Solar cell and photovoltaic module

A photovoltaic module, comprising a solar cell, wherein the solar cell comprises a substrate, busbars, and at least one marker, the busbars are arranged on a same side of the substrate, and the at least one marker is arranged on the substrate and/or the busbars;

• wherein the busbars comprise at least a first busbar and a second busbar, the first busbar and the second busbar have opposite polarities;
• wherein the first busbar has at least one first pad, the second busbar has at least one second pad, the at least one first pad and the at least one second pad are arranged sequentially along a straight line parallel to an arrangement direction of the busbars, and a distance from a marker of the at least one marker to corresponding first pad of the at least one first pad is different from a distance from a same marker to a corresponding second pad of the at least one second pad;
• wherein an odd number of busbars are provided, and along the arrangement direction of the busbars, adjacent busbars have opposite polarities;
• wherein the first busbar is adjacent to the second busbar, and along the arrangement direction of the busbars, the at least one marker is located between the first busbar and the second busbar;
• wherein a distance from one of the at least one marker to the first busbar is represented as a, a distance from a same marker to the second busbar is represented as b, where a≠b;
• and
• wherein the distance a from the marker to the first busbar satisfies 9 mm≤a≤18 mm, and the distance b from the marker to the second busbar satisfies 9 mm≤b≤18 mm, and/or
• a distance difference |a−b| between the distance a from the marker to the first busbar and the distance b from the marker to the second busbar satisfies 1 mm≤|a−b|≤9 mm.