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Method and equipment for electrochemically depositing metal pattern

A technology for depositing metal and deposition equipment, which is applied in the field of solar cells, can solve the problems of large footprint and easy generation of fragments, and achieve the effects of small footprint, less potion configuration, and large production capacity

Pending Publication Date: 2021-05-28
GOLD STONE (FUJIAN) ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Copper metal electrodes are generally produced by gantry electroplating, vertical continuous electroplating, etc. This type of equipment requires a large footprint, and at the same time requires more complex fixtures to achieve metal deposition
The thickness of solar cells is generally 120-180um, and it is easy to produce fragments in the process of using fixtures

Method used

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  • Method and equipment for electrochemically depositing metal pattern
  • Method and equipment for electrochemically depositing metal pattern
  • Method and equipment for electrochemically depositing metal pattern

Examples

Experimental program
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Embodiment

[0043] Take the fabrication of metal grid wire electrodes on the surface of solar cells as an example.

[0044] The solar cells (that is, the substrate 7) are conveyed in a horizontal manner, and at the same time, the conductive tape 8 and the photosensitive film 14 are bonded to the upper and lower surfaces of the solar cells through the film roller 9 to form a string of solar cells; after the film is pasted, the horizontal transfer To the exposure device 2, after the exposure machine performs automatic positioning, it exposes on both sides of the area where the solar cell is located, and completes the graphic transfer; after exposure, the solar cell is horizontally transferred to the development device 3 for double-sided development, and the required grid pattern Developed; then horizontally transported to the metal deposition equipment 4, using the cathode fixing assembly 12 to connect the entire string of battery sheets, the cathode fixing assembly 12 can not only provide e...

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Abstract

The invention relates to a method for electrochemically depositing a metal pattern. The method comprises the following specific steps: A, horizontally arranging sheets; B, pasting a film into a string; C, horizontal exposure; D, developing and forming; E, electrochemical deposition; F, removing the film and etching; and G, cleaning a finished product. The invention aims to provide the method and the equipment for electrochemical deposition of the metal pattern, which can realize horizontal production on the whole line, have low fragment rate, can realize high degree of full automation, have high productivity and have good production operation environment.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a method and equipment for electrochemically depositing metal patterns. Background technique [0002] With the rapid development of the photovoltaic industry, the industrial preparation technology of solar cells is becoming more and more diversified, and the cost of cell manufacturing is also lower than that of traditional high-temperature printing processes. The process of using electrochemical deposition metal is a simple method, which can form copper metal electrodes on the surface of solar cells, and the resistivity is much lower than the current traditional silver paste printed electrodes, with good contact resistance and filling factor; At the same time, the morphology of the copper metal electrode has good plasticity, good aspect ratio and so on. [0003] Copper metal electrodes are generally produced by gantry electroplating, vertical continuous electroplating, etc. This type ...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L31/0224
CPCH01L31/022425H01L31/18Y02P70/50
Inventor 陈伟文杨与胜
Owner GOLD STONE (FUJIAN) ENERGY CO LTD
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