NOVELTY - The solar cell module (1) has first and second solar cells (11,12) with photoelectric conversion active layers provided between upper electrode layers and lower electrode layers. The shape of first protruding portion matches the shape of second recess portion while shape of first recess portion matches shape of second protruding portion. An electrical interconnect element (13) is arranged on first upper electrode layer and on first exposed section of second lower electrode layer to electrically connect the first upper electrode layer and second lower electrode layer.    USE - Solar cell module.    ADVANTAGE - The isolated solar cells are interconnected in series to increase the output voltage of solar cell module, so that the waste of electrical power is avoided. The margin of error regarding the matching between the first solar cell and the second solar cell can be the width of the first protruding portion or of the second protruding portion along the positive and negative directions, so that manufacturing of solar cell module is made easier. The output electric loss of solar cell is reduced. Multiple solar cells can be interconnected in series or in parallel, without flipping over the solar cell module. Since the electrical interconnect element connects the first wire arranged on the first upper electrode layer and the second wire arranged on the second lower electrode layer along the linear direction, the photocurrent collected by the first wire and the second wire can rapidly transmit to the electrical element which can be made of metal with low electrical resistance. Thus, the serial resistance of the solar cell module can be reduced so as to enhance the efficiency of power generation. The converting efficiency of the solar cell module is increased.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of solar cell module.    Solar cell module (1)    Solar cells (11,12)    Electrical interconnect element (13)    Rear wall plate (14)    Cover plate (16)