Solar photovoltaic cells are the core part of solar photovoltaic modules. Solar cells are mainly divided into crystalline silicon and amorphous silicon. The main raw material of crystalline silicon cells is silicon (commonly speaking, sand or sand grains are refined through a series of reactions), and then divided into monocrystalline silicon and polycrystalline silicon according to different casting processes.
Single-polycrystalline silicon wafers and polycrystalline silicon wafers undergo processes such as texturing→diffusion→etching→coating→sintering→testing to obtain solar cells that can generate electricity. Amorphous silicon is mainly an amorphous silicon thin-film solar cell made of amorphous silicon compounds as the substrate, and its market share is not large.
The core component of solar photovoltaic modules is cells. To put it simply, the manufacturing process of the module is the process of assembling the array of cells with encapsulation materials. The mainstream layout of battery sheets is 60 pieces and 72 pieces, which are arranged in series with ribbons to form a square array.