Black bus bar and photovoltaic module

The utility model provides a black bus bar and a photovoltaic assembly, and belongs to the technical field of solar assemblies. The black bus bar provided by the utility model comprises a copper base material, the copper base material comprises a welding area and a lead area, the lower end face of the welding area is provided with a welding tin layer, the welding tin layer is used for being welded with a welding strip, the upper end face of the welding area is provided with a black coating, and the lower end face of the lead area is provided with a welding aid layer. The lead area is used for being welded with a metal terminal of the junction box. According to the photovoltaic assembly provided by the utility model, the black bus bar is used. According to the black bus bar provided by the utility model, the black coating of the welding area is directly coated on the surface of the copper base material, when the black bus bar and the welding strip are welded, the black coating does not fall off due to solderin