Silicon solar cell and manufacturing method thereof

A technology of silicon solar cells and manufacturing methods, which is applied in the field of solar cells, and can solve problems such as the cells cannot generate electricity normally, the number of cells is small, and the power of unfavorable components, etc.

Pending Publication Date: 2019-08-20
RISEN ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the larger chip spacing makes the number of cells that can be placed in a unit area less, which is not conducive to the improvement of module power
[0004] In addition, when the main grid lines of the cell are opened in the existing processing process, due to the limitation of the p...

Method used

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  • Silicon solar cell and manufacturing method thereof
  • Silicon solar cell and manufacturing method thereof
  • Silicon solar cell and manufacturing method thereof

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Embodiment Construction

[0033] Below, the invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, on the premise of no conflict, the various embodiments described below or the technical features can be combined arbitrarily to form a new embodiment. .

[0034] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0035] Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper...

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PUM

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Abstract

The invention discloses a silicon solar cell and a manufacturing method thereof. The silicon solar cell comprises a plurality of cell slices and a plurality of solder strips. Wherein the battery pieceslices are provided with through holes, the adjacent battery piece slices are connected through welding strips, the welding strips penetrate through the through holes, the two ends of each welding strip are welded to the front faces and the back faces of the two adjacent battery piece slices respectively, namely one end of each welding strip is welded to the front face of one battery piece slice,and the other end of each welding strip is welded to the back face of the other adjacent battery piece slice. According to the battery piece assembly, the distance between the battery piece slices isgreatly reduced, more battery pieces can be placed under the same area, the power of the battery piece assembly is increased, meanwhile, the height difference between every two adjacent battery pieceslices is avoided, and the situation that the welding strip extrudes the edges of the battery pieces under the action of external force, and consequently hidden cracks occur is effectively prevented.

Description

technical field [0001] The invention relates to the field of solar cells, and more specifically relates to a silicon solar cell and a manufacturing method thereof. Background technique [0002] Solar cell power generation is an environmentally friendly power generation method. The power generation process will not produce greenhouse gases such as carbon dioxide and will not pollute the environment. At present, solar cells made of crystalline silicon are the mainstream of the industry. [0003] The existing conventional cell laser cutting method is to vertically cut the cell in half or cut the cell into large and small pieces, and the cut cell is then welded in strings and made into a photovoltaic module. Cells cut by laser cutting in this way must maintain a certain spacing between the slices during the string welding process, so as to prevent the welding ribbon from being bent and cause a height difference between the battery slices, thereby preventing the welding ribbon f...

Claims

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Application Information

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IPC IPC(8): H01L31/05H01L31/0224H01L31/18
CPCH01L31/022425H01L31/0508H01L31/1804Y02E10/547Y02P70/50
Inventor 胡剑鸣刘增胜王建孙海亮
Owner RISEN ENERGY
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