KETEP 세계에너지시장정보

1. A photovoltaic module characterized by:a plinterra of battery strings, the battery string comprises a plemburality of cells arranged in the first direction and a welding tape electrically connected to the adjacent cells, the cell has a first grid wire extending in the second direction, the welding tape is electrically connected to the first grid wire, and the plurality of cells comprising an adjacent first cell and a second cell and the second cell is lapped on the first cell;buffer part, the buffer member is located on the lap area of the first cell and the second cell, and at least part of the buffer member is located between the first cell and the welding tape;wherein, on the first cell, the first grid line close to the buffer comprises the first part and the second part in contact with the welding charge, and in the first direction, the width of the second part is greater than the width of the first grid line away from the buffer member; the first grid line is a thin grid; The cell also has a second grid line, the second grid comprises a main portion extending in the first direction and a bifurcation structure located at both ends of the main portion, the bifurcation structure comprises two branch forks, at least part of the second part is located between the two branch forks, or the cell also has a second grid line extending in the first direction, the second grid on the first cell comprises a third part and a fourth part close to the buffer part, and the fourth part is in electrical contact with the second part, along the second direction, the width of the fourth part is greater than the width of the third part.