Combined printing method of battery sheet and battery sheet
A combination of printing and cell technology, applied in printing, printing process, printing of special varieties of printed matter, etc., can solve the problems of low current transmission efficiency, excessive height difference between the main grid and the auxiliary grid, etc., and improve the current transmission efficiency , reduce the height difference, increase the effect of contact area
Active Publication Date: 2022-06-17
晶科能源(海宁)有限公司 +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem solved by the embodiments of the present invention is to provide a combined printing method for battery sheets and battery sheets, which solve the problems of excessive height difference between the main grid and the auxiliary grid and low current transmission efficiency while improving the aspect ratio of the sub-grid
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] It can be known from the background art that, while improving the aspect ratio of the sub-gate in the prior art, it faces the problems that the height difference between the main gate and the sub-gate is too large and the current transfer efficiency is low.
[0029] In order to improve the aspect ratio of the auxiliary grid, when the height of the main grid is made low, the height of the auxiliary grid can be made higher, but the height difference between the main grid and the auxiliary grid is too large, which will lead to virtual gaps between the cells and the cells. The welding phenomenon affects the conductivity between the cells, and the welding yield is low. In addition, due to the reduction of the height of the main gate, the contact area between the main gate and the sub-gate is reduced, the current transfer efficiency between the main gate and the sub-gate is reduced, and the collection efficiency of the current collected by the main gate to the sub-gate is furt...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An embodiment of the present invention provides a combined printing method of a battery sheet and a battery sheet. The combined printing method of a battery sheet includes: providing a battery sheet substrate; In the extension direction of the main grid, there are multiple first gaps arranged at intervals on both sides of each main grid; then a plurality of sub-grids are printed on the battery substrate, and the extension direction of the sub-gates is perpendicular to the extension direction of the main grid. In the direction perpendicular to the cell substrate, the height of the sub-gate is greater than that of the main grid, and the sub-gate is at least located between two adjacent main grids, and the two ends of the sub-gate are respectively filled with one of the two adjacent main grids. First notch. The embodiments of the present invention are beneficial to reduce the height difference between the main gate and the sub-gate while increasing the aspect ratio of the sub-gate, and improve the current transmission efficiency between the main gate and the sub-gate.
Description
technical field [0001] The embodiments of the present invention relate to the technical field of photovoltaic equipment manufacturing, and in particular to a combined printing method of battery sheets and battery sheets. Background technique [0002] In the current photovoltaic industry, screen printing technology is widely used to form the grid structure of solar cells. The grid line structure of a solar cell includes a main grid and a sub-grid, and under the current trend of pursuing high-efficiency and low-cost solar cells, increasing the aspect ratio of the sub-grid is receiving more and more attention. [0003] However, in the traditional screen printing process, the same paste is usually used to print the main grid and the sub grid at the same time. In order to increase the height of the auxiliary grid to reduce the transfer resistance of the auxiliary grid, the height of the main grid will also increase accordingly. On the one hand, the increase in the height of the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/0224B41M1/12B41M3/00
CPCH01L31/18H01L31/022433B41M3/00B41M1/12Y02P70/50
Inventor 来俊男周国栋钱伟华潘鹏飞张昕宇金浩
Owner 晶科能源(海宁)有限公司