary electrodes, and achieve the effects of ensuring long-term stability, ensuring flatness, and reducing production costs

Inactive Publication Date: 2012-09-19
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selected insulating layer materials, including polymer materials, glass materials, ceramic materials, etc., have not completely solved the problem of electrolyte corrosion of the auxiliary electrode.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] After cleaning the glass substrate with detergent and deionized water ultrasonically and blowing it dry, print a layer of 15 μm photosensitive adhesive against glass corrosion solution on the glass substrate, dry it at 60°C for 25 minutes, and expose it through a mask. Exposure is 600mJ / cm 2 , and then develop for 60s with a sodium carbonate developer solution with a mass percentage concentration of 0.2% at a temperature of 30°C, rinse repeatedly with deionized water for 10 minutes, and dry at 80°C for 10 minutes, covering the part of the glass substrate that does not need to be etched A layer of photosensitive glue.

[0015] Use a mixture of hydrofluoric acid and pure water with a mass percentage concentration of 40% and a mass ratio of 1:4 to etch the glass substrate at room temperature for 8 seconds, take it out and rinse it repeatedly with deionized water for 10 minutes, and then remove the glass substrate. The substrate was placed in a sodium hydroxide stripping s...

Embodiment 2

[0019] After cleaning the glass substrate with detergent and deionized water ultrasonically and drying it, print a layer of 45m thick photosensitive adhesive against glass corrosion solution on the glass substrate, dry it at 100°C for 20min, and expose it through a mask. Exposure is 800mJ / cm 2 , and then develop with 0.6% sodium carbonate developer at a temperature of 40°C for 20s, rinse with deionized water repeatedly for 10 minutes, and dry at 100°C for 10 minutes. A layer of photosensitive glue.

[0020] Use a mixture of hydrofluoric acid and pure water with a mass percentage concentration of 40% and a mass ratio of 1:4 to etch the glass substrate at room temperature for 30 seconds, take it out and rinse it repeatedly with deionized water for 10 minutes, and then remove the glass substrate. Put the substrate into a sodium hydroxide film stripping solution with a temperature of 55°C and a concentration of 0.6% by mass to react for 60 seconds, take it out and rinse it with d...

Embodiment 3

[0024] After cleaning the glass substrate with detergent and deionized water ultrasonically and drying it, print a layer of 30 μm photosensitive adhesive against glass corrosion solution on the glass substrate, dry it at 80°C for 20 minutes, and expose it through a mask. Exposure is 650mJ / cm 2 , and then develop for 40s with a sodium carbonate developer solution with a mass percentage concentration of 0.4% at a temperature of 35°C, rinse repeatedly with deionized water for 10 minutes, and dry at 80°C for 10 minutes. Cover the part of the glass substrate that does not need to be etched A layer of photosensitive glue.

[0025] Use a mixture of hydrofluoric acid and pure water with a mass percentage concentration of 40% and a mass ratio of 1:4 to etch the glass substrate at room temperature for 20 seconds, take it out and rinse it repeatedly with deionized water for 10 minutes, and then remove the glass substrate. Put the substrate into a sodium hydroxide film stripping solution...

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Abstract

The invention discloses a preparation method of a dye sensitization battery auxiliary electrode. The preparation method comprises the following steps: printing a layer photoresist capable of resisting glass corrosive liquid on a glass substrate, drying, exposuring, developing, flushing, and covering a layer of photoresist on the part, which does not need a sculptured graph, of the glass substrate; after carrying out sculpturing treatment, repeatedly flushing with deionized water, and forming the groove with a required graph on the glass substrate; printing a silver grid auxiliary electrode, carrying out sintering in a resistance furnace, and filling in the sculptured glass groove by use of the sintered silver grid auxiliary electrode; and transferring the manufactured auxiliary electrode graphic glass substrate to the cavity of a magnetic control sputtering instrument, and sputtering a layer of transparent indium tin oxide (ITO) conducting layer with the thickness of 200nm, thereby obtaining a prepared glass substrate used for a dye sensitization battery with an auxiliary electrode. The preparation method provided by the invention has the advantages that the silver grid auxiliary electrode is arranged between a transparent conductive film and the glass substrate, a metal auxiliary electrode is not contacted with an electrolyte, and the long term stability of a battery module is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a preparation method of an auxiliary electrode of a dye-sensitized cell. Background technique [0002] In the 1990s, the laboratory of the Ecole Polytechnique de Lausanne in Switzerland developed a brand new solar cell - the research results of the dye-sensitized cell, which immediately received widespread international attention and attention. Dye-sensitized solar cells are mainly composed of the following parts: transparent conductive substrate, porous nano-semiconductor film, dye sensitizer, electrolyte and counter electrode. [0003] At present, large-area battery modules are made of glass or other flexible substrates with transparent conductive films. In order to overcome the problem of large square resistance of transparent conductive films, metal or other high-conductivity materials are generally used on conductive substrates. As an auxiliary electrode, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/04H01G9/20H01M14/00H01L51/48
CPCY02E10/542Y02E10/549
Inventor 王香
Owner IRICO