Patent ID: 8729384
Filing Date: 2014-05-20
Classification: H01L,Y02E

Abstract:
1. A solar cell module comprising: a plurality of solar cells each including a substrate, an emitter region which is positioned at a back surface of the substrate and forms a p-n junction along with the substrate, first electrodes electrically connected to the emitter region, second electrodes electrically connected to the substrate, the first electrodes and the second electrodes being alternately disposed to be spaced apart from each other, a first current collector which is positioned in a direction crossing the first electrodes and connects the first electrodes to one another, and a second current collector which is positioned in a direction crossing the second electrodes and connects the second electrodes to one another; and a first connector configured to connect a first current collector of a first solar cell of the plurality of solar cells to a second current collector of a second solar cell adjacent to the first solar cell, the first current collector of the first solar cell and the second current collector of the second solar cell each having a different polarity, wherein ends of the first current collector of the first solar cell consist of a first end and a second end, and ends of the second current collector of the second solar cell consist of a first end and a second end, wherein the first current collector of the first solar cell and the second current collector of the second solar cell are positioned on the back surface of the substrate, wherein a width of the first end of the first current collector of the first solar cell, which is adjacent to the second current collector of the second solar cell, among both the first end and the second end of the first current collector of the first solar cell, is greater than a width of the second end of the first current collector of the first solar cell, wherein as the first current collector of the first solar cell goes from the second end of the first current collector to the first end of the first current collector, a width of the first current collector gradually increases, and wherein the first current collector of the first solar cell and the second current collector of the second solar cell are disposed in a straight line.