Electrode structure of back contact cell, back contact cell, back contact cell module, and back contact cell system

An electrode structure of a back contact cell, the back contact cell comprising a first polarity region, a second polarity region, and a first edge, the electrode structure comprising:

• a plurality of first fingers, configured to collect the first polarity region;
• a plurality of second fingers, configured to collect the second polarity region;
• a first busbar, disposed on a side of the back contact cell close to the first edge and connected to the first fingers;
• a plurality of first pad points, wherein each of the second fingers is covered with an insulating material in a partial region of a center line of each of the first pad points;
• a plurality of third fingers, respectively connected to the first busbar and the plurality of first pad points;
• a plurality of first connection electrodes, respectively connected to the first busbar and the first pad points, wherein the plurality of third fingers are disposed adjacent to the plurality of first connection electrodes, and a width of each of the plurality of third fingers is less than a width of each of the plurality of first connection electrodes, a distance between each of the first pad points and the first edge is greater than a distance between the first busbar and the first edge;
• and
• a second busbar, disposed on a side of the back contact cell close to a second edge of the back contact cell and connected to the second fingers, wherein the second edge is opposite to the first edge;
• second pad points;
• and second connection electrodes, respectively connected to the second busbar and the second pad points, wherein a distance between each of the second pad points and the second edge is greater than a distance between the second busbar and the second edge.