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Organic adhesive composite used for silicon solar cell silver paste and preparation method thereof

A technology of silicon solar cells and organic adhesives, applied in conductive materials, applications, circuits, etc. dispersed in non-conductive inorganic materials, can solve the problems of poor economy and high production costs, and achieve improved electrical conductivity and increased electrical conductivity. , the effect of improving the aspect ratio

Inactive Publication Date: 2012-01-04
IRICO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used electrode manufacturing processes include magnetron sputtering, vacuum evaporation and screen printing sintering, etc., but the production costs of magnetron sputtering and vacuum evaporation methods are too high and the economy is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The parts by mass of each component of the organic adhesive composition are: polyamide resin UNI-REZ26655%, rosin resin AQUATAC 608525%, butyl carbitol acetate 70%.

[0013] The preparation steps of the above-mentioned organic adhesive composition: Put the above-mentioned components into the reaction kettle, use a water bath to heat to 80°C, and use an electric mixer to stir at a stirring speed of 100 rpm. After the temperature rises, keep the temperature for 4 hours until the reaction The resin in the kettle is completely dissolved, and each component is in a homogeneous phase. After the obtained organic binder composition is cooled, it is filtered through a 400-mesh screen to obtain a finished organic binder for silicon solar cell aluminum paste.

Embodiment 2

[0015] The parts by mass of each component of the organic adhesive composition are: polyamide resin VERSAMID 97211%, phenolic modified terpene resin SYLVARES TP 20408%, butyl carbitol 80%, wetting and dispersing agent BYK-P104S 1% . The preparation steps of the above-mentioned organic adhesive composition: put each component into the reaction kettle, heat to 70°C with a water bath, and stir with an electric mixer at a stirring speed of 150 rpm, and keep the temperature for 5 hours after the temperature rises until the reaction The resin in the kettle is completely dissolved, and each component is in a homogeneous phase. After the obtained organic binder composition is cooled, it is filtered through a 400-mesh screen to obtain a finished organic binder for aluminum paste for silicon solar cells.

Embodiment 3

[0017] The parts by mass of each component of the organic adhesive composition are: polyamide resin VERSAMID 94013%, rosin resin SYLVALITE RE 100F 21%, butyl carbitol 65%, and wetting and dispersing agent BYK-P1101%.

[0018] The preparation steps of the above-mentioned organic binder composition: put each component into the reaction kettle, heat to 85°C with a water bath, and stir with an electric mixer at a stirring speed of 150 rpm, and keep the temperature for 5 hours after the temperature rises until the reaction The resin in the kettle is completely dissolved, and each component is in a homogeneous phase. After the obtained organic binder composition is cooled, it is filtered through a 400-mesh screen to obtain a finished organic binder for aluminum paste for silicon solar cells.

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PUM

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Abstract

The invention provides an organic adhesive composite used for silicon solar cell silver paste, comprising the following raw materials according to parts by weight: 5-13% of polyamide resin, 8-25% of abietic resin or phenolic aldehyde modified terpene resin, 65-80% of organic solvent and 0-1% of wetting dispersant. The organic adhesive composite exists in silver paste to serve as a carrier or dispersion medium, proper fluid performance is endowed to slurry to fully wet silver powder or inorganic adhesive powder in the wetting silver paste, and the slurry can be dissolved with other accessory ingredients in a mixed mode.

Description

technical field [0001] The invention relates to the field of silicon solar cells, in particular to an organic binder composition for silicon solar cell silver paste and a preparation method thereof Background technique [0002] A solar cell is a semiconductor device that can convert solar energy into electrical energy. Under the condition of light, a photogenerated current will be generated inside the solar cell, and the electrical energy can be directly output through the electrodes. [0003] In order to extract the photo-generated current generated by the solar cell, positive and negative electrodes must be made on the surface of the solar cell. Commonly used electrode manufacturing processes include magnetron sputtering, vacuum evaporation and screen printing sintering, etc., but the production costs of magnetron sputtering and vacuum evaporation methods are too high and the economy is poor. At present, in solar cell production enterprises, conductive silver paste for so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L93/04C08L45/00C08L77/00C09D11/08C09D11/10H01B1/22H01L31/0224C09D11/102C09D11/52
Inventor 朱万超
Owner IRICO
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