Busbar-free solar cell and photovoltaic module

Abstract

A busbar-free solar cell, characterized in that it comprises: a cell body having two opposing cell surfaces; several fingers arranged at intervals from one another on at least one of the cell surfaces, wherein the direction in which the fingers are arranged relative to one another is a first direction, and wherein an extension direction of the fingers is a second direction intersecting the first direction; wherein at least two adjacent fingers each have several overlapping sections, the width at the widest point of the overlapping sections in the first direction being W1, and the width of the remaining parts of the fingers outside the overlapping sections being W2; wherein W1 > W2;and connecting conductors, each connecting two adjacent fingers, wherein at least two ends of one of the connecting conductors are each connected to the overlap sections of the two fingers, and wherein one of the connecting conductors forms an interconnected overlap structure with the two connected overlap sections.