Laminated battery string with buffer member and photovoltaic module

The invention discloses a laminated battery string with a buffer member and a photovoltaic module, the laminated battery string comprises a plurality of battery pieces which are stacked in sequence, two adjacent battery pieces are respectively a first battery piece and a second battery piece, the first battery piece and the second battery piece are connected through a solder strip, and the buffer member is arranged between the first battery piece and the second battery piece. The edge of the back face of the first battery piece is overlapped with the edge of the front face of the second battery piece, a buffer piece is further arranged between the overlapped positions of the first battery piece and the second battery piece, and the thickness of the buffer piece is larger than a gap between the overlapped positions of the first battery piece and the second battery piece. And the overlapped part of the first battery piece and the second battery piece is supported and buffered through a buffer piece, so that the