Repairing method for laser marking-off anomaly of solar cell panel and solar cell panel

Abstract

The invention relates to the technical field of solar power generation and in particular relates to a repairing method for laser marking-off anomaly of a solar cell panel and the solar cell panel, aiming at solving the problems in the prior art that single cells are short-circuited due to the laser marking-off anomaly, even the solar cell panel is confronted with scraping. According to the repairing method for the laser marking-off anomaly of the solar cell panel, the solar cell panel is divided into a plurality of the single cells which are connected in series along a first direction throughlaser marking-off; the method comprises the following steps: determining a marking-off position of a first short-edge insulation line again according to a position of a region with the laser marking-off anomaly; marking off the insulation line again at the marking-off position of the first short-edge insulation line, which is determined again, so as to obtain a second short-edge insulation line toisolate the region with the laser marking-off anomaly from a region enclosed by the second short-edge insulation line and other original insulation lines except the first short-edge insulation line,wherein the first short-edge insulation line is any one short-edge insulation line parallel to a first direction in the original insulation lines.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a method for repairing abnormal laser marking lines of a solar battery panel and a solar battery panel. Background technique [0002] In the production process of solar panels, laser scribing and three-layer coating is one of the important links, so as to divide a large solar panel into multiple single cells connected in series in order to increase the output voltage of the solar panel. [0003] see figure 1 , figure 2 with image 3 , There are three layers on the substrate 1 of the solar cell panel: the conductive film layer 2 of the front electrode, the photoelectric conversion layer 3 and the conductive film layer 4 of the back electrode. In the actual production process, when the front electrode conductive film layer 2 is formed by coating on the substrate 1, the front electrode conductive film layer 2 is scribed by the first laser scribe line to form a P1 ...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for repairing abnormal laser marking lines of solar panels and a solar battery panel. By re-scoring the short-side insulating wires, the abnormal area of ​​laser marking can be isolated from the area surrounded by the insulating wires. Outside the area, it solves the problem in the prior art that the abnormality of the laser scribe line makes the short circuit between the single cells and even makes the solar panel face the risk of scrapping

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