Cutting equipment and cutting method of flexible thin film solar cell

Abstract

The invention discloses cutting equipment of a flexible thin film solar cell. The cutting equipment comprises an uncoiling mechanism, a conveying mechanism, a scoring mechanism, a cutting mechanism, a finished product coiling mechanism, a leftover coiling mechanism and a control system, wherein the control system is used for controlling the respective work of the uncoiling mechanism, the conveying mechanism, the scoring mechanism, the cutting mechanism, the finished product coiling mechanism and the leftover coiling mechanism. The invention also discloses a method for cutting the flexible thin film solar cell by the cutting equipment. The method comprises the following steps of uncoiling a cell to be cut, receiving and conveying the cell to be cut by the conveying mechanism, sequentially scoring and cutting the cell to be cut, coiling the obtained finished product by the finished product coiling mechanism, and coiling the cut leftovers by the leftover coiling mechanism. The cutting equipment and the cutting method have the advantages that the short-circuiting of the thin film solar cell caused by cutting can be thoroughly avoided by the cutting method; the automation degree is high, and the qualified rate of the flexible thin film solar cell and the production efficiency are improved; the material consumption amount is little, and the production cost is low; and the splitting process is simple, the equipment is simple, and the operation is convenient.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a cutting device and a cutting method for flexible thin-film solar cells. Background technique [0002] In recent years, demand for flexible and light-weight thin-film solar cells has increased as the demand for portable products has increased. Flexible and lightweight thin-film solar cells are usually produced by roll-to-roll process. However, the rolled flexible thin-film solar cells need to be slit during the production process. When cutting large-area or roll-shaped thin-film solar cells directly with a knife, it will cause Thin-film solar cells are short-circuited, and there is currently no reliable cutting method and equipment. [0003] When cutting, the upper blade touches the TCO material, and the lower blade touches the lower surface of the substrate (such as figure 2 shown). As the depth of blade embedding increases, the TCO material first breaks, and the semiconductor sub...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of battery short circuit and battery efficiency degradation that are easily caused during the cutting process of flexible thin film solar cells in the prior art, the present invention provides a cutting device for flexible thin film solar cells, which can completely eliminate battery short circuit and efficiency drop caused by cutting , improve the yield rate and production efficiency, reduce the waste of battery raw materials, and reduce production costs

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