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A method for manufacturing a solar cell and a solar cell sintering device

A technology of solar cells and manufacturing methods, which is applied to the manufacture of circuits, electrical components, and final products, and can solve problems such as difficulty in reducing the warpage of solar cells

Active Publication Date: 2020-10-02
ZHEJIANG JINKO SOLAR CO LTD +1
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solar cell manufacturing method, a solar cell sintering device and a solar cell to solve the problem in the prior art that it is difficult to reduce the warpage of the solar cell without reducing the weight of the back field slurry

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  • A method for manufacturing a solar cell and a solar cell sintering device
  • A method for manufacturing a solar cell and a solar cell sintering device
  • A method for manufacturing a solar cell and a solar cell sintering device

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specific Embodiment approach

[0031] The core of the present invention is to provide a method for manufacturing a solar cell, and a schematic flow chart of a specific implementation thereof is as follows: figure 1 As shown, it is called the first specific implementation mode, including:

[0032] Step S101: performing texturing, diffusion and etching on the substrate in sequence.

[0033] Step S102: printing paste on the etched substrate surface to obtain a solar cell to be sintered.

[0034] Step S103: Sintering the above-mentioned solar cell to be sintered, during the above-mentioned sintering process, applying an airflow to the surface of the above-mentioned solar cell to be sintered, so that the above-mentioned airflow forms an airflow perpendicular to the surface of the above-mentioned solar cell to be sintered on the surface of the above-mentioned solar cell to be sintered stress, to obtain the above-mentioned solar cell.

[0035] Furthermore, the airflow stress on the surface of the solar cell to b...

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Abstract

The invention discloses a manufacturing method of a solar battery, which comprises the steps of: sequentially carrying out texturing, diffusion and etching on a matrix; printing a sizing agent on thesurface of the etched matrix to obtain a to-be-sintered solar battery; and carrying out sintering on the to-be-sintered solar battery, and int he sintering process, applying gas flow to the surface ofthe to-be-sintered solar battery, enabling the gas flow to form a gas flow stress perpendicular to the surface of the to-be-sintered solar battery on the surface of the to-be-sintered solar battery,so as to obtain the solar battery. According to the invention, the stress formed by the gas flow and a sintering stress generated in the sintering process of the solar battery reach balance to the greatest extent so as to inhibit a warping phenomenon of the solar battery in the sintering process, which is generated due to the sintering stress, meanwhile, ensure a passivation effect on the solar battery and promote battery efficiency. Meanwhile, the invention also provides a solar battery sintering device and a solar battery which have the above-mentioned beneficial effects.

Description

technical field [0001] The invention relates to the field of new energy, in particular to a solar cell manufacturing method, a solar cell sintering device and a solar cell. Background technique [0002] Solar energy, as a renewable energy source, has been valued by the whole world since the early days of its invention. After entering the 21st century, more and more solar cell power generation technologies have been developed. Because solar energy is relatively stable and has zero pollution, it is especially favored by the majority of practitioners. Favor, the existing solar cell manufacturing process mainly includes texturing, forming a light-trapping structure on the surface to increase light absorption; diffusion, forming a PN junction on the surface of the cell; etching, removing the cell edge junction to prevent battery leakage; coating, plating on the front of the cell The upper layer of anti-reflection film reduces the reflection of light; screen printing, printing ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 黄纪德龚宇琦夏志鹏曹瑞宏
Owner ZHEJIANG JINKO SOLAR CO LTD
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