Photovoltaic module and manufacturing method thereof

A photovoltaic module, comprising:

• a cell string comprising a plurality of cell pieces, at least one of the cell pieces comprising:
• a cell piece body having a first surface and a second surface opposite to each other in a thickness direction of the cell piece body, with at least one of the first surface and the second surface being defined as a target surface;
• a plurality of first gridlines spaced apart from each other on the target surface of the cell piece body;
• and
• a plurality of solder pad sets arranged in one-to-one correspondence on the first gridlines;
• and
• solder ribbons arranged in one-to-one correspondence with the solder pad sets, with the solder pad sets of two adjacent cell pieces being electrically connected to each other by corresponding solder ribbons;
• wherein at least one of the first gridlines comprises two ends located at two opposite sides of a corresponding solder pad set in an extension direction of the first gridline;
• in the two adjacent cell pieces, one end of the two ends of one cell piece, which is located adjacent to another cell piece, is defined as a target end;
• at least one of the solder ribbons is spaced apart from the target end of a corresponding first gridline in a thickness direction of the cell piece body.