Solar cell module and preparation method thereof

Abstract

The invention discloses a solar cell module and a preparation method thereof. The solar cell module comprises a plurality of battery strings, wherein each battery string comprises a plurality of battery pieces connected in series, a conductive structure arranged between every two adjacent battery pieces and a supporting heat transfer block; in every two adjacent battery pieces of the battery string, an overlapping region exists between the back surface of the first battery piece and the front surface of the second battery piece; one part or all of each conductive structure is located in a partial region of the corresponding overlapping region and is used for connecting the two adjacent battery pieces in series; and a part or all of the supporting heat transfer block is arranged in an area without the conductive structures in the overlapping area to dissipate heat of the battery pieces. The solar cell module effectively guarantees the stability, and prevents hidden crack damage; and the heat conduction efficiency of the solar cell module is improved, high temperature caused by a hot spot effect is reduced, the energy of the solar cell module is prevented from being excessively consumed due to overheat burnout or subfissure damage of a cell panel, and the power generation efficiency of the solar cell module is further improved.

Description

technical field [0001] The invention relates to a solar battery component and a preparation method thereof. Background technique [0002] Solar cell modules are usually composed of multiple battery strings connected in series, parallel or a combination of series and parallel. Each battery string can be formed by overlapping and connecting multiple battery sheets in series, such as lap-welded battery strings and shingled batteries. string etc. The battery sheets that are overlapped and connected in series can be fixed by conductive structures. [0003] Due to the existence of the conductive structure, the overlapping areas where the battery sheets overlap each other will not be able to fully fit each other, and the force will be uneven, which will cause the edges of the battery sheets to appear cracks or even cracks during the process of stacking and handling. In turn, the hot spot effect will be generated in the cracked part, which will cause local overheating of the solar...

AI Technical Summary

Problems solved by technology

[0003] Due to the existence of the conductive structure, the overlapping areas where the battery sheets overlap each other will not be able to fully fit each other, and the force will be uneven, which will cause the edges of the battery sheets to appear cracks or even cracks during the process of stacking and handling. This will lead to the hot spot effect in the cracked part, which will cause local overheating of the solar panel, and the temperature will rise sharply and burn out.

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