Texturing apparatus and method for solar battery piece

Abstract

The invention relates to a texturing apparatus and method for a solar battery piece. The texturing apparatus comprises a loading mechanism and a liquid supplying apparatus, wherein the loading mechanism is used for fixing the solar battery piece and controlling the rotation of the solar battery piece when a to-be-textured surface of the solar battery piece is downward; the liquid supplying apparatus is placed below the loading mechanism and comprises a plurality of nozzles and a plurality of control elements; each nozzle is used for spraying a texturing liquid to a corresponding position on the to-be-textured surface of the solar battery piece; the multiple control elements are in one-to-one correspondence with the multiple nozzles; and each control element is used for controlling spraying flow of the texturing liquid of the nozzle corresponding to the control element. By adoption of the texturing apparatus and method for the solar battery piece, high texturing uniformity can be realized and product quality can be improved.

Description

technical field [0001] The invention relates to a texturing device and method for solar cells, in particular to a texturing device and method for solar cells. Background technique [0002] During the manufacturing process of crystalline silicon solar cells, it is necessary to go through a texturing process, that is, a certain thickness of substrate material is removed from the surface to form a pyramid-shaped surface. refer to figure 1 with figure 2 The traditional way of this method is to fix the solar battery sheet 11 on the processing table 15, and the top of the solar battery sheet 11 has a nozzle 13 to spray the texturing liquid downward. [0003] This method brings a problem of poor texturing uniformity, for example, in figure 1 Among them, the surface of the solar cell 11 is usually not completely smooth, but has certain unevenness. When the texturizing liquid is sprayed on the surface of the solar cell 11, the dosage of the concave and the convex is different, re...

AI Technical Summary

Problems solved by technology

[0003] This method brings a problem of poor texturing uniformity, for example, in figure 1 Among them, the surface of the solar cell 11 is usually not completely smooth, but has certain unevenness. When the texturizing liquid is sprayed on the surface of the solar cell 11, the dosage of the concave and the convex is different, resulting in uneven texture. , and the position close to the injection point is seriously textured

When the solar battery sheet 11 has graphic bumps, because there is more texturing liquid near the injection point, the bumps closer to the injection point are likely to cause severe chamfering, which affects the properties of the solar cell.

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