1results about How to "Improve lapping effect" patented technology

The application relates to the technical field of solar cells, in particular to a main-grid-free solar cell and a photovoltaic module. The main-grid-free solar cell comprises a cell body, a plurality of thin grids and connecting grid lines. The cell body has two oppositely arranged cell surfaces. The plurality of thin grids are arranged on at least one cell surface in a spaced manner, and the direction of the spaced arrangement is a first direction. The extension direction of the thin grids is a second direction, and the second direction intersects the first direction. At least two adjacent thin grids each have a plurality of overlapping segments. Each connecting grid line is connected between two adjacent thin grids. The two ends of at least one connecting grid line are respectively connected to the overlapping segments of the two thin grids, and the connecting grid line and the two overlapping segments connected thereto form an interconnecting overlapping structure. The main-grid-free solar cell is provided with the interconnecting overlapping structure, so that the overlapping effect of the thin grids and the conductive wires is better, the risk of thin grid breakage is reduced, and the light-shielding area is not excessively increased when the breakage is prevented.