Low-silver-consumption solar cell

The utility model relates to a solar cell with low silver consumption. The solar cell comprises a solar cell to be formed with back surface grid lines, back surface silver paste main grid lines on the back surface of the solar cell, back surface copper fine grid lines correspondingly and electrically connected with the back surface silver paste main grid lines, and a protective conductive layer which coats the surfaces of the back surface copper fine grid lines and is mainly made of tin or copper-tin alloy or silver. The utility model aims to provide a low-silver-consumption solar cell, which is suitable for a double-sided power generation solar cell structure, and can greatly reduce the silver consumption of a single cell, thereby reducing the manufacturing cost under the condition that the conversion efficiency of the solar cell is not reduced. 本实用新型涉及一种低耗银太阳能电池片，它包括待形成背面栅线的太阳能电池片、在太阳能电池片背面的背面银浆主栅线、与背面银浆主栅对应电连接的背面铜细栅线以及包覆背面铜细栅线表面且主要由锡或铜锡合金或银制成的保护导电层。本实用新型的目的在于提供一种低耗银太阳能电池片，其适用于双面发电的太阳能电池片结构，可以大幅降低单片银耗量，从而在不