Crystalline silicon cell electrode preparation method and crystalline silicon cell structure

The invention discloses a crystalline silicon cell electrode preparation method and a crystalline silicon cell structure, which are applied to the field of photovoltaic cells, and the crystalline silicon cell electrode preparation method comprises the following steps: providing a crystalline silicon cell prefabricated sheet without a metal electrode, and carrying out slotting treatment on a preset metal electrode area of the crystalline silicon cell prefabricated sheet to form a slotting area, preparing a first barrier layer with a first preset thickness in the slotted area, sintering the first barrier layer to obtain a sintered barrier layer, preparing a second barrier layer with a second preset thickness on the surface of the sintered barrier layer, and preparing a metal conductive layer on the surface of the second barrier layer, and finishing the preparation of the crystalline silicon battery electrode. According to the thickness of the sintering barrier layer needing to be formed, the barrier layer with