Solar cell panel

Abstract

A solar cell panel includes a first solar cell and a second solar cell; and a plurality of leads connecting the first solar cell and the second solar cell. Each of the first solar cell and the secondsolar cell includes: a first electrode including a plurality of finger lines in a first direction and a plurality of first bus bars in a second direction crossing the first direction; and a second electrode including a plurality of second bus bars in the second direction. The plurality of leads have a diameter or width of 100 to 500 [mu]m, and include 6 or more leads arranged at one surface side of the first or second solar cell. The plurality of leads are connected to the plurality of first bus bars of the first solar cell and the plurality of second bus bars of the second solar cell by a solder layer, respectively.

Description

technical field [0001] Embodiments of the present invention relate to solar cell panels, and more particularly, to solar cell panels including solar cells electrically connected to each other. Background technique [0002] Recently, as existing energy sources such as oil and coal are exhausted, interest in alternative energy sources has increased. In particular, solar cells have attracted attention as next-generation cells capable of converting solar energy into electrical energy. [0003] A plurality of solar cells are connected in series or in parallel through a plurality of ribbons, and then encapsulated by an encapsulation process to protect them, thereby forming a solar panel. [0004] Typically, solar cells are attached using tapes having a width of about 1.5 mm. Then, since the width of the tape is so large, a shading loss occurs. For this reason, the number of ribbons used for solar cells should be reduced. For example, the number of bands may be three. Therefor...

AI Technical Summary

Problems solved by technology

However, conductive adhesive films are expensive

In addition, a conductive adhesive film is respectively provided between the electrodes of the solar cell and the ribbon, and therefore, the process of attaching the ribbon to the electrode of the solar cell is complicated

More particularly, in consideration of light loss, if a large number of interconnects with a width smaller than the width of the tape are used instead of the tape, when using a conductive adhesive film, the processing cost and time will greatly increase

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