Solar battery front surface silver paste and preparation method therefor

A technology for solar cells and silver paste, which is applied in the manufacture of cables/conductors, circuits, electrical components, etc., can solve the problem of the need to enhance the conversion rate of light energy to electric energy, and achieve the effect of improving the conductivity, increasing the viscosity and simple components.
CN107316673AInactive Publication Date: 2017-11-03JURONG GCL SYST INTEGRATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
JURONG GCL SYST INTEGRATION TECH CO LTD
Publication Date
2017-11-03
Estimated Expiration
Not applicable ยท inactive patent
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Abstract

The invention discloses a front silver paste of a solar cell and a preparation method thereof. The silver paste includes the following raw materials: graphene, conductive silver powder, adhesive, cow dung oil, polypropylene alcohol, ethyl acetate, straw powder, sodium EDTA, antioxidant, leveling agent, and anti-aging agent. Preparation method: weigh the raw materials, immerse the graphene in cow dung oil, freeze-dry it, grind it for later use; prepare conductive silver powder, polypropanol, ethyl acetate, straw powder, sodium EDTA, antioxidant, fluid After the leveling agent and the anti-aging agent are evenly mixed, put them into the ball mill, then add the spare materials and adhesives in step 1, and stir to obtain a positive silver paste. In the present invention, graphene and cow dung oil are mixed and modified to improve the electrical conductivity of the graphene. In addition, the graphene has good physical properties, can improve the compressive resistance of the cured front electrode, and reduce the damage caused by friction during the use of the solar cell. question.
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Description

technical field

[0001] The invention belongs to the field of solar cell electrode materials, and in particular relates to a solar cell front silver paste and a preparation method thereof. Background technique

[0002] With the development of society, the consumption of energy is increasing. As an inexhaustible green energy, solar energy is very popular among people. In order to draw out the photoelectric current generated by the solar cell, positive and negative electrodes must be made on the surface of the solar cell.

[0003] The Chinese patent application number 201310343935.5 discloses a front silver paste for silicon solar cells, and specifically discloses that the front silver paste is made of the following raw materials in weight percentage: organic carrier 4.8-20, silver powder 80-95, glass powder 0.1-10 , Inorganic additives 0.1-10. The silver paste improves the conversion efficiency, which can meet the performance requirements of the battery sheet, and the prod...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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