The invention belongs to the technical field of solar cells, and particularly discloses a
solar cell capable of saving
silver paste and a preparation process of the
solar cell. The
solar cell comprises a
silicon chip, a full-
aluminium paste layer is coated on the back of the
silicon chip, a back silver-plated
copper band is arranged on the surface of the full-
aluminium paste layer on the back of the
silicon chip, a pattern of auxiliary grid lines is arranged on the front of the
silicon chip, a plurality of front silver-plated
copper bands with bottoms coated with
silver paste are arranged on the surface of the auxiliary grid lines; the front silver-plated
copper bands are arranged at intervals, and are extended out from the side surface of the
silicon chip towards the back of the
silicon chip; the front silver-plated copper bands comprise main grid lines and an outward
welding band, wherein the main grid lines are arranged on the front of the silicon chip at intervals and form a front
electrode, and the
welding band is bent and extends towards the back of the silicon chip and is provided with a
soldering tin material welded with the silver-plated copper band at the bottom of the adjacent silicon chip. With adoption of the solar
cell capable of saving
silver paste and the preparation process of the solar
cell, the use of silver paste can be reduced, the shading area is reduced, the efficiency of the solar
cell is improved, and simultaneously, the silver-pated copper bands can be directly used as the
welding band between cell plates, thereby simplifying the
welding process, effectively reducing the production cost and being suitable for large-scale industrial production.