Patent ID: 8969708
Filing Date: 2015-03-03
Classification: H01L,Y02E

Abstract:
1. A solar cell module comprises: solar cells each including a straight-shaped bus bar electrode on one principal surface and a zig-zag-shaped bus bar electrode and a plurality of finger electrodes on an opposite principal surface, the one principal surface being a light receiving surface, wherein the plurality of finger electrodes are on an almost entire region of the opposite principal surface and the zig-zag-shaped bus bar electrode is in direct physical contact with the plurality of finger electrodes; and a conductive connecting member electrically connecting the straight-shaped bus bar electrode or the zig-zag-shaped bus bar electrode of one of the solar cells with the straight-shaped bus bar electrode or the zig-zag-shaped bus bar electrode of another solar cell, wherein the conductive connecting member includes a first principal surface in an uneven shape and a second principal surface in a flat shape which is opposite from the first principal surface, the straight-shaped bus bar electrode is connected to the second principal surface of the conductive connecting member, the zig-zag-shaped bus bar electrode is connected to the first principal surface of the conductive connecting member, the zig-zag-shaped bus bar electrode has a larger region width in a short-side direction of the conductive connecting member than that of the straight-shaped bus bar electrode and has first and second peaks on opposite sides wherein each first and second peak extends beyond the width of the conductive connecting member, and wherein the straight-shaped bus bar electrode is covered by the conductive connecting member and at least a portion of the zig-zag-shaped bus bar electrode is not covered by the conductive connecting member; and the straight-shaped bus bar electrode on the one principal surface and the zig-zag-shaped bus bar electrode on the opposite principal surface are connected with the conductive connecting member by resin adhesive such that the straight-shaped bus bar electrode on the one principal surface and the zig-zag-shaped bus bar electrode on the opposite principal surface contacts the conductive connecting member via surrounding resin adhesive.