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Solar cell electrode printing screen, solar cell electrode and manufacturing method thereof

A technology of solar cells and screens, applied in printing, printing machines, rotary printing machines, etc., can solve problems such as easy misalignment of two grid lines, affecting photoelectric conversion efficiency of solar cells, and inaccurate calibration alignment

Active Publication Date: 2015-02-04
CSG PVTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the prior art, the calibration alignment of the screen printing machine is inaccurate. If the grid lines printed twice are not accurately aligned, the two grid lines will be easily misaligned, increasing the shading area and affecting the photoelectric conversion of the solar cell. efficiency

Method used

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  • Solar cell electrode printing screen, solar cell electrode and manufacturing method thereof
  • Solar cell electrode printing screen, solar cell electrode and manufacturing method thereof
  • Solar cell electrode printing screen, solar cell electrode and manufacturing method thereof

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Embodiment Construction

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

A solar cell electrode printing screen comprises a first screen and a second screen; the first screen comprises a first template; a plurality of first thin grids are formed in the first template; the first template is provided with alignment holes and wedge-shaped holes; the second screen comprises a second template; the second template is provided with a plurality of second thin grids and main grids; the second thin grids and the main grids are intersected; the distance between axes of the adjacent two second thin grids is equal to that between axes of the adjacent two first thin grids; the width of the second thin grids is smaller than or equal to that of the first thin grids; the main grids are provided with alignment portions; one ends of the main grids are provided with sharp corner hollow-outs; the shortest distance between edges of the alignment portions and end surfaces of the top ends of the sharp corner hollow-outs is equal to that between the edges of the alignment holes and the edges of the wedge-shaped holes. According to the solar cell electrode printing screen, substrates after the second screen and the first screen are printed are accurately aligned and dislocation of a thin grid line during printing at the second time and a thin grid line during printing at the first time is avoided. The invention also provides a solar cell electrode and a manufacturing method thereof.

Description

technical field [0001] The invention relates to a printing screen for a solar cell, in particular to a secondary printing screen for a solar cell electrode and a solar cell electrode. Background technique [0002] There are two ways to use solar energy: passive use of photothermal conversion and photoelectric conversion. Solar power is an emerging renewable energy source. The solar power generation system is composed of a solar cell group, a solar controller, and a storage battery (group). A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Solar cells are the core part of the solar power generation system, and also the most valuable part of the solar power generation system. Its function is to convert the solar energy into electrical energy, or store it into the battery, or promote work load. The quality and cost of solar cells will directly determine the quality and cost of the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224B41F15/36H01L31/18
CPCB41F15/36H01L31/022425H01L31/18Y02E10/50Y02P70/50
Inventor 祁嘉铭付冲叶雄新孙小菩彭华
Owner CSG PVTECH
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