Solar cell electrode slurry, preparation method, cell electrode and solar cell

A technology of solar cells and electrode pastes, which is applied to conductive materials, circuits, electrical components, etc. dispersed in non-conductive inorganic materials, and can solve the problem of affecting the quality of silver-coated copper powder, performance characteristics and coating effect Insufficient stability and reliability, prone to hydrolysis and other problems, to achieve the effect of reducing material cost, reducing volume resistivity, and high density
CN105280265AInactive Publication Date: 2016-01-27ZHUHAI ROSSINI WATCH IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHUHAI ROSSINI WATCH IND
Publication Date
2016-01-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses one kind of solar cell electrode slurry comprising an organic carrier and silver powder, glass powder and an antifoaming agent which are dispersed in the organic carrier. The silver powder comprises micrometer silver particles, nanometer silver particles and silver nano wires which are 2-8 [mu]m in length and 100-200 nm in diameter, and silver nano wires account for 50-80% of the total mass of the silver powder. According to the invention, the silver powder mostly is prepared by the silver nano wires which are stable in preparation process and lower in cost relative to nanometer silver particles, so that the material cost of the electrode slurry is effectively lowered; in addition, gaps of the silver power can be filled by silver nano wires, micrometer silver particles and nanometer silver particles, so that conductive paths are added and a conductive network is formed, and the volume resistivity of the electrode material is lowered. At the same time, the invention further discloses a preparation method of the electrode slurry, and a cell electrode and a solar cell using the electrode slurry.
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Description

technical field

[0001] The invention relates to the field of batteries, in particular to a solar battery electrode paste, a preparation method, a battery electrode and a solar battery. Background technique

[0002] Solar cell conductive silver paste is mainly composed of silver powder (conductive phase or conductive filler), glass powder (bonding phase), organic vehicle and other additives (auxiliary materials) in a certain proportion. Silver powder is used as a conductive phase in silver paste, and its average particle size, content, and dispersibility all have a great influence on the performance of silver paste. First, the average particle size of the silver powder will affect the printing and sintering properties of the silver paste, thereby affecting the electrical performance of the solar cell. Studies have shown that if the average particle size of silver powder is large, it will block the screen during screen printing, so that the paste cannot leak through the scree...

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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