| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem of a cell cracking by concentrating stresses caused by a difference in the coefficient of thermal expansion by overlapping a collecting electrode part and an electrode leadout part or that the cell is cracked by solder stacking. SOLUTION: Different conductive regions are formed on one principal surface side and the other principal surface side of a semiconductor wafer, a surface electrode is formed on one principal surface side, and a rear surface electrode composed of the band-shaped electrode leadout part and the collecting electrode part formed on the part except for this electrode leadout part is formed on the other principal surface side. In such a solar battery, the peripheral edge part of the electrode leadout part of the rear surface electrode is provided close to the collecting electrode part, so as not to overlap with the collecting electrode part and the collecting electrode part is connected striding the electrode leadout part at a plurality of spots in the lengthwise direction of the electrode leadout part.</p> |
