A solar cell electrode printing screen

Abstract

The invention discloses a solar energy battery electrode printing screen plate which comprises a metal type screen frame, a silk screen and a screen plate body. The screen plate body is divided into an upper layer thin sheet and a lower layer thin sheet, wherein the upper layer thin sheet and the lower layer thin sheet are both metal thin sheets. A surface of the screen plate body is in a flat shape. A printed pattern is arranged on a scraper face of an operation zone of the upper layer metal thin sheet. Screen holes are formed in the printed pattern. The screen holes can be arranged to any shape. A printed pattern is arranged on a facing silicon face of an operation zone of the lower layer metal thin sheet and an opening of the facing silicon face of the operation zone of the lower layer metal thin sheet is completely opened. The solar energy battery electrode printing screen plate is in a state of combination of the double-layer metal screen plate, the surface of the screen plate body is smooth, deformation of the metal plate is small in the process of printing and due to the special double-layer structure, grid lines obtained after printing by once are even and smooth. In addition, a traditional sensitization polymer is not adopted by the solar energy battery electrode printing screen plate, damage to the solar energy battery electrode printing screen plate by electric conduction slurry is not large and high repeatability can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of crystalline silicon solar cell production, and in particular relates to a solar cell electrode printing screen. Background technique [0002] With the rapid development of the economy, the consumption of energy is increasing, and the storage of non-renewable resources such as coal and oil is decreasing day by day, which prompts people to pay attention to new energy sources (such as nuclear energy, solar energy, wind energy, biomass energy, geothermal energy, ocean energy, hydrogen energy, etc.) Among them, as the source of many energy sources on the earth, solar energy occupies an important position in the research of new energy sources. The development of solar cell technology is getting faster and faster. Although its cost is much higher than that of traditional forms of power generation such as thermal power, but In the 21st century when a low-carbon economy is vigorously advocated, the research on ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above problems, the purpose of the present invention is to provide a solar cell electrode printing screen, to solve the traditional printing screen printing fine grid line diameter is not uniform, the printing thickness is not easy to control, and the photopolymer of the composite screen is soft and hard. Small, easy to damage and other issues

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